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Respiration In Plants Mock Tests

19 questions available

Respiration In Plants Mock Test 1

Questions: 19

नमूना प्रश्न

Class 11 Biology
During glycolysis, glucose is broken down into which of the following end products?
A Two molecules of pyruvate
B One molecule of acetyl-CoA
C Two molecules of lactic acid only
D Six molecules of carbon dioxide
Class 11 Biology
During the Krebs cycle (TCA cycle), which of the following molecules is produced directly from the conversion of alpha-ketoglutarate?
A Oxaloacetate
B Succinyl-CoA
C Citrate
D Malate
Class 11 Biology
How many net ATP molecules are produced from one molecule of glucose during aerobic respiration (including glycolysis, Krebs cycle, and oxidative phosphorylation)?
A 2 ATP
B 16 ATP
C 32 ATP
D 38 ATP
Class 11 Biology
The respiratory quotient (RQ) is defined as the ratio of:
A CO₂ produced to O₂ consumed
B O₂ consumed to CO₂ produced
C CO₂ consumed to O₂ produced
D O₂ produced to CO₂ consumed
Class 12 Biology
The chemiosmotic theory of ATP synthesis in mitochondria proposes that ATP is generated because:
A Proton (H⁺) gradient across the inner mitochondrial membrane provides potential energy that drives ATP synthase to phosphorylate ADP
B Electrons directly transfer phosphate groups to ADP during their passage through cytochrome c oxidase
C NADH donates phosphate groups directly to ADP while releasing energy through oxidation
D Oxygen binds to ADP and catalyses the formation of ATP through a direct chemical reaction
Class 11 Biology
In the TCA cycle, which substrate-level phosphorylation directly produces GTP (equivalent to ATP)?
A Isocitrate to α-ketoglutarate
B Succinyl-CoA to succinate
C Succinate to fumarate
D Malate to oxaloacetate
Class 11 Biology
The TCA cycle (Krebs cycle) takes place in which part of the mitochondrion?
A Outer membrane
B Inner membrane
C Matrix
D Intermembrane space
Class 11 Biology
The electron transport chain (ETS) in the inner mitochondrial membrane pumps protons (H⁺) into the intermembrane space. Which of the following is the correct sequence of electron carriers in the ETS?
A Complex I → CoQ → Complex II → Cytochrome c → Complex III
B Complex I → CoQ → Complex III → Cytochrome c → Complex IV
C Complex II → CoQ → Complex I → Cytochrome c → Complex III
D CoQ → Complex I → Complex III → Complex IV → Cytochrome c

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