Organic compounds
A) always contain nitrogen.
B) are synthesized only by animal cells.
C) always contain carbon.
D) always contain oxygen.
Answer: C
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Chemotherapeutic agents that are artificially produced are most specifically referred to as ________.
A. antimicrobial agents B. synthetic drugs C. semisynthetic drugs D. antibiotics
The graph below represents the results of an experiment looking at mate preference in female
black widowbirds. The researcher used three groups of male birds: one with artificially
shortened tails, one with artificially lengthened tails, and the control group with unaltered tail
lengths.
Which of the following is NOT TRUE of photolysis?
a. It is a function of the cyclic pathway. b. It involves photosystem II. c. It occurs in the light-dependent reactions. d. It is the source of oxygen in photosynthesis. e. It directly replaces electrons lost by p680.
Which of the following is not a function of the release factors of bacterial translation termination?
A. mediating the hydrolysis of the terminal peptidyl-tRNA bond B. assisting in the initial folding of the nascent polypeptide chain C. releasing the last uncharged tRNA from the P site D. recognition of a stop codon