Class XI Biology Respiration in Plants 3

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Question 1

R. Q. for glucose is

• A1
• B0.5
• C2
• D0.05

Question 2

Final electron acceptor in ETS is

• AH₂O
• BO₂
• Ccyt a₃
• Dcyt a

Question 3

Cytochrome oxidase is a/an

• AExoenzyme
• BEndoenzyme
• CProenzyme
• DCoenzyme

Question 4

The reactions of Kreb’s cycle takes place

• Ain the cytoplasm.
• Bin the endoplasmic reticulum.
• Cin the matrix of mitochondria.
• Don the surface of mitochondria.

Question 5

Direction: In each of the following questions statement of Assertion is given followed by corresponding statement of Reason. Of the statements, mark the correct answer as

Assertion (A) In the TCA cycle isomerisation of citric acid into isocitric acid is done by the change in position.
Reason (R) Isocitric acid is more stable than citric Acid.

• ABoth Assertion and Reason are true and Reason is the correct explanation of Assertion
• BBoth Assertion and Reason are true, but Reason is not the correct explanation of Assertion
• CAssertion is true, but Reason is false
• DBoth Assertion and Reason are false

Question 6

Glycogenolysis involves

• Aconversion of sugar into glycogen
• Boxidation of sugar
• Cconversion of glycogen into sugar
• Dconversion of glycogen into fat

Question 7

What is the correct order of the stages of cellular respiration?

• AKrebs’ cycle electron—transport—chain glycolysis
• Belectron transport chain— Krebs’ cycle— glycolysis
• CGlycolysis—Krebs’ cycle— electron transport chain
• DGlycolysis— electron transport chain— Krebs’ cycle

Question 8

RQ (Respiratory Quotient) is defined as

• AVolume of CO₂ evolved = volume of O₂ consumed
• B
• C
• D

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