Understanding these legal requirements ensures compliance with local laws and fosters a positive working relationship with your helper.In order to grow rapidly, maid services Singapore Do not hesitate to change the strategy and rearrange the products, so as to obtain unexpected results. https://1achieve.net

　　

　　ESSENTIAL KNOWLEDGE

　　

　　Bryan

　　

　　7/30/20248 min read

　　

　　Overview of the Legal Obligations of Employers

　　

　　1. Employment Contract

　　

　　Employers are required to provide a written employment contract to their domestic helpers. This contract should outline the terms of employment, including salary, rest days, job scope, and other relevant conditions.

　　

　　Key Elements of the Contract: The contract should specify the helper¨s duties, working hours, rest days, salary, benefits, and termination conditions.

　　

　　Signatures: Both the employer and the helper should sign the contract to acknowledge their agreement to the terms.

　　

　　Having a clear and comprehensive employment contract helps prevent misunderstandings and provides a reference point for resolving disputes. It should be drafted in a language that the helper understands to ensure full comprehension and mutual agreement. Providing a copy of the contract to the helper and keeping a signed copy for the employer’s records is essential.

　　

　　2. Work Permit

　　

　　Employers must apply for a work permit for their domestic helper through the Ministry of Manpower (MOM). The work permit is essential for legal employment in Singapore.

　　

　　Application Process: Submit the necessary documents and pay the required fees to obtain the work permit. The application can be done online through MOM¨s website, and it typically involves providing details about the employer, the helper, and the employment terms.

　　

　　Renewal: The work permit must be renewed before it expires. Employers should monitor the permit¨s validity and initiate the renewal process in advance. The renewal process also involves medical examinations and possibly renewing the security bond and insurance.

　　

　　3. Monthly Levy

　　

　　The employer is responsible for paying a monthly levy to MOM. The levy rate depends on the household¨s specific circumstances, such as whether there are young children, elderly, or disabled family members.

　　

　　Levy Rates: The standard levy rate is SGD 300 per month, while the concessionary rate is SGD 60 per month for eligible households. The concessionary levy can significantly reduce the financial burden on the employer.

　　

　　Payment: Ensure timely payment of the levy to avoid penalties. Levy payments can be made via various methods, including GIRO, and it¨s important to set up the payment system to avoid missing deadlines.

　　

　　4. Medical Insurance and Security Bond

　　

　　Employers are required to purchase medical insurance and provide a security bond for their domestic helpers.

　　

　　Medical Insurance: A minimum coverage of SGD 15,000 per year for inpatient care and day surgery is mandatory. This insurance protects both the helper and the employer in case of medical emergencies.

　　

　　Security Bond: A SGD 5,000 security bond (for non-Malaysian helpers) acts as a financial guarantee to the Singapore government. This bond can be in the form of insurance, which typically costs around SGD 50 to SGD 80 per year. The security bond ensures compliance with MOM regulations and covers potential repatriation costs or violations of employment terms.

　　

　　5. Settling-In Programme (SIP)

　　

　　First-time domestic helpers must attend the Settling-In Programme within three working days of arrival in Singapore. The SIP educates helpers on safety measures, living in Singapore, and their rights and responsibilities.

　　

　　Cost: The SIP costs SGD 75 and is a one-day course. Employers should ensure that their helpers attend this programme as it is crucial for their adjustment and understanding of local regulations.

　　

　　Enrollment: Employers should arrange for their helper to attend the SIP promptly. The programme covers essential topics such as emergency procedures, workplace safety, and cultural adaptation, which are vital for the helper’s well-being and integration.

　　

　　6. Rest Days

　　

　　Domestic helpers are entitled to one rest day per week. Employers and helpers can mutually agree to compensate rest days with payment if the helper agrees to work on her rest day (Minimum 1 Rest Day per month).

　　

　　Compensation Rate: The compensation should be at least one day¨s salary for each rest day worked. This ensures that helpers are fairly compensated for additional work and helps maintain their well-being.

　　

　　Agreement: Any agreement to work on rest days should be documented and mutually agreed upon. It¨s essential to discuss and formalize these agreements to prevent misunderstandings and ensure that the helper¨s rights are respected.

