Question

Which of those organelles does not contain ribosomes?
I. Rough endoplasmic reticulum II. Chloroplast Ill. Golgi apparatus IV. Mitochondria

• A. I and II
• B. I and IV
• C. IV only
• D. III only
• E. II, III and IV only

Answer 1

Answer: (D)

III only

I. The rough endoplasmic reticulum is an interconnected network of flattened, membrane-enclosed sacs or tube-like structure which is studded with ribosomes.

II. The chloroplast is a plastid which contains ribosomes (70S type) which contains green-pigment called chlorophyll.

III. Golgi apparatus consists of a complex of vesicles and folded membranes within the cytoplasm of the cells and is involved in secretion and intracellular transport and lacks ribosomes.

IV. The mitochondria is a double-membraned cell organelle, known as the powerhouse which contains ribosomes (70S mitochondrial ribosomes).

So, the correct answer is 'III only'.