Which amino acid(s) is/are found only in the cell walls of bacteria?
A.
Glycerol
B. L-form of glycine
C.
Diaminopimelic acid
D. L-form of methionine
E. L-form of glycine AND L-form of methionine
C
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A drug that interferes with the development and function of microtubules would interfere with
A) G0 phase of the cell cycle. B) metaphase and anaphase of mitosis. C) S phase of the cell cycle. D) DNA replication. E) G1 phase of the cell cycle.
Which of these statements is false about Ecstasy’s
active ingredient? a. It is a type of amphetamine. b. It causes a surge of serotonin release from brain neurons. c. It disrupts homeostatic pathways that control temperature and blood pressure. d. It is a hallucinogen. e. It causes target cells to be overstimulated.
The _________ membranes stack up to form the ________ of the chloroplast.
A. cristae, grana B. thylakoids, grana C. ER, thylakoids D. Golgi, ER
An accident victim receives a blood transfusion. Shortly thereafter, he begins to have difficulty breathing, develops a fever, and experiences nausea and vomiting. Which of the following is the most likely interpretation of these events?
A) the blood transfusion was mismatched. B) the blood transfusion contained pyrogens. C) the recipient had previously been exposed to foreign blood group antigens. D) the blood transfusion was mismatched and contained pyrogens. E) the blood transfusion was mismatched and the recipient had previously been exposed to the foreign blood group antigens.