Question

Respiratory enzymes are found associated with plasma membrane in:

• A. Clostridium
• B. Chlorella
• C. Chara
• D. Chlamydomonas

Answer 1

The correct option is A Clostridium

Prokaryotic cells lack membrane-bound organelles and the process of respiration occurs in the mesosome within the cytoplasm. The mesosome is created as the plasma membrane folds inward, and within this region are respiratory enzymes which function within an electron transport chain.

Thus Clostridium is the only prokaryote among the options given. Chlorella, Chara, and Chlamydomonas are algae and hence are eukaryotes.

So, the correct option is ' Clostridium'.