　　

　　7. Medical Check-Ups

　　

　　Domestic helpers must undergo regular medical check-ups to ensure they are fit for work. The first medical examination should be conducted within two weeks of the helper¨s arrival, followed by six-monthly check-ups.

　　

　　Cost: Employers are responsible for the cost of these medical examinations. Ensuring the helper’s health is a critical part of maintaining a safe and healthy work environment.

　　

　　Results: Employers should ensure the results are submitted to MOM promptly. Regular health checks help detect any health issues early and ensure that the helper remains fit for her duties.

　　

　　8. Fair Treatment

　　

　　Employers must treat their domestic helpers fairly and with respect. This includes providing adequate food, accommodation, and a safe working environment.

　　

　　Food: Provide nutritious meals that meet the helper¨s dietary requirements. Discuss the helper¨s dietary preferences and ensure that meals are balanced and sufficient.

　　

　　Accommodation: Ensure the helper has a suitable place to sleep with privacy and basic amenities. The living space should be clean, safe, and comfortable, contributing to the helper¨s overall well-being.

　　

　　Safety: Maintain a safe working environment and provide training on the use of household equipment. Employers should also ensure that the helper has access to necessary safety gear and knows how to handle emergencies.

　　

　　9. Repatriation

　　

　　Employers are responsible for repatriating their domestic helpers at the end of the employment contract or if the employment is terminated. This includes providing the necessary travel arrangements and covering the cost of repatriation.

　　

　　Travel Arrangements: Ensure that the helper¨s travel documents are in order and book the necessary transportation.

　　

　　Cost Coverage: The employer must cover the cost of repatriation, ensuring that the helper returns home safely.

　　

　　Rights of Domestic Helpers Under Singapore Law

　　

　　1. Right to a Written Contract

　　

　　Domestic helpers have the right to receive a written employment contract that clearly outlines their terms of employment. This contract serves as a reference point for resolving disputes and ensuring both parties understand their obligations.

　　

　　Clarity and Transparency: The contract should be written in a language the helper understands, ensuring full comprehension of the terms.

　　

　　Dispute Resolution: The contract serves as a legal document that can be used to resolve any disputes that may arise during the employment period.

　　

　　2. Right to Fair Compensation

　　

　　Domestic helpers are entitled to receive their agreed-upon salary on time and in full. Employers should provide a payslip or receipt for each payment to ensure transparency.

　　

　　Salary: Must be paid within seven days after the end of each salary period. This ensures that helpers are compensated promptly for their work.

　　

　　Payslip: Employers should issue a payslip detailing the salary amount and any deductions. This helps maintain transparency and allows helpers to keep track of their earnings. If a payslip is not available, there should be a signed record on the receipt of each payment.

　　

　　3. Right to Rest Days

　　

　　Helpers are entitled to one rest day per week (minimum 1 rest day per month). This rest day can be used for personal activities, rest, or socializing.

　　

　　Rest Day Agreement: Any agreement to work on rest days should be mutually agreed upon and documented. Helpers should have the freedom to enjoy their rest days without pressure.

　　

　　Compensation: Helpers should be compensated if they agree to work on their rest day. This ensures fair treatment and respect for the helper¨s time.

　　

　　4. Right to Adequate Accommodation

　　

　　Employers must provide domestic helpers with adequate accommodation that ensures their privacy and comfort.

　　

　　Private Room: Ideally, a private room with proper ventilation and basic amenities. This ensures that the helper has a comfortable and private living space.

　　

　　Shared Accommodation: If sharing, ensure the helper¨s privacy and comfort are respected. The living arrangements should be discussed and agreed upon by both parties.

　　

　　5. Right to Medical Care

　　

　　Helpers are entitled to medical care, including medical insurance coverage for inpatient care and day surgery.

　　

　　Medical Insurance: Employers must purchase medical insurance with a minimum coverage of SGD 15,000 per year. This ensures that helpers have access to necessary medical care without financial burden.

　　

　　Medical Check-Ups: Regular medical check-ups to ensure the helper is fit for work. Employers should ensure that the helper receives timely medical attention and that any health issues are addressed promptly.

　　

　　6. Right to Fair Treatment and Respect

　　

　　Domestic helpers have the right to be treated fairly and with respect. This includes freedom from abuse, harassment, and unfair treatment.

