A period of adjustment is required when moving from a dark room into bright light because
A) the breakdown of rhodopsin to opsin occurs slowly.
B) the lens requires time to accommodate dim light.
C) rods exposed to strong light need time to regenerate rhodopsin.
D) rhodopsin does not function in dim light.
E) only cones function in dim light.
C
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The testicular cells that construct the blood-testis barrier are the ________.
A) spermatocytes B) spermatogonia C) sustentacular cells D) interstitial cells
Adiponectin is
A) a hormone made in fat tissue and secreted into the circulation, where it affects the response to insulin. B) a hormone secreted into the stomach lining that enhances appetite. C) a hormone made in the hypothalamus that decreases appetite after a fatty meal. D) a nutrient that causes weight gain.
The spinocerebellar tract would carry information from sensory receptors to the cerebral cortex.
Answer the following statement true (T) or false (F)
what occurs during the G1 phase of the cell cycle?
a) the cell synthesizes proteins, grows and accumulates the materials needed to replicate its DNA in the next phase b) the cell synthesizes enzymes that control cell division and also checks and repairs the newly copied DNA c) the cell leaves the cell cycle and ceases to divide d) the cell makes a duplicate copy of its centrioles and all of its nuclear DNA e) the nucleus divides