In the TCA cycle, two carbons are removed from citric acid in the form of ________, thereby regenerating oxaloacetate to complete the cycle.
A. acetyl-CoA
B. methanol
C. carbon dioxide
D. ethanol
Answer: C
You might also like to view...
Mammals lose unwanted solutes through
a. urinary excretion only. b. respiration only. c. muscle contraction only. d. respiration and urinary excretion. e. lymph filtering only.
Keratitis is usually caused by ________.
A. Neisseria gonorrhoeae B. Staphylococcus aureus C. herpes simplex virus type 1 (HSV-1) D. Streptococcus pyogenes
The first land plants were restricted to moist, marshy environments because of
A) reproductive cell requirements. B) the need for stem support. C) the need for nutrients. D) sensitivity to sunlight. E) the lack of a cuticle.
Suppose you've assumed the following two data-generating processes: (1) Yi = f (Hi, Ji) and (2) Ji = g (Xi, Zi). What do these assumptions imply?
A. X has an indirect causal effect on J. B. J has a direct causal effect on H. C. Z has an indirect causal effect on Y. D. Z has a direct causal effect on Y.