The first step in wound healing is ____
a. formation of an embolus
b. platelet aggregation
c. vessel spasm
d. fibrinogen formation
e. formation of a blood clot
ANSWER: b
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Phenolics act on microbes by
A) Dissolving membrane lipids B) Denaturing proteins and disrupting cell membranes C) Oxidizing cellular constituents D) Precipitate cell proteins
You have a friend who lost 7 kg (about 15 pounds) of fat on a "low carb" diet. How did the fat leave her body?
A) It was released as CO2 and H2O. B) Chemical energy was converted to heat and then released. C) It was converted to ATP, which weighs much less than fat. D) It was broken down to amino acids and eliminated from the body. E) It was converted to urine and eliminated from the body.
The process of gene expression includes two steps: ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).
Caenorhabditis elegans is a nematode. During its development, it produces more than 1000 cells. However, the adult worm has only 959 somatic cells. The process by which 131 cells are specifically targeted for destruction is called______________
(a) directed cell pruning. (b) programmed cell death. (c) autophagy. (d) necrosis.