One important regulation point in the aerobic respiration of mammals occurs in glycolysis at the site of
the enzyme phosphofructokinase, which is:
a. inhibited by high levels of ATP.
b. inhibited by low levels of ATP.
c. inhibited by high levels of AMP.
d. activated by the presence of O2.
e. activated by the introduction of glucose
A
You might also like to view...
The tough outer covering of the eye is referred to as the
A. pupil. B. retina. C. sclera. D. fovea. E. iris.
All of the following statements about the periplasmic space are true except:
A. It contains hydrolytic enzymes and binding proteins involved in nutrient acquisition. B. It is located between the plasma membrane and outer membrane of gram-negative bacteria. C. It is found only in gram-positive bacteria. D. All of the choices are true.
As food moves into the small intestines, intestinal cells release which hormone to promote insulin secretion?
a. gastrin b. somatostatin c. CCK d. secretin e. GIP
An organism is discovered that thrives in both the presence and absence of oxygen in the air. Curiously, the consumption of sugar increases as oxygen is removed from the organism's environment, even though the organism does not gain much weight
This organism _____. A) is a normal eukaryotic organism B) is photosynthetic C) is an anaerobic organism D) is a facultative anaerobe