Question

Read the following statements and identify the correct option given.

I. In prokaryotic cell, the nuclear membrane, chloroplast, mitochondria, microtubules, and different kinds of pili are absent.
II. In eukaryotic cell, the nuclear membrane, chloroplast, mitochondria, and pili are present.
III. In a prokaryotic cell, the ribosome is of 70S type and in mitochondria of eukaryotic animal cell, the ribosome is 80S type.

• A. I and II are wrong; III is correct
• B. I is correct; II and III are wrong
• C. I and III are correct; III is wrong
• D. I, II and III are wrong

Answer 1

The correct option is D I, II and III are wrong

Unlike eukaryotes, prokaryotes lack a true nucleus, a nuclear membrane and the membrane bound organelles (mitochondria, chloroplast, Golgi bodies, ER).

Ribosomes are 70S type in prokaryotes, while it is 80S in eukaryotes although 70S type of ribosomes are found in mitochondria and chloroplast of eukaryotic cell.

Pili are appendages found in prokaryotic cells but are absent in eukaryotic cells.

Thus, option d is correct as all of the given statements are wrong.