Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
In figure 4-7 why does facilitated diffusion have a maximum rate of diffusion?


Transcribed Image Text:Rate of diffusion
I| IINN
Chapter 4 Transport of Substances Through Cell Membranes
Simple diffusion
V
max
Facilitated
diffusion
Concentration of substance
Figure 4-7 Effect of concentration of a substance on rate of diffu-
sion through a membrane by simple diffusion and facilitated diffu-
sion. This shows that facilitated diffusion approaches a maximum
rate called the V
max
Expert Solution

Step 1
In facilitated diffusion, transport of substances across a biological membrane takes place which occurs through a concentration gradient with the help of carrier molecule. Facilitated diffusion shows maximum rate of diffusion.
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