Chromosomes can be condensed into compact structures, visible with the light microscope, but usually only:
A. while the nuclear pores are open.
B. while the proteins are being assembled.
C. after the cell is dead.
D. while the DNA is being copied into RNA.
E. during cell division.
E
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a. 4-3-1-2 b. 4-3-2-1 c. 3-4-2-1 d. 3-4-2-1 e. 2-4-3-1
The cells of sprinters' muscles often use which process to form ATP?
a. aerobic respiration b. lactate fermentation c. pyruvate fermentation d. oxidative phosphorylation e. gluconeogenesis
When food distends the stomach, the hormone __________ is produced, which stimulates the gastric
glands. a. secretin b. gastrin c. cholecystokinin d. gastric inhibitory peptide e. lipoprotein lipase
What components do all cells possess?
What will be an ideal response?