Which of the following can be learned from a computer-based (computation) analysis of the amino acid sequence of a membrane protein, which can be readily deducted from the nucleotide sequence of its isolated gene?
a) its structure
b) both its structure and its orientation within the lipid bilayer
c) its orientation within the lipid bilayer
d) its population in each cell
e) its color
Ans: b) both its structure and its orientation within the lipid bilayer
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The optimal pH for enzyme 1 is:
a. 2. b. 3. c. 4. d. 5. e. 6.
The structure labeled "C" is the ____
a. trunk of the pulmonary arteries b. left atrium c. left ventricle d. right atrium e. right ventricle
An individual adaptive zone can be occupied by how many different species?
a. one b. two c. hundreds d. thousands e. an infinite number
Which of the following statements concerning enzymes is FALSE?
a. Each enzyme has an optimal temperature. b. Each enzyme has an optimal pH. c. Most enzymes are highly specific. d. Some enzymes require cofactors. e. Most enzymes are RNA molecules.