Question

Plant cell wall is mainly composed of
A. Sugars
B. Cellulose
C. Proteins
D. Lipids

Answer 1

Hint: Plant cells have various structures not present in any other eukaryotes. Specifically, organelles known as chloroplasts enable plants to capture the energy of the Sun in energy-rich molecules; cell walls enable plants to own rigid structures as varied as wood trunks and supple leaves; and vacuoles enable plant cells to alter size.

Complete Answer:
- Chloroplasts are enclosed by two membranes. The outer membrane is pervious to tiny organic molecules, whereas the inner membrane is smaller than previous and decorated with transport proteins. The innermost matrix of chloroplasts known as the stroma, contains metabolic enzymes and multiple copies of the plastid ordering.
- Chloroplasts even have a third internal membrane known the thylakoid membrane, that is extensively collapsible and seems as stacks of planar disks in electron micrographs
- Besides the presence of chloroplasts, another major distinction between plant and animal cells is the presence of a plasma membrane. The plasma membrane surrounds the semipermeable membrane of plant cells and provides enduringness and protection against mechanical and diffusion stress. It additionally permits cells to develop state pressure that is the pressure of the cell contents against the plasma membrane.
- Plant cell walls are primarily fabricated from polyose that is the most swarming organic compound on Earth. Polyose fibers are long, linear polymers of many aldohexose molecules.

So, the correct answer is cellulose (polyose).

Note: Plant cells have sure distinctive options, as well as chloroplasts, cell walls, and living thing vacuoles. Chemical reaction takes place in chloroplasts; cell walls enable plants to own sturdy, upright structures; and vacuoles facilitate regulation however cells handle water and storage of alternative molecules.