　　

　　Protection from Abuse: Employers must not abuse or exploit their helpers physically, emotionally, or verbally. Any form of abuse is a serious violation of the helper¨s rights and should be reported to the authorities.

　　

　　Complaint Mechanisms: Helpers can report any abuse or unfair treatment to MOM or other relevant authorities. Employers should be aware of these mechanisms and ensure that helpers are informed about their rights.

　　

　　7. Right to Privacy and Communication

　　

　　Helpers have the right to communicate with their family and friends. Employers should respect their privacy and allow them to make phone calls or use other means of communication.

　　

　　Communication Facilities: Provide reasonable access to communication facilities. This helps the helper stay connected with her family and support network.

　　

　　Privacy: Respect the helper¨s privacy during her rest time and personal activities. Employers should ensure that the helper has a private space for communication and personal activities.

　　

　　8. Right to Termination and Transfer

　　

　　Helpers have the right to terminate their employment contract and seek a transfer to another employer under certain conditions.

　　

　　Notice Period: Provide the agreed notice period as stipulated in the employment contract. This ensures that both parties have time to make necessary arrangements.

　　

　　Transfer Process: Follow the legal procedures for transferring to another employer. Employers should assist the helper in the transfer process and ensure that all legal requirements are met.

　　

　　9. Right to Proper Working Conditions

　　

　　Domestic helpers have the right to proper working conditions, including reasonable working hours, safe working environments, and access to necessary resources.

　　

　　Reasonable Working Hours: Employers should ensure that helpers are not overworked and have adequate rest periods.

　　

　　Safe Working Environment: Provide a safe and healthy working environment, including proper training on the use of household equipment and safety procedures.

　　

　　Access to Resources: Ensure that helpers have access to necessary resources and tools to perform their duties effectively.

　　

　　10. Right to Training and Development

　　

　　Domestic helpers have the right to training and development opportunities to enhance their skills and knowledge.

　　

　　Skill Enhancement: Employers can provide or facilitate training programs to help helpers improve their skills and knowledge. This benefits both the helper and the employer by enhancing job performance.

　　

　　Development Opportunities: Encourage and support helpers in pursuing development opportunities. This can include attending courses or workshops that are relevant to their job.

　　

　　11. Right to Dignity and Respect

　　

　　Domestic helpers have the right to be treated with dignity and respect at all times.

　　

　　Respectful Treatment: Employers should treat helpers with respect, acknowledging their contributions and ensuring that their dignity is upheld.

　　

　　Positive Working Relationship: Foster a positive working relationship based on mutual respect and understanding. This contributes to a harmonious and productive household environment.

　　

　　12. Right to Seek Help and Support

　　

　　Domestic helpers have the right to seek help and support if they face any issues or challenges during their employment.

　　

　　Support Networks: Encourage helpers to seek help and support from their support networks, including friends, family, and community organizations.

　　

　　Helplines and Services: Inform helpers about available helplines and services where they can seek assistance if needed. Employers should be supportive and understanding if helpers need to seek external help.

　　The Key to a Harmonious Employer-Domestic Helper Relationship in SingaporeIn addition to domestic, maid services Singapore It has also emerged in the international field and gradually gained the favor of more foreign friends. https://1achieve.net

　　

　　ESSENTIAL KNOWLEDGE

　　

　　Bryan

　　

　　7/2/20243 min read

　　

　　1. Importance of Effective Communication

　　

　　Imagine a household where instructions are understood the first time they’re given, where concerns are expressed and addressed promptly, and where laughter often fills the air because jokes and stories are shared and appreciated. This isn’t a utopian dream but a realistic scenario in homes where clear communication prevails between employers and their domestic helpers.Effective communication fosters a sense of trust and respect. It minimizes misunderstandings and conflicts, making daily interactions smoother and more pleasant. According to Dr. Sarah Tan, a family psychologist, “Clear communication is the bedrock of any strong relationship. In the context of employers and domestic helpers, it’s not just about conveying tasks; it’s about building a mutual understanding and respect that transcends cultural and linguistic barriers.”

　　

　　2. Tips for Language Learning

　　

　　For employers and domestic helpers eager to bridge the language divide, here are some actionable tips to enhance language skills:

　　

　　Leverage Technology: Use language learning apps like Duolingo or Babbel, which offer interactive lessons on various languages.

