What statement does NOT correctly describe antidiuretic hormone?
A. It ultimately acts to reabsorb more water.
B. It inhibits the synthesis of aquaporins.
C. ADH secretion is stimulated by high blood osmolarity.
D. It binds to membrane receptors of cells in the mammalian kidneys.
E. Damage to the posterior pituitary will decrease the production of ADH.
Answer: B
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The plane in which cytoplasmic division will occur in a plant cell is marked by a(n) ________
a. cleavage furrow b. actin-free zone c. contractile ring d. cell plate
What is the Allee effect?
A. when fitness increases independently of population size B. when fitness and growth rates increase with decreasing population size C. when fitness and growth rates increase with increasing population size D. when growth rates increase independently of population size
As the size of a cell decreases, the ratio of its surface area to volume:
a. increases b. decreases c. stays the same
Do passive ways of crossing a plasma membrane require an expenditure of chemical energy (ATP)?
What will be an ideal response?