16. Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced

[answerhappygod]

16. Which of the following factors is the most likely
explanation for an energy deficit that results in exercise-induced
exhaustion?
A. Ineffective protein production
B. Insufficient mitochondrial function
C. Impaired urea elimination
D. Absence of oxygen transporters on the cell membrane
34. It has been hypothesized that chloroplasts
originated from photosynthetic cyanobacteria that became symbiotic
inside a host cell. Which of the following observations provides
the strongest evidence for this suggestion?
A. Microscopically, chloroplasts appear similar to
cyanobacteria
B. Chloroplast DNA shows clear similarities to cyanobacteria
C. Both chloroplasts and cynanobacteria are green and perform
photosynthesis
D. Photosynthesis cynanobacteria and fungi form a mutualistic
association in lichen
36. A student is assigned the task of measuring the mass
of one tennis ball using a scale for which the zero adjustment on
the balance is not working. The student is given three balls and
the can in which they were packaged. Which of the following
strategies will provide the best determination of the correct
mass?
A. Weigh each ball separately and average the results
B. Weigh the empty can; weigh the can with a ball in it; and
compute the difference between the two
C. Weigh the three balls together and divide by three
D. Weigh each ball separately, adjusting the beam weights from
below first and then from above. Then, average the results
51. Which of the following is the role of adenosine
triphosphate (ATP) in human cells?
A. Transporting chemical energy within cells for metabolism
B. Carrying enriched oxygen from the cell membrane to the cell
nucleus
C. Catalyzing the release of calcium in muscle cells
D. Preventing the reabsorption of CO2 during cell metabolism