Question

Which of the following structures is present in both prokaryotic and eukaryotic cells?

A. Golgi apparatus

B. Cell membrane

C. Endoplasmic reticulum

D. Chloroplast

Answer 1

Answer- B. Cell membrane

Explanation-

1. Prokaryotes are primitive organisms that does not contain membrane bound organelles like nucleus, chloroplast, mitochondria, golgi apparatus, endoplasmic reticulum, lysosome etc.

2. Prokaryotes are very simple organisms because they are single celled and their life cycle is short than eukaryotes.

3. Eukaryotes the name suggests that well membrane bound nucleus is present along with other membrane bound organelles like endoplasmic reticulum, chloroplast, mitochondria, golgi apparatus, lysosome, peroxysome etc.

4. Both prokaryotic and eukaryotic cell is enclosed with cell membrane and except animal cell all cells are covered with cell wall next to cell membrane.

5. As eukaryotic cell is evolved from ancient prokaryotic cell the cell membrane is most common in both cells. So that cell membrane is the only structure which is present in both prokaryotic and eukaryotic cells.