NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which structure is found in plant cells and not in animal cells?
A
cell wall
B
centriole
C
nucleus
D
cytoplasm
Explanation: 

Detailed explanation-1: -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-2: -Cell wall is a boundary, present outside the plasma membrane or cell membrane. It is made up of cellulose and is present only in plant cells. It is not present in an animal cell.

Detailed explanation-3: -Centrioles are present in (1) animal cells and (2) the basal region of cilia and flagella in animals and lower plants (e.g. chlamydomonas). In cilia and flagella centrioles are called ‘basal bodies’ but the two can be considered inter-convertible. Centrioles are absent from the cells of higher plants.

Detailed explanation-4: -Centrioles are found in animal cells, in some lower plant cells, and at the base of flagella and cilia, they are absent in higher plants. Animal cells, perform an essential function in the division of cells by producing microtubule-organizing centers.

Detailed explanation-5: -Mitochondria are present in both animal and plant cells.

There is 1 question to complete.