In the visual pathway providing sensory action potentials to the brain, the first cells that are capable of initiating action potentials are:
A. cone cells.
B. rod cells.
C. lateral geniculate cells.
D. ganglion cells.
E. bipolar cells.
D
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One feature that helps provide fast energy to a muscle cell is the presence of granules containing the complex carbohydrate
A. hemoglobin. B. creatine phosphate. C. myoglobin. D. glycogen. E. nebulin.
How long after fertilization is a conceptus considered a fetus?
A. After 48 hours B. After 10 days C. After 8 weeks D. After 12 weeks E. After 5 months
What happens to glucose molecules if the carrier proteins for tubular reabsorption are saturated and have reached their transport maximum?
What will be an ideal response?
Nonessential amino acids:
a. are not used by the body b. can be made by the body from other substances c. are used only for catabolism d. are found only in plant proteins