Question

Anaerobic respiration takes place in
A. Ribosome
B. Nucleus
C. Vacuole
D. Cytoplasm

Answer 1

Hint:
The process of respiration to release energy-containing ATP molecules, in the absence of oxygen is known as anaerobic respiration. Both Glycolysis and Fermentation are types of anaerobic respiration. The final electron acceptor is not oxygen like an aerobic process.

Complete step by step answer:
Both types of anaerobic respiration, glycolysis, and fermentation takes place in a jelly-like fluid part of the cell known as the cytoplasm. This step is common in both eukaryotic and prokaryotic organisms. The energy yield is less when compared to aerobic respiration. The first step of anaerobic respiration is glycolysis and yields two molecules of ATP. The product of this pathway pyruvate can be used as the starting compound for fermentation, which is another anaerobic respiratory process.
Considering the other given options:
Ribosomes are grain-like structures suspended freely in the cytoplasm, they can also be seen in association with organelles such as Golgi Apparatus. This is the only organelle that is present in both eukaryotic and prokaryotic cells. The primary function of it is in protein synthesis.
The nucleus is the most important part of a cell. It is a membrane-bound organelle, which is present only in eukaryotes. The nucleus contains genetic materials and is involved in the replication process.
The vacuole is the organelle that is present exclusively in plant cells. It has a variety of functions. It helps in maintaining the cell structure, osmoregulation, tonicity maintenance, storage, and many more.

Thus, the most appropriate answer is D, that is, anaerobic respiration takes place in the cytoplasm.

Note:
The process of aerobic respiration occurs in an organelle called mitochondria. It is an organelle containing two membranes, thus it is not present in prokaryotic cells. The process of aerobic respiration is known as Kreb’s Cycle.