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).

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.
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?
Chapter 49 Solutions
BIOLOGY (LL)
- AaBbCc X AaBbCc individuals are crossed. What is the probability of their offspring having a genotype AABBCC?arrow_forwardcircle a nucleotide in the imagearrow_forward"One of the symmetry breaking events in mouse gastrulation requires the amplification of Nodal on the side of the embryo opposite to the Anterior Visceral Endoderm (AVE). Describe one way by which Nodal gets amplified in this region." My understanding of this is that there are a few ways nodal is amplified though I'm not sure if this is specifically occurs on the opposite side of the AVE. 1. pronodal cleaved by protease -> active nodal 2. Nodal -> BMP4 -> Wnt-> nodal 3. Nodal-> Nodal, Fox1 binding site 4. BMP4 on outside-> nodal Are all of these occuring opposite to AVE?arrow_forward
- If four babies are born on a given day What is the chance all four will be girls? Use genetics lawsarrow_forwardExplain each punnet square results (genotypes and probabilities)arrow_forwardGive the terminal regression line equation and R or R2 value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the first residual regression line equation and R or R2 value: Give the x axis (name and units, if any) of the first residual line : Give the y axis (name and units, if any) of the first residual line: Give the second residual regression line equation and R or R2 value: Give the x axis (name and units, if any) of the second residual line: Give the y axis (name and units, if any) of the second residual line: a) B1 Solution b) B2 c)hybrid rate constant (λ1) d)hybrid rate constant (λ2) e) ka f) t1/2,absorb g) t1/2, dist h) t1/2, elim i)apparent central compartment volume (V1,app) j) total AUC (short cut method) k) apparent volume of distribution based on AUC (VAUC,app) l)apparent clearance (CLapp) m) absolute bioavailability of oral route (need AUCiv…arrow_forward
- You inject morpholino oligonucleotides that inhibit the translation of follistatin, chordin, and noggin (FCN) at the 1 cell stage of a frog embryo. What is the effect on neurulation in the resulting embryo? Propose an experiment that would rescue an embryo injected with FCN morpholinos.arrow_forwardParticipants will be asked to create a meme regarding a topic relevant to the department of Geography, Geomatics, and Environmental Studies. Prompt: Using an online art style of your choice, please make a meme related to the study of Geography, Environment, or Geomatics.arrow_forwardPlekhg5 functions in bottle cell formation, and Shroom3 functions in neural plate closure, yet the phenotype of injecting mRNA of each into the animal pole of a fertilized egg is very similar. What is the phenotype, and why is the phenotype so similar? Is the phenotype going to be that there is a disruption of the formation of the neural tube for both of these because bottle cell formation is necessary for the neural plate to fold in forming the neural tube and Shroom3 is further needed to close the neural plate? So since both Plekhg5 and Shroom3 are used in forming the neural tube, injecting the mRNA will just lead to neural tube deformity?arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageComprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning


