Which of the following function does not takes place in absence of rib...
The correct answer is (c) Protein synthesis.
Ribosomes are cellular organelles responsible for protein synthesis in a cell. They are involved in the translation of mRNA (messenger RNA) into proteins. In the absence of ribosomes, protein synthesis cannot occur efficiently or at all. Therefore, option (c) is the correct answer.
On the other hand, the functions mentioned in the other options can still occur in the absence of ribosomes:
(a) Respiration: Cellular respiration is the process of generating energy (ATP) from organic molecules. It primarily occurs in the mitochondria, which are separate organelles and not directly dependent on ribosomes.
(b) Exertion: It is unclear what is meant by "exertion" in the context of cellular functions. If it refers to cellular activities, such as movement or transport processes, those functions can be carried out by various other organelles and molecular mechanisms that are not strictly dependent on ribosomes.
(d) Carbohydrate synthesis: The synthesis of carbohydrates, such as glucose, occurs through various metabolic pathways that do not directly involve ribosomes. These pathways, such as glycolysis and gluconeogenesis, are enzymatic reactions that take place in the cytoplasm and other cellular compartments.