Ribosomes are I. Non-membrane bound. II. Absent in plastids and mitochondria. III. Present in the cytoplasm and RER. IV. Take part in protein synthesis. Which of the following option is most appropriate?

Question

Ribosomes are I. Non-membrane bound. II. Absent in plastids and mitochondria. III. Present in the cytoplasm and RER. IV. Take part in protein synthesis. Which of the following option is most appropriate? (A) Only II is correct (B) I and II are correct (C) I, II, III and IV are correct (D) I, III and IV are correct

Tardigrade Admin · Accepted Answer

Statements I, III and IV are correct and II is incorrect and can be corrected as Ribosomes are present in mitochondria and chloroplast (plastids). Both of these organelles contain 70 S ribosomes.

Q. Ribosomes are
I. Non-membrane bound.
II. Absent in plastids and mitochondria.
III. Present in the cytoplasm and RER.
IV. Take part in protein synthesis.
Which of the following option is most appropriate?

Only II is correct

I and II are correct

I, II, III and IV are correct

I, III and IV are correct

Statements I, III and IV are correct and II is incorrect and can be corrected as
Ribosomes are present in mitochondria and chloroplast (plastids). Both of these organelles contain $70 S$ ribosomes.

Q. Ribosomes are I. Non-membrane bound. II. Absent in plastids and mitochondria. III. Present in the cytoplasm and RER. IV. Take part in protein synthesis. Which of the following option is most appropriate?