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Questions and Answers
Which macromolecule is made up of unbranched β glucose molecules and cannot be digested by humans?
Which macromolecule is made up of unbranched β glucose molecules and cannot be digested by humans?
- Chitin
- Cellulose (correct)
- DNA
- Starch
What distinguishes RNA from DNA?
What distinguishes RNA from DNA?
- DNA encodes hereditary information; RNA does not.
- DNA forms duplexes; RNA does not.
- DNA contains thymine; RNA contains uracil. (correct)
- All of the above
If a cell is exposed to a moderately high temperature, which molecule is likely to stop working first?
If a cell is exposed to a moderately high temperature, which molecule is likely to stop working first?
- Protein (correct)
- DNA
- Lipid
- RNA
Which molecule determines the structure of proteins?
Which molecule determines the structure of proteins?
In the synthesis of lipids, what are the basic building blocks used?
In the synthesis of lipids, what are the basic building blocks used?
Which type of isomerism is exhibited by propanal compared to acetone?
Which type of isomerism is exhibited by propanal compared to acetone?
What kind of bond would be present in a completely flat section of a biological molecule?
What kind of bond would be present in a completely flat section of a biological molecule?
Which functional group is most important for DNA molecules?
Which functional group is most important for DNA molecules?
What can carbon-based molecules do because of the versatile bond structures formed by carbon?
What can carbon-based molecules do because of the versatile bond structures formed by carbon?
What type of chemical bond joins a functional group to the carbon skeleton of a large molecule?
What type of chemical bond joins a functional group to the carbon skeleton of a large molecule?
Which polysaccharide has the greatest number of branches?
Which polysaccharide has the greatest number of branches?
Which functional group is present in a carboxyl group?
Which functional group is present in a carboxyl group?
What type of reaction joins monomers to form polymers?
What type of reaction joins monomers to form polymers?
Which biological molecule category includes sugars and the polymers of sugars?
Which biological molecule category includes sugars and the polymers of sugars?
What is the primary energy-transferring molecule in the cell?
What is the primary energy-transferring molecule in the cell?
Which functional group is involved in ATP molecules as part of its structure?
Which functional group is involved in ATP molecules as part of its structure?
What are monomers in the context of macromolecules?
What are monomers in the context of macromolecules?
Cis-trans isomers have different covalent arrangements of their atoms.
Cis-trans isomers have different covalent arrangements of their atoms.
Hydrocarbons are organic molecules that consist of carbon, hydrogen, and oxygen.
Hydrocarbons are organic molecules that consist of carbon, hydrogen, and oxygen.
Isomers are compounds with the same molecular formula and the same properties.
Isomers are compounds with the same molecular formula and the same properties.
Enantiomers are isomers that are identical mirror images of each other.
Enantiomers are isomers that are identical mirror images of each other.
Nucleic acids play a role in the storage and expression of genetic information.
Nucleic acids play a role in the storage and expression of genetic information.
Small changes in the RNA may cause large changes in a protein.
Small changes in the RNA may cause large changes in a protein.
The abnormal hemoglobin molecules in sickle-cell disease cause red blood cells to deform into a spherical shape.
The abnormal hemoglobin molecules in sickle-cell disease cause red blood cells to deform into a spherical shape.
All carbon-based molecules have mirror-image versions due to versatile bond structures formed by carbon.
All carbon-based molecules have mirror-image versions due to versatile bond structures formed by carbon.
Polysaccharides can branch out due to the versatile bond structures formed by carbon.
Polysaccharides can branch out due to the versatile bond structures formed by carbon.
Nucleotides are the basic building blocks of proteins.
Nucleotides are the basic building blocks of proteins.
Hydroxyl group is the functional group most important for DNA molecules.
Hydroxyl group is the functional group most important for DNA molecules.
Proteins help form the cell walls of bacteria.
Proteins help form the cell walls of bacteria.
Lipids, such as oils, are primarily used for energy storage in animals.
Lipids, such as oils, are primarily used for energy storage in animals.
Nucleic acids are responsible for storing structural information within a cell.
Nucleic acids are responsible for storing structural information within a cell.
Carbon atoms can bond with up to five other elements.
Carbon atoms can bond with up to five other elements.
In molecules with multiple carbons, every carbon bonded to four other atoms has a linear shape.
In molecules with multiple carbons, every carbon bonded to four other atoms has a linear shape.
When two carbon atoms are joined by a triple bond, the atoms connected to the carbons lie in the same plane as the carbons.
When two carbon atoms are joined by a triple bond, the atoms connected to the carbons lie in the same plane as the carbons.
What is the purpose of helicase in DNA replication?
What is the purpose of helicase in DNA replication?
What is the result of the process of semiconservative replication?
What is the result of the process of semiconservative replication?
What is the function of DNA ligase in DNA replication?
What is the function of DNA ligase in DNA replication?
What is the characteristic of the double helix structure of DNA?
What is the characteristic of the double helix structure of DNA?
What is the rule of complementary base pairing in DNA?
What is the rule of complementary base pairing in DNA?
What is the primary function of antibodies in the humoral immune response?
What is the primary function of antibodies in the humoral immune response?
What is the term for the process by which the immune system learns to recognize and respond to a particular antigen?
What is the term for the process by which the immune system learns to recognize and respond to a particular antigen?
Which type of immune response is characterized by the activation of specialized T cells that destroy affected host cells?
Which type of immune response is characterized by the activation of specialized T cells that destroy affected host cells?
What is the term for the molecules that can trigger an immune response by binding to receptors on the surface of immune cells?
What is the term for the molecules that can trigger an immune response by binding to receptors on the surface of immune cells?
Which type of immune cells mature in the thymus and are responsible for the cell-mediated immune response?
Which type of immune cells mature in the thymus and are responsible for the cell-mediated immune response?
What is the primary function of the immune system's ability to distinguish between 'self' and 'nonself' molecules?
What is the primary function of the immune system's ability to distinguish between 'self' and 'nonself' molecules?
What is the main characteristic of active immunity?
What is the main characteristic of active immunity?
What is the primary function of antibodies transferred from the mother to the newborn?
What is the primary function of antibodies transferred from the mother to the newborn?
What is the result of an immune system that cannot distinguish self from non-self?
What is the result of an immune system that cannot distinguish self from non-self?
What is the term for an exaggerated immune response to substances that are normally harmless?
What is the term for an exaggerated immune response to substances that are normally harmless?
What is the purpose of injections of gamma globulins in patients unexpectedly exposed to an infectious disease?
What is the purpose of injections of gamma globulins in patients unexpectedly exposed to an infectious disease?
What is the result of histamine release by mast cells during an inflammatory response?
What is the result of histamine release by mast cells during an inflammatory response?
What is the primary function of neutrophils in the inflammatory response?
What is the primary function of neutrophils in the inflammatory response?
What is the key characteristic of Natural Killer cells in the immune response?
What is the key characteristic of Natural Killer cells in the immune response?
What is the key characteristic of adaptive immunity?
What is the key characteristic of adaptive immunity?
What is the result of adaptive immunity in terms of immunity?
What is the result of adaptive immunity in terms of immunity?
What is the key difference between Natural Killer cells and T-cells?
What is the key difference between Natural Killer cells and T-cells?
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