GENERAL HISTOLOGY

INTRODUCTION

MICROSCOPE PARTS MAGNIFICATION RESOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does selectively-permeable mean?
A
The cell controls what passes in and out of the cell
B
Nothing gets through
C
The cell lets only large substances through
D
None of the above
Explanation: 

Detailed explanation-1: -Selective permeability of the cell membrane refers to its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others. Some of this selective property stems from the intrinsic diffusion rates for different molecules across a membrane.

Detailed explanation-2: -The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.

Detailed explanation-3: -The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Detailed explanation-4: -The plasma membrane is called as selectively permeable membrane because it regulates the movement of substances in and out of the cell. It means that the plasma membrane allows some material to pass through it while at the same time it blocks other material from entering through it.

Detailed explanation-5: -Selectively permeable membrane is the one which allows entry of certain substances, exit of some substances but prevents the passage of other substances, through it.

There is 1 question to complete.