Prions are
A) improperly folded proteins.
B) viral protein coats.
C) sexually transmitted bacteria.
D) also known as viroids.
E) bacterial proteins.
A
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Muscle samples are taken from two groups of men. One group performs regular intense aerobic exercise. The second group is sedentary and does not exercise. When you compare their muscle samples at the microscopic level, you expect to find that the exercising men show increases in
A. Golgi apparatus. B. capillary density. C. smooth endoplasmic reticulum. D. mitochondria. E. mitochondria and capillary density.
Which of these membrane transport processes does not require membrane proteins?
A. osmosis B. facilitated diffusion C. active transport pumps D. endocytosis E. All of the answer choices are correct.
The enzyme permease cleaves the linkage between glucose and galactose residues in lactose
Indicate whether the statement is true or false
The graph in the accompanying figure represents the:a
electromagnetic spectrum b. action spectrum of photosynthesis c. process of cyclic electron transport d. process of noncyclic electron transport e. absorption spectra for chlorophylls a and b