Question:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : Respiration involving proteins as respiratory substrate is called floating respiration.

Reason (R) : Respiration involving carbohydrates and fats as respiratory substrate is called protoplasmic respiration.

In the light of the above statements, choose the correct answer from the options given below

Updated On: Apr 6, 2023
  • If both assertion and reason are true and reason is the correct explanation of assertion
  • If both assertion and reason are true but reason is not the correct explanation of assertion
  • If assertion is true but reason is false
  • If both assertion and reason are false
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The Correct Option is D

Solution and Explanation

Respiration involving proteins as respiratory substrate is called protoplasmic respiration whereas floating respiration is the respiration which uses carbohydrates and fats as respiration substrates. Protoplasmic respiration cannot be continued for long as it depletes protoplasm of structural and functional proteins as well as liberates toxic ammonia.
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Concepts Used:

Cellular Respiration

Cellular respiration is a set of metabolic reactions that occurs inside the cells to convert biochemical energy obtained from the food into a chemical compound known as adenosine triphosphate (ATP). A set of chemical reactions that are carried out for maintaining the living state of the cells in an organism are called metabolism.

These can be divided into two types:

  • Catabolism – the process of splitting molecules to obtain energy.
  • Anabolism – the process of arranging all compounds required by the cells.

Therefore, respiration is a catabolic process, which breakdown larger molecules into smaller ones, releasing energy to fuel cellular activities.