The hormone ADH causes the reabsorption of water in the kidney by increasing the number of aquaporin water
channels in the plasma membrane of the collecting ducts.
Indicate whether the statement is true or false.
ANSWER: True
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You are a botanist who is immersed in your attempt to increase a certain property in your plant of study. To that end, you induce a mutation that doubles the amount of vascular cambium (a type of meristem) in your plant. Assuming this brings the desired effect, what exactly was the property that you sought to increase?
A. Production of new growth at the tip of stems. B. Production of secondary xylem and phloem. C. Production of only xylem to make wood. D. Production of bark only. E. Production of new leaves.
____ is one of the substances that maintains our blood pH between 7.35 and 7.45
a. Water b. Carbonic acid c. Hydrochloric acid d. Hydrogen peroxide e. Sodium hydroxide
The distribution of coral colonies is ____
a. clumped b. random c. uniform d. constant e. homogeneous
Water may be reabsorbed from many regions of the nephron; however, which regions can do so only if the blood levels of ADH are elevated?
A) Nephron loop and distal tubule B) Distal tubule and collecting duct C) Proximal and distal tubules D) Proximal tubule and nephron loop E) Glomerulus and the glomerular capsule