BIO 210 final exam
Study online at https://quizlet.com/_96q3r9
1. Hydrogen bonds form between molecules containing _________ bonds; the
hydrogen bond is between a hydrogen atom of one molecule and a partially
_________ charged atom of another.: polar covalent; negatively
2. Surfactant is necessary to prevent collapse of the alveoli in the lung be-
cause in its absence water molecules: are more strongly attracted to each other
by cohesive forces.
3. Given that the mass of an oxygen atom is 16 amu and that of a hydrogen
atom is 1 amu, 1 mole of water would be equal to: 18 grams
4. An emulsion is classified as a specific type of: colloid
5. For every atom of carbon in a carbohydrate: there are approximately two
atoms of hydrogen.
6. Which of the following choices lists the order of stages of cellular respi-
ration in proper order?: Glycolysis, intermediate stage, citric acid cycle, and the
electron transport system
7. Pyruvate dehydrogenase is located in the: matrix of the mitochondrion.
8. Phosphorylation is carried out by a: kinase, and it may activate some enzymes
and inhibit others.
9. Enzyme regulation by negative feedback involves: allosteric inhibition of an
enzyme by a product of its metabolic pathway.
10. The total number of ATP generated by the breakdown of glucose is 38, but
the net number of ATP generated is: 30
11. Fatty acids enter the cell respiration pathway at: the citric acid cycle, once
they have been converted to acetyl CoA.
12. Hexokinase is an enzyme involved in cellular respiration and its substrate
is glucose. Considering this information, hexokinase must be located: in the
cytosol of cells.
13. The reaction in which water and carbon dioxide combine to form carbonic
acid is: reversible, and can proceed in either direction depending on the concentra-
tions of the molecules.
14. The coenzymes that will provide the electrons needed for the electron
transport system are: NADH and FADH2.
15. A fever of 101°F causes most enzymes in the human body: to be more
flexible and efficient.
16. The sodium level inside and outside of a resting cell is an example of
the: potential energy of a concentration gradient, because sodium is more abundant
outside the cell.
17. The optimal pH range for most human enzymes is: 6-8
18. The term "metabolism" refers to: all chemical reactions in the body
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Study online at https://quizlet.com/_96q3r9
1. Hydrogen bonds form between molecules containing _________ bonds; the
hydrogen bond is between a hydrogen atom of one molecule and a partially
_________ charged atom of another.: polar covalent; negatively
2. Surfactant is necessary to prevent collapse of the alveoli in the lung be-
cause in its absence water molecules: are more strongly attracted to each other
by cohesive forces.
3. Given that the mass of an oxygen atom is 16 amu and that of a hydrogen
atom is 1 amu, 1 mole of water would be equal to: 18 grams
4. An emulsion is classified as a specific type of: colloid
5. For every atom of carbon in a carbohydrate: there are approximately two
atoms of hydrogen.
6. Which of the following choices lists the order of stages of cellular respi-
ration in proper order?: Glycolysis, intermediate stage, citric acid cycle, and the
electron transport system
7. Pyruvate dehydrogenase is located in the: matrix of the mitochondrion.
8. Phosphorylation is carried out by a: kinase, and it may activate some enzymes
and inhibit others.
9. Enzyme regulation by negative feedback involves: allosteric inhibition of an
enzyme by a product of its metabolic pathway.
10. The total number of ATP generated by the breakdown of glucose is 38, but
the net number of ATP generated is: 30
11. Fatty acids enter the cell respiration pathway at: the citric acid cycle, once
they have been converted to acetyl CoA.
12. Hexokinase is an enzyme involved in cellular respiration and its substrate
is glucose. Considering this information, hexokinase must be located: in the
cytosol of cells.
13. The reaction in which water and carbon dioxide combine to form carbonic
acid is: reversible, and can proceed in either direction depending on the concentra-
tions of the molecules.
14. The coenzymes that will provide the electrons needed for the electron
transport system are: NADH and FADH2.
15. A fever of 101°F causes most enzymes in the human body: to be more
flexible and efficient.
16. The sodium level inside and outside of a resting cell is an example of
the: potential energy of a concentration gradient, because sodium is more abundant
outside the cell.
17. The optimal pH range for most human enzymes is: 6-8
18. The term "metabolism" refers to: all chemical reactions in the body
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