A ) What are the similarities between facilitated diffusion and active transport? B) What are the differences?
A ) Both processes use carrier proteins and exhibit saturation. B) Facilitated diffusion is driven by a concentration gradient, does not consume ATP, and so is "passive," whereas active transport is active, consumes ATP, and moves a substance up its concentration gradient.
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The concentration of a hormone in the blood can affect the number of receptors for that hormone on or in a target cell.
Answer the following statement true (T) or false (F)
The term "retroperitoneal" may be used to describe the location of certain abdominal organs. This means that such organs are located
A. between the visceral and parietal layers of the peritoneum. B. posterior to the parietal peritoneum. C. in the peritoneal cavity. D. between folds of the parietal peritoneum. E. deep to the visceral peritoneum.
The _______ comprises the bulk of the mature adult brain.
A) cerebellum B) cerebrum C) medulla oblongata D) pons
Which of the following activities or sensations is not monitored by interoceptors?
A) sight B) joint movement C) activities of the digestive system D) cardiovascular activities E) urinary activities