The aboral side of a radially symmetrical animal is:
A. the side containing the mouth
B. the side opposite the side containing the mouth
C. its outside
D. its inside
E. All of the other choices provided are incorrect
B. the side opposite the side containing the mouth
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Aerobic respiration, anaerobic glycolysis, and hydrolysis of phosphocreatine can all be used by vertebrate muscle cells to generate ATP during active periods. In what order are these mechanisms employed?
A. hydrolysis of phosphocreatine, anaerobic glycolysis, aerobic respiration B. hydrolysis of phosphocreatine, aerobic respiration, anaerobic glycolysis C. anaerobic glycolysis, aerobic respiration, hydrolysis of phosphocreatine D. anaerobic glycolysis, hydrolysis of phosphocreatine, aerobic respiration E. aerobic respiration, anaerobic glycolysis, hydrolysis of phosphocreatine
The accompanying figure is of one of the most poisonous mushrooms. Four of the following statements about this fungus are true. Which is the exception?
a. Its spores are created by mitosis. b. It is called the death cap. c. It is often mistaken for a puffball. d. It kills by causing liver and kidney failure. e. It is a club fungus.
Which of the following is not true of eukaryotic translation initiation?
A. All polypeptides synthesized by cytosolic ribosomes begin with a Met residue, not an fMet. B. A special initiator tRNA is utilized for initiation by cytosolic ribosomes. C. Polypeptides synthesized by mitochondrial ribosomes begin with fMet. D. The 40S ribosomal subunit binds the mRNAbefore any initiation factors.
A parasite is also a(n):
A. nitrogen fixer B. autotroph C. heterotroph D. methanogen E. mutualist