Question

In bacteria the respiratory enzymes are located on
A. Plasmid
B. Episome
C. Mesosome
D. Nucleoid

Answer 1

Enzymes are biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.

Complete answer:
The membranes of bacteria are structurally similar to the cell membranes of eukaryotes, except that bacterial membranes consist of saturated or monounsaturated fatty acids (rarely, polyunsaturated fatty acid) and do not normally contain sterols. The cell membranes are an essential structure in bacteria. They are made of chemical components found nowhere else in nature. The cell membrane is the site of action of some of our most important antibiotics.
Bacterial cells do not have membrane bound organelles like plastids and mitochondria. Their plasma membrane is however, infolded into lysosomes which carry respiratory enzymes and are known as mitochondria of bacteria. The prokaryotes are single-celled organisms such as bacteria and archaea. They also lack the many membrane-bound organelles found in eukaryotic cells. The respiratory enzyme is located at the cell membrane of prokaryotes and the membrane assists DNA replication.

Therefore, from the above explanation, the correct option is (C) Mesosome.

Note: The bacteria respires like other living organisms. They oxidize food material present in the cytoplasm to obtain energy. Most bacteria obtain food from a free source of oxygen from the atmosphere.