Chapter 7.4, Problem 5MI

Summary Introduction

To fill:

The concept map with appropriate words to summarize the relationship between the plasma membrane and water.

Introduction:

The cell membrane is selectively permeable. It has control over what molecules or ions can enter or leave the cell. The movement of molecules from an area of higher concentration to an area of lower concentration and osmosis is the special type diffusion of water across a selectively permeable membrane.

Answer to Problem 5MI

The concept map with appropriate words given in the table:

S.No.	Correct words
1	in and out of the membrane
2	Create
3	Maintain
4	Regulation of the cell’s internal environment
5	Diffusion of water across the membrane.

Explanation of Solution

Cellular transport is the movement of substances across the plasma or cell membrane either into or out of the cell. The plasma membrane is semi-permeable. It allows some things to pass through them but prevents other things from passing through. The selective nature of the cell membrane is to regulate the passage of materials into and out of the cell. The cell membrane most often works specifically on the concentration of water and different types of ions. The cell through its membrane maintains its internal environment, which called as homeostasis.