Answered: In 2-3 sentences, summarize the spatial…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question

In 2-3 sentences, summarize the spatial distribution of different types of structural lipids within cells. Of the types discussed in class, which are predominantly found on the outer leaflet of the plasma membrane, and which are more likely to be found on the interior of the cell? In your explanation, suggest a reason for this distribution.

Expert Solution

Step 1

Structure:

A plasma membrane is a boundary that separates living cells from their non-living surroundings.
It is approximately 8mm thick and composed chiefly of lipids and proteins. It surrounds the cells and controls the traffic in/out of the cell.
The membrane is semi-permeable and it enables the cells to maintain an internal environment different from the external environment.
Lipids are energy storage in the cell membrane and regulators of cell metabolism.