Repressors
a. bind to operators.
b. lie between operators.
c. lie between promoters.
d. lie after operators.
e. are part of an operon.
A
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Most innate immune responses rely on
A. recognition of specific antigens. B. pathogens being engulfed and destroyed. C. plasma cells to secrete antibodies. D. IgM antibodies. E. clonal selection to replicate specific lymphocytes.
Which of the following is associated with “rest and digest”?
a. The sympathetic nervous system b. The peripheral nervous system c. The parasympathetic nervous system d. The autonomic nervous system
Cells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell (Zea mays) and a camel cell (Bactrianus ferus). What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?
A. The corn cells' have a small vacuole size because it does not need long term water and electrolyte storage. B. The camel cells' have a small vacuole size because it does not need long term water and electrolyte storage. C. The camel cells' have a small vacuole size because it is not in contact with toxins that need to be removed from the cell. D. The corn cells' have a large vacuole size because it is in contact with many toxins in the soil which need to be removed from the cell.
The TCA cycle begins when ________.
A. pyruvate from the glycolytic pathway is oxidized to acetyl-CoA, which is added to oxaloacetate B. NADH is oxidized to NAD+, which provides a source of electrons to drive the cycle C. pyruvate from the glycolytic pathway is added to oxaloacetate D. ATP from the glycolytic pathway is hydrolyzed, providing the energy to start the cycle