NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which pair of structures best shows that plant cells have functions different from animal cells?
A
Chloroplasts and cell walls
B
Cytoplasm and mitochondria
C
Ribosomes and cell membranes
D
Nuclei and centrioles
Explanation: 

Detailed explanation-1: -Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.

Detailed explanation-2: -Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

Detailed explanation-3: -Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.

Detailed explanation-4: -Endoplasmic reticulum is present in both plant and animal cells and acts as the site of protein and lipid synthesis.

Detailed explanation-5: -Three differences between a plant cell and an animal cell are: Animal cell lack cell wall, unlike a plant cell which has a cellulosic cell wall. Animal cell lack chloroplast, whereas plant cell has chloroplast. Animal cell has centrioles, centrosome, and lysosome but plant cell lack them.

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