NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a plant cell, the ____ acts like the Great Wall of China, because it protects and supports the cell.
A
cell wall
B
cell membrane
C
cytoplasm
D
mitochondria
Explanation: 

Detailed explanation-1: -Plant cells are surrounded by a tough extracellular matrix in the form of a cell wall, which is responsible for many of the unique features of a plant’s life style.

Detailed explanation-2: -Plant cells have a cell wall. The cell wall provides strength and support to the plant, much like the exoskeleton of an insect or spider. Our skeletons are inside our bodies, rather than on the outside like insects or spiders. The plant cell wall is mainly made up of the carbohydrates molecules cellulose and lignin.

Detailed explanation-3: -Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules.

Detailed explanation-4: -The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.

There is 1 question to complete.