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WorksheetsQuiz về HÓA DƯỢC - BT.1
Total questions: 20
Worksheet time: 13mins
Which statement about antibodies is NOT TRUE?
Antibodies are proteins
Antibodies are also called vaccines
Antibodies are products of the immune system
Antibodies have a structure dependent on antigens
Ether groups can:
Participate in hydrogen bonding as a hydrogen donor
Participate in hydrogen bonding as a hydrogen acceptor
Not participate in hydrogen bonding
Participate in hydrogen bonding as both a donor and an acceptor
Which of the following is NOT a protein?
Enzyme
Receptor
Neurotransmitter
All of the above
Choose the incorrect statement about G-protein receptors:
They are fundamentally proteins
They consist of 3 protein subunits
The active form binds GTP and activates enzymes
The inactive form binds GMP
What condition must a substance meet to be an agonist of a receptor?
The substance has a structure opposite to that of the natural neurotransmitter of the receptor
The substance can bind to the surface of the receptor but does not change its conformation
The substance has a structure similar to that of the natural neurotransmitter of the receptor
The substance can bind to the surface of the receptor and change its conformation
Which structural component is necessary for a protein to attach to the cell membrane?
Primary structure
Secondary structure
Tertiary structure
Quaternary structure
What is the role of CYP P450 enzymes in the body?
Energy production
Hormone regulation
Important enzymes in many organs, acting as catalysts
DNA replication
When is it necessary to use an enzyme inhibitor?
When enzyme activity is uncontrollable
When enzyme activity is too slow
When enzyme activity is optimal
When enzyme activity is unnecessary
What type of bonds do neurotransmitters form with receptor surfaces?
Ionic bonds, Van der Waals bonds, hydrogen bonds
Covalent bonds, metallic bonds, ionic bonds
Hydrogen bonds, peptide bonds, disulfide bonds
Van der Waals bonds, covalent bonds, metallic bonds
What is the function of carbohydrates on the surface of animal cells?
Energy storage
Cell signaling
Cell marking
Structural support
Which of the following statements about enzymes is NOT TRUE?
Enzymes can be affected by temperature and pH
Enzymes are specific to their substrates
Enzymes are consumed in the reactions they catalyze
Enzymes speed up chemical reactions
What is the primary role of lipids in biological membranes?
Transport of molecules
Structural integrity
Energy storage
Cell signaling
Which type of bond is primarily responsible for the secondary structure of proteins?
Hydrogen bonds
Ionic bonds
Covalent bonds
Disulfide bonds
Which of the following statements about the active site of an enzyme is TRUE?
The active site is not involved in the enzyme's catalytic activity
The active site can change shape to fit different substrates
The active site is always located at the enzyme's surface
The active site is where substrates bind to the enzyme
What type of interaction is primarily responsible for the tertiary structure of proteins?
Hydrophobic interactions
Hydrogen bonds
Ionic bonds
Peptide bonds
Thuốc Aciclovir chống virus Herpes simplex theo cơ chế nào?
Những dẫn xuất được tạo thành từ chiến thuật cố định cấu trúc mục đích là để giúp dễ tổng hợp chúng hơn.
Tiền dược là chất sẽ được chuyển thành hoạt chất nhờ những phản ứng chuyển hóa của cơ thể.
Đơn giản hóa cấu trúc hoạt chất làm hoạt chất dễ chuyển hóa hơn.
Agonist của một receptor là chất (a)
