The enzyme phosphofructokinase-1 (PFK-1) is thought of as a metabolic "valve" that regulates the rate of glycolysis. Which of the following correctly identifies its allosteric activators and inhibitors and their actions?
A. ADPâ€"activator; ATPâ€"activator
B. AMPâ€"activator; CoQâ€"inhibitor
C. ATPâ€"activator; AMPâ€"inhibitor
D. ADPâ€"activator; citrateâ€"inhibitor
E. CoQâ€"activator; citrateâ€"inhibitor
D
You might also like to view...
The specimens of choice for detecting nontuberculous mycobacterial disease are:
a. spontaneously produced sputa. b. gastric lavages. c. transtracheal aspirations. d. bronchial lavages, washings, and brush-ings.
Which vertebrate is a fish, has a cartilaginous skeleton, no jaws, and a tooth-covered tongue?
a. shark b. lamprey c. coelacanth d. goldfish e. lungfish
A flower forms from
a. an ovary tissue that migrates from the root. b. stem cells that form tumor like growths. c. impregnated pollen grains. d. a modified branch called a receptacle. e. bark tissue.
Endospores
A. are bacterial reproductive structures. B. may be produced when nutrients are scarce. C. are produced by bacteria, algae, and fungi. D. are resistant to everything except radiation. E. can last for only about 10 years.