　　

　　Practice Daily: Encourage daily conversations, no matter how basic, to build confidence and fluency.

　　

　　Language Exchange: Set aside time each week for a language exchange session where both parties teach each other their native languages.

　　

　　Utilize Media: Watch movies, listen to music, or read books in the language being learned to familiarize with its usage in different contexts.

　　

　　Real-life story: Maria, a domestic helper from the Philippines, shared, “My employer and I dedicated 30 minutes every evening to teach each other our languages. Not only has my English improved, but we’ve also grown closer through the process.”

　　

　　3. Overcoming Language Barriers

　　

　　Despite best efforts, language barriers can persist. Here are some strategies and technologies to help bridge these gaps:

　　

　　Translation Apps: Tools like Google Translate can facilitate immediate translation and understanding.

　　

　　Pictorial Aids: Use pictures or symbols for common tasks or items around the house to avoid confusion.

　　

　　Non-verbal Communication: Sometimes, actions speak louder than words. Gestures, facial expressions, and body language can convey messages effectively.

　　

　　Expert quote: “In today’s digital age, technology offers unprecedented ways to overcome language barriers,” says tech analyst Jason Lim. “However, the willingness to understand and be patient with each other is equally important.”

　　

　　4. Cultural Nuances in Communication

　　

　　Understanding the cultural context of communication can significantly enhance interactions. For instance, in some cultures, direct eye contact might be considered rude, while in others, it’s a sign of honesty.

　　

　　Employers and domestic helpers should take the time to learn about each other’s cultural backgrounds. This knowledge can prevent unintentional offenses and deepen mutual respect.

　　

　　Testimonial: Aishah, an employer, noted, “Learning about my helper’s cultural background helped me understand her better. It was enlightening to see how our communication improved as we became more culturally aware.”

　　

　　5. Building a Positive Relationship Through Communication

　　

　　Open and respectful dialogue is the foundation of a positive relationship. Here are some practices to encourage:

　　

　　Regular Check-ins: Have weekly meetings to discuss any concerns or suggestions.

　　

　　Active Listening: Show genuine interest in understanding the other person’s perspective.

　　

　　Express Appreciation: Acknowledge each other’s efforts and express gratitude regularly.

　　

　　Engaging question: How can you implement these communication strategies in your household to foster a stronger bond with your domestic helper?

　　

　　Call to action: Start today by choosing one tip from this article to improve communication with your domestic helper. Remember, small steps can lead to significant changes in building a harmonious and respectful relationship.

　　

　　In conclusion, language and communication abilities are crucial in ensuring a smooth and positive relationship between employers and domestic helpers in Singapore. By prioritizing effective communication, embracing language learning, overcoming barriers with technology, understanding cultural nuances, and fostering open dialogue, employers and domestic helpers can create a nurturing and respectful home environment.

　　The Key to a Harmonious Employer-Domestic Helper Relationship in SingaporeIn today’s market background, Singapore house maid agency Still maintain a strong sales data, and constantly beat the competitors in front of us. https://1achieve.net

　　

　　ESSENTIAL KNOWLEDGE

　　

　　Bryan

　　

　　7/2/20243 min read

　　

　　1. Importance of Effective Communication

　　

　　Imagine a household where instructions are understood the first time they’re given, where concerns are expressed and addressed promptly, and where laughter often fills the air because jokes and stories are shared and appreciated. This isn’t a utopian dream but a realistic scenario in homes where clear communication prevails between employers and their domestic helpers.Effective communication fosters a sense of trust and respect. It minimizes misunderstandings and conflicts, making daily interactions smoother and more pleasant. According to Dr. Sarah Tan, a family psychologist, “Clear communication is the bedrock of any strong relationship. In the context of employers and domestic helpers, it’s not just about conveying tasks; it’s about building a mutual understanding and respect that transcends cultural and linguistic barriers.”

　　

　　2. Tips for Language Learning

　　

　　For employers and domestic helpers eager to bridge the language divide, here are some actionable tips to enhance language skills:

　　

　　Leverage Technology: Use language learning apps like Duolingo or Babbel, which offer interactive lessons on various languages.

　　

　　Practice Daily: Encourage daily conversations, no matter how basic, to build confidence and fluency.

