/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 6 Antidiuretic hormone promotes th... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 17: Problem 6

Antidiuretic hormone promotes the retention of water by stimulating a. the active transport of water. b. the active transport of chloride. c. the active transport of sodium. d. the permeability of the collecting duct to water.

Short Answer

Expert verified
The correct answer is \(d \text{. the permeability of the collecting duct to water.}\) Antidiuretic hormone (ADH) promotes the retention of water by increasing the permeability of the collecting duct, allowing more water to be reabsorbed through osmosis.

Step by step solution

01

Understand the function of the antidiuretic hormone (ADH)

Antidiuretic hormone, also known as vasopressin, is produced by the hypothalamus and released by the posterior pituitary gland. Its primary function is to control water balance in the body by regulating the amount of water reabsorbed by the kidneys. When the body needs to conserve water, ADH secretion is increased, and when the body needs to get rid of excess water, ADH secretion is decreased.
02

Identify the target site of ADH in the nephron

The nephron is the basic functional unit of the kidney that filters waste products from the blood and forms urine. The nephron is divided into several parts, including the glomerulus, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct. ADH mainly acts on the collecting ducts of the nephron.
03

Understand the effect of ADH on the collecting duct

When ADH levels are high, it stimulates an increase in the permeability of the walls of the collecting ducts, allowing more water to be reabsorbed from the filtrate back into the bloodstream. The reabsorption occurs through the process of osmosis, a passive movement of water molecules across a semi-permeable membrane down the concentration gradient.
04

Determine the correct answer based on the understanding of ADH's function

Based on the information provided on ADH's function and its target site of action, ADH promotes the retention of water by: a. the active transport of water. (Incorrect, as ADH doesn't use active transport for water reabsorption.) b. the active transport of chloride. (Incorrect, as ADH doesn't directly affect chloride transport.) c. the active transport of sodium. (Incorrect, as ADH doesn't directly affect sodium transport.) d. the permeability of the collecting duct to water. (Correct, as ADH increases the permeability of the collecting duct allowing water reabsorption through osmosis.) So, the correct answer is \(d \text{. the permeability of the collecting duct to water.}\)

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Explain how countercurrent exchange occurs in the vasa recta and discuss the functional significance of this mechanism.

2\. Active transport of sodium; water follows passively a. Proximal tubule b. Descending limb of loop c. Ascending limb of loop d. Distal tubule e. Medullary collecting duct

Explain how filtration, secretion, and reabsorption affect the renal plasma clearance of a substance. Use this information to explain how creatinine can be used to measure the GFR.

3\. Active transport of sodium; impermeable to water a. Proximal tubule b. Descending limb of loop c. Ascending limb of loop d. Distal tubule e. Medullary collecting duct

Describe the location of the macula densa and explain its role in the regulation of renin secretion and in tubuloglomerular feedback.
See all solutions

Recommended explanations on Biology Textbooks

Control of Gene Expression

Read Explanation

Cells

Read Explanation

Astrobiological Science

Read Explanation

Biological Molecules

Read Explanation

Bioenergetics

Read Explanation

Biological Organisms

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.