Phospholipids consist of a 3-carbon core to which fatty acids and a phosphate group are linked. The most common 3-carbon core is
a. dihydroxyacetone.
b. glyceraldehyde.
c. glycerol.
d. serine.
Ans: c. glycerol.
Biology & Microbiology
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The main class of neurotransmitters involved in regulating mood in vertebrate animals is/are
A. the biogenic amines. B. acetylcholine. C. amino acids. D. gases such as nitric oxide and carbon monoxide. E. acetylcholine and amino acids.
Biology & Microbiology
Which region(s) of the ribosome accept(s) charged tRNA molecules during the elongation phase of translation?
a. the A site b. the A site or the E site c. the P site d. the P site or the E site e. the E site
Biology & Microbiology
__________ secrete hormones into blood. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
__________ such as reptiles control core temperature mainly by behavior.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology