Life: The Science of Biology
Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
bartleby

Videos

Question
Book Icon
Chapter 51, Problem 1Q
Summary Introduction

To review:

The relative medullary thickness (RMT) is a good predictor to determine an animal’s ability to produce concentrated urine or not, based on an RMT vs freezing point depression (FPD) plot.

Given:

The RMT and the FPD for different mammals are given in the Table 1:

Table 1: The RMT and FPD of different mammals.

Animal RMT FPD (ᵒC)
Beaver 1.3 0.96
Pig 1.6 2
Human 3 2.6
Dog 4.3 4.85
Cat 4.8 5.8
Lab rat 5.8 4.85
Kangaroo rat 8.5 10.4
Jerboa 9.3 12
Sand rat 10.7 9.2

Introduction:

RMT refers to the thickness of medulla of the kidney divided by volume (length X width X thickness) of the entire kidney. FPD is a test, which is used to measure the concentration of urine. It is known that fresh water freezes at 0°C, but the addition of solutes lowers this freezing temperature.

Expert Solution & Answer
Check Mark

Explanation of Solution

The graph plot between RMT and FPD is given in the Figure 1.

Life: The Science of Biology, Chapter 51, Problem 1Q

Figure 1: Plot of RMT vs FPD.

It can be observed from the graph that as the RMT increases, the FPD also increases. This means that the concentration of the urine increases with an increase in relative length of loops of Henle. The graph follows an almost linearly increasing trend.

A slight deviation from the trend is observed in case of the laboratory rat and the sand rat.

Conclusion

Therefore, it can be concluded that the RMT is a good predictor of the ability of the mammal to produce concentrated urine.

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
8. Aerobic respiration of a 5 mM solution of tripeptide that is composed of the following three amino acids; alanine, leucine and isoleucine. Alanine breaks down to pyruvate, leucine breaks down to Acetyl-CoA and isoleucine breaks down to succinyl-CoA. Alanine NADH FADH2 OP ATP SLP ATP Total ATP Leucine Isoleucine Totals Show your work using dimensional analysis here: 4
9. Aerobic respiration of one lipid molecule. The lipid is composed of one glycerol molecule connected to two fatty acid tails. One fatty acid is 12 carbons long and the other fatty acid is 18 carbons long in the figure below. Use the information below to determine how much ATP will be produced from the glycerol part of the lipid. Then, in part B, determine how much ATP is produced from the 2 fatty acids of the lipid. Finally put the NADH and ATP yields together from the glycerol and fatty acids (part A and B) to determine your total number of ATP produced per lipid. Assume no other carbon source is available. fatty acids glycerol 18 carbons 12 carbons 0=
influences of environment on the phenotype.
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
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Text book image
Curren'S Math For Meds: Dosages & Sol
Nursing
ISBN:9781305143531
Author:CURREN
Publisher:Cengage
Text book image
Case Studies In Health Information Management
Biology
ISBN:9781337676908
Author:SCHNERING
Publisher:Cengage
Text book image
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Text book image
Biomedical Instrumentation Systems
Chemistry
ISBN:9781133478294
Author:Chatterjee
Publisher:Cengage
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Complications during Labour and Delivery; Author: FirstCry Parenting;https://www.youtube.com/watch?v=QnCviG4GpYg;License: Standard YouTube License, CC-BY