17. Under anaerobic conditions, what process provides energy for the cell?
a. Oxidative phosphorylation c. Lactolysis
b. Glycolysis d. Passive transport
ANS: B
Glycolysis produces a net of two molecules of ATP per gl
...
17. Under anaerobic conditions, what process provides energy for the cell?
a. Oxidative phosphorylation c. Lactolysis
b. Glycolysis d. Passive transport
ANS: B
Glycolysis produces a net of two molecules of ATP per glucose molecule through the process
of oxidation or the removal and transfer of a pair of electrons. The other options do not
correctly identify an anaerobic process that provides energy to the cell.
PTS: 1 REF: Page 28
18. What is the mechanism by which the energy produced from carbohydrates, proteins, and
lipids is transferred to adenosine triphosphate (ATP)?
a. Anaerobic glycolysis c. Oxidative phosphorylation
b. Oxidative cellular metabolism d. Tricarboxylic acid phosphorylation
ANS: C
Oxidative phosphorylation occurs in the mitochondria and is the mechanism by which the
energy produced from carbohydrates, fats, and proteins is transferred to ATP. The other
options do not correctly identify the mechanism described in the question.
PTS: 1 REF: Pages 27-28
19. Passive transport is best described with which statement?
a. Being driven by osmosis, hydrostatic pressure, and diffusion
b. Involving receptors that can bind with substances being transportedc. Being capable of transporting macromolecules
d. Requiring energy generated by the cell
ANS: A
Water and small electrically uncharged molecules move easily through pores in the plasma
membrane’s lipid bilayer. This process, called passive transport, naturally occurs through any
semipermeable barrier. It is driven by osmosis, hydrostatic pressure, and diffusion, all of
which depend on the laws of physics and do not require life. The other options do not
correctly describe passive transport.
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