KCET · BIOLOGY · STD 11 - 12. Respiration in Plants

The respiratory quotient during cellular respiration would depend on

A the amount of carbon dioxide released
B the amount of oxygen utilised
C the nature of enzymes involved
D the nature of the substrate

Verified Solution

Answer & Solution

Correct Answer

(D) the nature of the substrate

Step-by-step Solution

Detailed explanation

(D) the nature of the substrate,
The RQ is the ratio of the amount of carbon dioxide released to the amount of oxygen utilized. It varies depending on the substrate being metabolized-carbohydrates, proteins, or fats, for instance, RQ is 1 for carbohydrates, less than 1 is false.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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KCET 2020 Hard

Match the type of immunity listed in column-I with the examples listed in column-II. Choose the answer that gives the correct combination of alphabets of the two columns:

Column-I (Types of immunity)	Column-II (Example)
A. Natural active	p. Immunity developed by heredity
B. Artificial passive	q. From mother to foetus through placenta
C. Artificial active	r. Injection of antiserum to travellers
D. Natural passive	s. Fighting infections naturally
	t. Induced by vaccination

KCET 2010 Easy

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Column-I	Column-II
A. Neutrophils	(i) 6-8%
B. Lymphocytes	(ii) 60-65%
C. Monocytes	(iii) 0.5-1%
D. Basophils	(iv) 2-3%
E. Eosinophils	(v) 20-25%