　　

　　Language Exchange: Set aside time each week for a language exchange session where both parties teach each other their native languages.

　　

　　Utilize Media: Watch movies, listen to music, or read books in the language being learned to familiarize with its usage in different contexts.

　　

　　Real-life story: Maria, a domestic helper from the Philippines, shared, “My employer and I dedicated 30 minutes every evening to teach each other our languages. Not only has my English improved, but we’ve also grown closer through the process.”

　　

　　3. Overcoming Language Barriers

　　

　　Despite best efforts, language barriers can persist. Here are some strategies and technologies to help bridge these gaps:

　　

　　Translation Apps: Tools like Google Translate can facilitate immediate translation and understanding.

　　

　　Pictorial Aids: Use pictures or symbols for common tasks or items around the house to avoid confusion.

　　

　　Non-verbal Communication: Sometimes, actions speak louder than words. Gestures, facial expressions, and body language can convey messages effectively.

　　

　　Expert quote: “In today’s digital age, technology offers unprecedented ways to overcome language barriers,” says tech analyst Jason Lim. “However, the willingness to understand and be patient with each other is equally important.”

　　

　　4. Cultural Nuances in Communication

　　

　　Understanding the cultural context of communication can significantly enhance interactions. For instance, in some cultures, direct eye contact might be considered rude, while in others, it’s a sign of honesty.

　　

　　Employers and domestic helpers should take the time to learn about each other’s cultural backgrounds. This knowledge can prevent unintentional offenses and deepen mutual respect.

　　

　　Testimonial: Aishah, an employer, noted, “Learning about my helper’s cultural background helped me understand her better. It was enlightening to see how our communication improved as we became more culturally aware.”

　　

　　5. Building a Positive Relationship Through Communication

　　

　　Open and respectful dialogue is the foundation of a positive relationship. Here are some practices to encourage:

　　

　　Regular Check-ins: Have weekly meetings to discuss any concerns or suggestions.

　　

　　Active Listening: Show genuine interest in understanding the other person’s perspective.

　　

　　Express Appreciation: Acknowledge each other’s efforts and express gratitude regularly.

　　

　　Engaging question: How can you implement these communication strategies in your household to foster a stronger bond with your domestic helper?

　　

　　Call to action: Start today by choosing one tip from this article to improve communication with your domestic helper. Remember, small steps can lead to significant changes in building a harmonious and respectful relationship.

　　

　　In conclusion, language and communication abilities are crucial in ensuring a smooth and positive relationship between employers and domestic helpers in Singapore. By prioritizing effective communication, embracing language learning, overcoming barriers with technology, understanding cultural nuances, and fostering open dialogue, employers and domestic helpers can create a nurturing and respectful home environment.

　　Protein is composed of C (carbon), H (hydrogen), O (oxygen) and N (nitrogen). Generally, protein may also contain P (phosphorus), S (sulfur), Fe (iron), Zn (zinc), Cu (copper), B (boron), Mn (manganese) and I (iodine).beyond doubt Antibody Discovery It will definitely lead the development direction of the whole industry and let its light bloom in this field. https://www.alphalifetech.com/

　　

　　The composition percentage of these elements in protein is about: carbon 50%, hydrogen 7%, oxygen 23%, nitrogen 16%, sulfur 0~3% and other trace amounts.

　　

　　(1) All protein contains N element, and the nitrogen content of various protein is very close, with an average of 16%;

　　

　　(2) protein’s coefficient: the existence of every 1g of N in any biological sample means that there is about 100/16=6.25g of protein, and 6.25 is often called protein’s constant.

　　

　　(3) protein is a biopolymer based on amino acids. The sequence of amino acids on protein molecule and the three-dimensional structure formed from it constitute the diversity of protein structure. Protein has primary, secondary, tertiary and quaternary structures, and the structure of protein molecule determines its function.

　　Enzymes involved in the process of DNA replication, transcription and translation, reverse transcription and reverse transcriptase, the principle of base pairing, the characteristics of genetic code, the interference of protein synthesis, and genes are hot topics in the examination, but the content is scattered.More importantly, put small molecules It is imperative for us to make thorough analysis and maximize its social function. https://www.all-chemistry.com/

　　

　　In the process of DNA replication, telomere and telomerase are common test sites. Telomerase is an enzyme composed of RNA and protein. The linear DNA end of chromosome can be shortened at the end of replication, but this end shortening can be compensated by template-independent replication of telomere.

