NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What structure keeps harmful chemicals out of animal cells?
A
cell membrane
B
the cell wall
C
the Golgi apparatus
D
the nucleus
Explanation: 

Detailed explanation-1: -Peroxisomes-These collect and safely break down chemicals that are toxic to the cell. Lysosomes-Created by the Golgi apparatus, these help break down large molecules into smaller pieces that the cell can use.

Detailed explanation-2: -The cell membrane controls what substances pass into and out of a cell. Everything a cell needs, such as food particles, water, and oxygen, enters through the cell membrane. Waste products leave the same way. In addition, the cell membrane prevents harmful materials from entering the cell.

Detailed explanation-3: -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-4: -The nucleus is spheroid in shape and separated from the cytoplasm by a membrane called the nuclear envelope. The nuclear envelope isolates and protects a cell’s DNA from various molecules that could accidentally damage its structure or interfere with its processing.

Detailed explanation-5: -Cell Membrane A double layer that supports and protects the cell. Allows materials in and out. Lysosome Contains digestive enzymes that destroy damaged organelles and invaders.

There is 1 question to complete.