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PART A By the time the filtrate reaches the loop of Henle, the reabsorption of water...

PART A

By the time the filtrate reaches the loop of Henle, the reabsorption of water and ions has

removed all of the potassium from the filtrate.
left the filtrate iso-osmotic.
removed all of the sodium from the filtrate.
left the filtrate hypoosmotic.

left the filtrate hyperosmotic

PART B

Renin cleaves off several amino acids of __________, converting it to __________.

angiotensinogen; angiotensin II
angiotensinogen; angiotensin I
angiotensin-converting enzyme (ACE); angiotensin

angiotensin I; angiotensin II
PART C

Which of the following is NOT one of the functions of angiotensin II?

Angiotensin II stimulates the secretion of atrial natriuretic peptide (ANP) by cells of the atria of the heart.
Angiotensin II stimulates ADH secretion.
Angiotensin II stimulates the secretion of aldosterone.

Angiotensin II stimulates vasoconstriction.

PART D

The hydrogen ion concentration or pH of arterial blood is regulated by the combined actions of the __________ and __________._.

kidneys : buffer systems
kidneys : lymphatic system
lungs: buffer systems
lungs : kidneys

kidneys : cardiovascular system

PART E

In the proximal tubule, hydrogen ions are transported into the filtrate by

Na+/H+countertransporters only.
H+ primary active transporters only.
H+/CI- cotransporters only.
both Na+/H+ countertransporters and H+ primary active transporters.
both Na+/H+ countertransporters and H+/CI- cotransporters.
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Answer #1

Part A

The answer is:  left the filtrate iso-osmotic.

By the time the filtrate reaches the loop of Henle, the reabsorption of water and ions has eft the filtrate iso-osmotic.

Part B

The answer is: angiotensinogen; angiotensin I

Renin cleaves off several amino acids of angiotensinogen, converting it to angiotensin I.

Part C

The answer is: Angiotensin II stimulates the secretion of atrial natriuretic peptide (ANP) by cells of the atria of the heart.

Other statements describe function of angiotensin II.

Part D

The answer is: lungs : kidneys

The hydrogen ion concentration or pH of arterial blood is regulated by the combined actions of the lungs and kidneys.

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