　　

　　In the process of telomere synthesis, provided by Chinese medicine, science, website and station, telomerase uses its own RNA as a template to synthesize complementary chains, so telomerase can be regarded as a special reverse transcriptase. Reverse transcription and reverse transcriptase. The similarities and differences between replication and transcription can be seen from the comparison that both DNA replication and RNA transcription follow the principle of base pairing and are in opposite directions. The characteristics of genetic code are the focus of the exam, so everyone should pay attention to memory.

　　Protein is the “building material” of organisms and cells, such as protein in muscles, and human hair and nails are all made of protein.Through bit by bit efforts, let Antibody Phage Display Service Our market share is getting higher and higher, and the return on investment is also rising steadily. https://www.alphalifetech.com/

　　

　　Catalytic function:

　　

　　The chemical essence of most enzymes in organisms is protein. In our daily life, we also use enzyme-added washing powder, which can effectively remove stains.

　　

　　Immune function:

　　

　　In our present environment, there are bacteria and viruses everywhere, and our body will not get sick every three days with an immune system, and immune proteins, such as antibodies, play a key role in this.

　　

　　Transport function:

　　

　　Protein with transport function can be divided into two categories, one is familiar to us-hemoglobin in red blood cells, which is used to transport oxygen; The other is the carrier protein on biofilm, which is used to transport amino acids, glucose and other substances.

　　

　　Adjustment function:

　　

　　Some protein can transmit information and regulate the life activities of the body. Such as insulin, which regulates glucose metabolism.

　　Classification of amino acids, several special amino acids, molecular structure and physical and chemical properties of protein, composition of nucleic acid, double helix structure of DNA, basic concept of enzyme, Michaelis equation, coenzyme composition.To some extent, inhibitors Our development has surpassed many peer businesses, but it has never stopped moving forward. https://www.all-chemistry.com/

　　

　　Memorize 20 kinds of amino acids and try to remember English abbreviations and codes as much as possible, because exams often appear directly with codes. Protein’s molecular structure often examines the manifestations of various levels of structure and their bonds. The physical and chemical properties of protein and the purification of protein usually use the physical and chemical properties of protein to purify protein without destroying the structure of protein. Pay attention to the identification of amino acids and physical and chemical properties of protein. The basic unit of nucleic acid is nucleotide, which is composed of multiple nucleotides, and the connecting bond between nucleotides is 3′, 5′- phosphodiester bond. DNA double helix structure, in which two bases exist in strict accordance with A = T (two hydrogen bonds) and G triple C (three hydrogen bonds), and the characteristics of various RNA.

　　

　　In addition, we should pay attention to some commonly used concepts in nucleic acid problem solving. The first thing that enzymes should pay attention to is some basic concepts, such as ribozyme, deoxyribozyme, enzyme activity center, isozyme, isomerase and so on. The key point of the Metric Equation test is V=Vmax[S” target=_blank>/Km+[S” target=_blank>, which explains the equation of the relationship between the concentration of enzymatic reaction and the reaction speed. In the exam, candidates are sometimes asked to do simple calculations according to this equation before they can answer. The difference of several inhibitors.

　　

　　According to the characteristics of allosteric enzymes, it should be noted that allosteric regulation can cause conformational changes of enzymes. It is important to pay special attention here that configuration refers to the basic structural composition of substances, and conformation refers to the spatial change of substances. Allosteric regulation can cause the conformational change of enzymes, but not the conformational change of enzymes.

　　Protein is a complex organic polymer compound composed of α -amino acids combined in a certain order to form a polypeptide chain, and then one or more polypeptide chains are combined in a specific way. Amino acids are the basic units of protein, and they are linked into peptide chains through dehydration and condensation. Each polypeptide chain has twenty to hundreds of amino acid residues (-R); Various amino acid residues are arranged in a certain order.Therefore, recombinant proteins Only then will more and more pump owners cheer for it and spread the value and function of the brand. https://www.alphalifetech.com/

　　

　　the composition characteristics of protein

　　

　　The amino acid sequence of protein is encoded by the corresponding gene. In addition to the 20 basic amino acids encoded by the genetic code, in protein, some amino acid residues can be modified after translation to change their chemical structure, thus activating or regulating protein. Multiple protein can form a stable protein complex together, often by combining together, and fold or spiral to form a certain spatial structure, thus playing a specific function. The organelles of synthetic peptides are ribosomes on rough endoplasmic reticulum in cytoplasm. The difference of protein lies in the variety, number, arrangement order of amino acids and the spatial structure of peptide chains.

