GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a cell membrane?
A
it protects the cell
B
it protects the box
C
it protects the bees
D
it protects the animal
Explanation: 

Detailed explanation-1: -The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Detailed explanation-2: -The cell membrane, also known as the plasma membrane, is a double layer of lipids and proteins that surrounds a cell and separates the cytoplasm (the contents of the cell) from its surrounding environment. It is selectively permeable, which means that it only lets certain molecules enter and exit.

Detailed explanation-3: -Most plasma membranes consist of approximately 50% lipid and 50% protein by weight, with the carbohydrate portions of glycolipids and glycoproteins constituting 5 to 10% of the membrane mass.

Detailed explanation-4: -Role of Phospholipids As previously mentioned, phospholipids play a critical role in insulating cell membranes. Two of the most important outer and inner leaflet phospholipids are phosphatidylcholine (PC) and Phosphatidylserine (PS).

There is 1 question to complete.