CF LL BIO HOW LIFE
CF LL BIO HOW LIFE
3rd Edition
ISBN: 9781319536404
Author: Morris
Publisher: MAC HIGHER
bartleby

Videos

Question
Book Icon
Chapter 39.3, Problem 9SAQ
Summary Introduction

To draw:

A mammalian nephron, label and describe the primary function of each part, and also show the direction of water and electrolyte in each part.

Introduction:

Nephron is the basic functional unit of kidneys. It helps in removal of metabolic wastes from the body. In addition to this, it also helps in maintaining the water and electrolytes balance in the body.

Expert Solution & Answer
Check Mark

Explanation of Solution

Pictorial representation:

CF LL BIO HOW LIFE, Chapter 39.3, Problem 9SAQ

Fig.1: A mammalian nephron.

A mammalian nephron consists of three parts, namely proximal convoluted tubules (PCT), loop of Henle and distal convoluted tubules (DCT). The proximal convoluted tubule is the most proximal part of the nephron that functions to reabsorb water, glucose, amino acids, and ions such as sodium and chloride from the filtrate produced in the glomerular capsule.

The loop of Henle is the next part of the nephron that lies between the proximal convoluted tubule and distal convoluted tubule. It can be divided into two parts, descending and ascending loop of Henle. The descending loop of Henle is permeable to water but impermeable to ions. On the other hand, the ascending loop of Henle is permeable to ions but impermeable to water. The loop of Henle creates an increasing concentration gradient from cortex to medulla of the kidneys to produce concentrated urine.

The third and last part of the nephron is the distal convoluted tubules. This part is associated with the active secretion of wastes such as ions ( K+ and HCO3- ), acids, drugs and toxins. Variable reabsorption of water and some ions also occur in this part under the influence of hormones.

Conclusion

A mammalian nephron comprises three parts, namely PCT, loop of Henle and DCT.

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
Humans consider themselves amazingly clever and innovative, constantly developing "new" ways of altering the world around us. As material consumption has increased, many have turned to the ideas of recycling and reuse as a means to minimize some negative aspects of our modern consumerism. Mother Nature though is the ultimate innovator and, more importantly, the ultimate recycler.
H gene assorts independently from the I gene. Both on autosomes. One man and one woman, both of HhIAIB genotype. Determine the blood type of progeny and fractions out of 16
Alleles at the P locus control seed color. Plants which are pp have white seeds, white flowers and no pigment in vegetative parts. Plants which are P_ have black seeds, purple flowers and may have varying degrees of pigment on stems and leaves. Seed color can be assessed, visually, based on if the seed is white or not white A gene for mold resistance has been reported and we want to determine its inheritance and whether it is linked to P. For the purposes of this exercise, we will assume that resistance is controlled by a single locus M, and M_ plants are resistant and mm plants are susceptible.  Resistance can be measured, under greenhouse conditions, 2 weeks after planting, by injecting each seedling with a spore suspension. After two weeks, the seedlings can be rated as resistant or susceptible, based on whether or not tissue is actively sporulating. For this exercise we will use seed and data from the F10 generation of a recombinant inbred population produced using single seed…
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 Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Excretory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=q5qaGHfdmYM;License: Standard youtube license