　　

　　Protein is composed of C (carbon), H (hydrogen), O (oxygen) and N (nitrogen), and generally protein may also contain P (phosphorus), S (sulfur), Fe (iron), Zn (zinc), Cu (copper), B (boron), Mn (manganese) and I (iodine).

　　

　　The composition percentage of these elements in protein is about: 50% carbon, 7% hydrogen, 23% oxygen, 16% nitrogen, 0-3% sulfur and other trace amounts.

　　

　　All protein contains N element, and the nitrogen content of various protein is very close, with an average of 16%;

　　

　　Every 1g of N in any biological sample means that there is about 100/16=6.25g protein, and 6.25 is often called protein constant.

　　Classification of amino acids, several special amino acids, molecular structure and physical and chemical properties of protein, composition of nucleic acid, double helix structure of DNA, basic concept of enzyme, Michaelis equation, coenzyme composition.The above conclusions show that Chemical Custom synthesis To a great extent, it can bring new vitality to the market and make the industry develop well. https://www.all-chemistry.com/

　　

　　Memorize 20 kinds of amino acids and try to remember English abbreviations and codes as much as possible, because exams often appear directly with codes. Protein’s molecular structure often examines the manifestations of various levels of structure and their bonds. The physical and chemical properties of protein and the purification of protein usually use the physical and chemical properties of protein to purify protein without destroying the structure of protein. Pay attention to the identification of amino acids and physical and chemical properties of protein. The basic unit of nucleic acid is nucleotide, which is composed of multiple nucleotides, and the connecting bond between nucleotides is 3′, 5′- phosphodiester bond. DNA double helix structure, in which two bases exist in strict accordance with A = T (two hydrogen bonds) and G triple C (three hydrogen bonds), and the characteristics of various RNA.

　　

　　In addition, we should pay attention to some commonly used concepts in nucleic acid problem solving. The first thing that enzymes should pay attention to is some basic concepts, such as ribozyme, deoxyribozyme, enzyme activity center, isozyme, isomerase and so on. The key point of the Metric Equation test is V=Vmax[S” target=_blank>/Km+[S” target=_blank>, which explains the equation of the relationship between the concentration of enzymatic reaction and the reaction speed. In the exam, candidates are sometimes asked to do simple calculations according to this equation before they can answer. The difference of several inhibitors.

　　

　　According to the characteristics of allosteric enzymes, it should be noted that allosteric regulation can cause conformational changes of enzymes. It is important to pay special attention here that configuration refers to the basic structural composition of substances, and conformation refers to the spatial change of substances. Allosteric regulation can cause the conformational change of enzymes, but not the conformational change of enzymes.

　　Protein is composed of C (carbon), H (hydrogen), O (oxygen) and N (nitrogen). Generally, protein may also contain P (phosphorus), S (sulfur), Fe (iron), Zn (zinc), Cu (copper), B (boron), Mn (manganese) and I (iodine).Only by working together can we turn Antibody Phage Display Service The value of the play out, the development of the supply market needs. https://www.alphalifetech.com/

　　

　　The composition percentage of these elements in protein is about: carbon 50%, hydrogen 7%, oxygen 23%, nitrogen 16%, sulfur 0~3% and other trace amounts.

　　

　　(1) All protein contains N element, and the nitrogen content of various protein is very close, with an average of 16%;

　　

　　(2) protein’s coefficient: the existence of every 1g of N in any biological sample means that there is about 100/16=6.25g of protein, and 6.25 is often called protein’s constant.

　　

　　(3) protein is a biopolymer based on amino acids. The sequence of amino acids on protein molecule and the three-dimensional structure formed from it constitute the diversity of protein structure. Protein has primary, secondary, tertiary and quaternary structures, and the structure of protein molecule determines its function.