Carrier proteins are often used by the cell to transport ____
a. H2O
b. proteins
c. amino acids
d. steroid hormones
e. CO2
ANSWER: c
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Macromolecules are broken down to monomers in ___
A. dehydration reactions. B. denaturation reactions. C. hydrolysis reactions. D. anabolic reactions.
In cases of the “winter blues” treatment with a bright
artificial light can reduce the effects by a. increasing thyroid gland activity. b. decreasing pineal gland activity. c. increasing gonadal output. d. pancreas reduction. e. kidney adrenal gland activation.
A woman with type B blood and a man with type A blood could have children with which of the following phenotypes?
a) O only b) AB or O c) A, B, or O d) A, B, AB, or O e) AB only
Which extinct hominin first appeared about 1.9 million years ago and had a larger brain than Homo habilis, its immediate predecessor?
A) Homo ergaster B) Homo neanderthalensis C) Homo sapiens D) Australopithecus