GENERAL HISTOLOGY

INTRODUCTION

CELL ORGANELLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Provides extra protection and support to plants, fungi, and prokaryotic cells. It is NOT found in animal cells.
A
Cell Membrane
B
Nuclear Envelope
C
Cell Wall
D
Chloroplast
Explanation: 

Detailed explanation-1: -Hence, the correct answer is ‘cell wall’

Detailed explanation-2: -Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.

Detailed explanation-3: -Moreover plant cells have cell wall because plants do not move from one place to another and hence they require rigidity which is provided by the cell wall but animal cells move. The cell wall if present in the animal cell will be a hindrance to movement.

Detailed explanation-4: -As mentioned earlier, the cell wall is present in all plant cells, fungi, bacteria, algae, and some archaea. An animal cell is irregular in its shape and this is mainly due to the lack of cell wall.

Detailed explanation-5: -Cell walls are absent in many eukaryotes, including animals, but are present in some other ones like fungi, algae and plants, and in most prokaryotes (except mollicute bacteria). A major function is to act as pressure vessels, preventing over-expansion of the cell when water enters.

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