NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Makes proteins-smallest organelle
A
ribosomes
B
lysosomes
C
ER
D
nucleolus
Explanation: 

Detailed explanation-1: -The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins. Sometimes, when those proteins are made improperly, the proteins stay within the endoplasmic reticulum.

Detailed explanation-2: -Ribosomes are the smallest cell organelles. They are not membrane bound and have important role in synthesis of proteins. They are found in both prokaryotic and eukaryotic cells.

Detailed explanation-3: -The lysosomes are generally 0.1 m and the ribosomes are generally 20-30 nm in diameter. Hence, the ribosomes are not bigger than the lysosomes.

Detailed explanation-4: -The nucleolus is a spherical structure found in the cell’s nucleus whose primary function is to produce and assemble the cell’s ribosomes.

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