Which statement best describes the function of NADH and FADH2?
a. Both produce ATP by substrate-level phosphorylation.
b. Both transport acetyl-CoA to mitochondria.
c. Both provide electrons to the electron transfer system.
d. Both release energy for glycolysis to proceed.
Ans: c. Both provide electrons to the electron transfer system.
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To what do transcription factors attach?
a. promoters b. stop codons c. start codons d. polyA tails e. introns
One of your best friends loves to run long distances. You ask her what she enjoys about running. In addition to good physical fitness, she tells you that after a run she feels extra happy
You suspect that her joy might be related to increased production of ________ by the anterior pituitary gland. A) endorphins B) releasing hormones C) prolactin D) adrenalin
Penicillin leaves the blood plasma through tubular walls and not through the glomerulus. Therefore, penicillin is removed from the blood by the process of
A. glomerular filtration. B. osmosis. C. diffusion. D. tubular reabsorption. E. tubular secretion.
Fire is increasingly used as a management tool in both forest and grassland ecosystems to increase species diversity. How might fire influence the occurrence of a climax community and species diversity?
What will be an ideal response?