Shrinkage of the plasma membrane away from the cell wall when the bacterium is placed in a hypertonic environment is called ________.
A. hypertonolysis
B. osmolysis
C. plasmolysis
D. hydrolysis
Answer: C
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Where are sugars formed in the chloroplasts?
a. on the outer membrane b. on the inner membrane c. in the thylakoid compartment d. in the stroma e. within the thylakoid membrane
A major function of keratin is to:
a. absorb UV radiation. b. insulate the body. c. nourish sensory receptors. d. synthesize fats and waxes. e. create a diffusion barrier.
During translation, which one of the following is required for translocation of the ribosome along the mRNA?
a. tRNA synthetase b. a translation initiation factor c. translation elongation factor EF-Tu d. translation elongation factor EF-G
Which of the following is true concerning a somatic cell mutation?
A. All of the gametes carry the mutation. B. A small fraction of the gametes carry the mutation. C. All cells within the organism are affected by the mutation. D. Half of the gametes carry the mutation. E. Only a small group of cells within the organism is affected by the mutation.