If oxygen is unavailable, predict what happens to the citric acid cycle
A. It stops because the supplies of NAD+ and
FAD become depleted.
B. It stops because ADP levels increase in
the absence of oxygen.
C. It continues because none of the reactions
in the citric acid cycle require oxygen.
D. It continues because ATP levels are low,
and low ATP activates enzymes of the cycle.
A
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Diapedesis is the movement of white blood cells through intact blood vessel walls into surrounding body tissue. It typically happens when an area of the body is injured or damaged, and an inflammation response is required. What role would you expect cell adhesion molecules to play in this process?
A. Cell adhesion molecules will allow the white blood cells to cling to one another to form a migrating clot. B. Cell adhesion molecules help white blood cells adhere to the blood vessel wall so that they can migrate across the wall and infiltrate into the underlying tissue. C. Cell adhesion molecules will allow the white blood cells to attach to the injured area so they become immobile.
If a father and a son are both color blind and the mother is normal, is it likely that the son inherited color blindness
from his father? What will be an ideal response?
What is required for DNA polymerase to initiate DNA strand synthesis?
A) a short DNA primer synthesized by the enzyme primase B) a short RNA primer synthesized by the enzyme primase C) ATP and a short DNA primer synthesized by the enzyme topoisomerase D) ATP and a short RNA primer synthesized by the enzyme topoisomerase E) DNA polymerase initiates DNA strand synthesis without requiring any additional enzymes.
List the characteristics of the following groups and identify examples for each: Archaea, Bacteria, and Eukarya. What will be an ideal response?