BIOLOGY-TEXT
BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
bartleby

Videos

Question
Book Icon
Chapter 49, Problem 1TY
Summary Introduction

Introduction: Antidiuretic hormone (ADH) is also called vasopressin. ADH play role in controlling the amount of water that is resorbed into the blood. The rate at which the glomerulus forms the filtrate is called the glomerular filtration rate (GFR).

Expert Solution & Answer
Check Mark

Answer to Problem 1TY

Correct answer: If a person drinks excess water, the concentration of ADH in the blood would decrease and GFR would increase. Hence, the correct answer is option e.

Explanation of Solution

Reason for correct answer:

On drinking excess water, there will be an increase in the glomerular filtration rate. This occurs due to an increase in the hydrostatic pressure in the capillaries. If a person drinks excess water, ADH will not be secreted in blood; rather the body of the person will try to remove excess water by decreasing ADH to reduce water resorption.

Option e. is given as “Both b and d would occur”.

If a person consumes excess water, ADH concentration in the blood would decrease and GFR would increase. Hence, the correct answer is option e.

Reasons for incorrect answer:

Option a. is given as, “The GFR would decrease”.

When water consumed by a person is excess, glomerular filtration rate will increase due to an increase in the hydrostatic pressure. Hence, option a. is incorrect.

Option b. is given as, “The concentration of ADH in the blood would decrease”.

ADH increases resorption of water from the distal convoluted tubule into the circulatory fluid. If a person drinks excess water, ADH will not be secreted in blood; rather the body of the person will try to remove excess water by decreasing ADH to reduce water resorption. In such a case, excess urine will also be produced due to an increased GFR. Hence, option b. is incorrect.

Option c. is given as, “The concentration of ADH in the blood would increase”.

ADH helps in the resorption of water. Increase in the level of ADH is seen when a person faces dehydration and not when a person has consumed an excess of water. Hence, option c. is incorrect.

Option d. is given as, “GFR would increase”.

On drinking excess water, the hydrostatic pressure in the capillaries will increase. This will lead to an increase in the glomerular filtration rate. In such a case, excess urine will be produced due to an increased GFR. The body will also try to remove excess water by decreasing ADH, thereby reducing water resorption Hence, option d. is incorrect.

Hence, the options a., b., c. and d. are incorrect.

Conclusion

On drinking too much water, the ADH levels will decrease in the blood and urine formation will be higher due to an increase in the GFR.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Answer number seven do what it says.
Which of the following is the process that is "capable of destroying all forms of microbial life"? Question 37 options: Surgical scrub Sterilization Chemical removal Mechanical removal
After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)   Data Table 1Stage    Totals    PercentInterphase        Mitosis:        Prophase        Metaphase        Anaphase        Telophase        Cytokinesis        Totals    100    100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Body Structures & Functions
Biology
ISBN:9781285695495
Author:Scott
Publisher:Cengage
Text book image
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Excretory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=q5qaGHfdmYM;License: Standard youtube license