NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following organelles provides extra support for the cell, gives it shape, is mostly made up of cellulose, and found in plant cells?
A
endoplasmic reticulum
B
cell membrane
C
cell wall
D
nucleus
Explanation: 

Detailed explanation-1: -The cell wall is located outside the cell membrane. It consists mainly of cellulose and may also contain lignin, which makes it more rigid. The cell wall shapes, supports, and protects the cell.

Detailed explanation-2: -Plant cells contain vacuoles. In addition to storing wastes and water, the vacuole also helps to support the cell. This is because the liquid inside the vacuole exerts an outward pressure on the cell, much like the water inside a water balloon.

Detailed explanation-3: -The Cell Wall A cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. The cell wall contains not only cellulose and protein, but other polysaccharides as well. The cell wall provides structural support and protection.

Detailed explanation-4: -Answer and Explanation: The part of the animal cell that defines it’s shape is the plasma membrane. The plasma membrane is a barrier that separates the cell from the environment. Unlike plant cells, that have a rigid outer barrier, the plasma membrane in animal cells is flexible and moves with the cell.

There is 1 question to complete.