LS 7C Week 6.2 Clickr (Osmoregulation)

Carbonic anhydrase inhibitors are commonly prescribed to treat glaucoma. A side effect could be ___________ in stomach pH. A. An increase B. A decrease C. No change

A. An increase

Decreased Na+ in body fluids (Na+ depletion) __________ renin secretion A. Increases B. Decreases C. Has no effect on

A. Increases

Increased osmolarity of body fluids__________ ADH secretion A. Increases B. Decreases C. Has no effect on

A. Increases

When stomach acid reaches the duodenum, it triggers the release of bicarbonate ions, which increase the pH of the duodenum. This is an example of: A. Negative feedback B. Positive feedback C. Neither; this is not a feedback system

A. Negative feedback

ACE inhibitors are drugs that inhibit an enzyme called ACE that converts angiotensin I into angiotensin II. Treatment with an ACE inhibitor will cause blood pressure to _________. A. Increase B. Decrease C. Stay the same

B. Decrease

When the volume of blood passing through the kidney increases, renin production by the kidney will most likely _________. A. Increase B. Decrease C. Stay the same

B. Decrease

Increased ADH secretion__________ urine output A. Increases B. Decreases C. Has no effect on

B. Decreases

Antacids like pepto-bismal are commonly taken to increase the pH of the stomach. If you take an antacid with your meal, _____ secretin will be released by your duodenum compared with eating an identical meal without an antacid. A. More B. Less C. An equivalent amount of

B. Less

Secretin stimulates the release of bicarbonate ions into the duodenum, which neutralizes acidic chyme from the stomach. One consequence of neutralizing the pH in the intestine is that: A. Carbohydrates are not as easily broken down in this neutral environment B. Enzymes that catalyze the breakdown of carbohydrates are denatured C. Enzymes that catalyze the breakdown of carbohydrates are active D. The enzymatically catalyzed breakdown of carbohydrates that began in the stomach is halted in the duodenum

C. Enzymes that catalyze the breakdown of carbohydrates are active

Based on the diagram shown here, ______ concentration in the duodenum is homeostatically regulated. A. Bicarbonate B. Bile C. CCK D. H+ ion E. Secretin

D. H+ ion