Prepare for NEET Biology Respiration in Plants (Aerobic Respiration) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to examine Krebs cycle, electron transport chain, and ATP yield.
NEET Questions / Botany / Respiration in Plants / Aerobic Respiration
During aerobic respiration, the complete oxidation of one molecule of glucose theoretically yields 38 ATP. However, the actual yield is often lower. Which of the following is NOT a significant contributor to this reduced ATP yield?
Incomplete oxidation of glucose in the cytoplasm
Leakage of protons across the inner mitochondrial membrane
Utilization of the proton gradient for processes other than ATP synthesis
Variations in the efficiency of the electron transport chain
During aerobic respiration, the maximum number of ATP molecules are generated during which stage?
Glycolysis
Krebs cycle
Oxidative phosphorylation
Link reaction
Which process directly generates the proton gradient across the inner mitochondrial membrane during aerobic respiration?
Glycolysis
Krebs cycle
Electron transport chain
Substrate-level phosphorylation
How many molecules of CO2 are released per glucose molecule during the complete oxidation of glucose in aerobic respiration?
2
4
6
8
All of the following occur within the mitochondria EXCEPT:
Glycolysis
Krebs cycle
Electron transport chain
ATP synthesis
Select the wrong statement.
Work is a scalar quantity
Kinetic energy depends on the mass and speed of the object
The work-energy theorem states that the net work done on an object is equal to the change in its kinetic energy
Power is the amount of work done
Select the wrong statement.
Heat flows from a body at higher temperature to a body at lower temperature.
Temperature is a form of energy.
Specific heat is the amount of heat required to raise the temperature of a unit mass of a substance by a unit degree of temperature.
Two systems are in thermal equilibrium if they have the same temperature.
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act.
I.    Enolase
II.    Aconitase
III.    Fumarase
IV.    Alcohol Dehydrogenase
II, IV, III, I
IV, I, II, III
I, IV, III, II
IV, I, III, II
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act.
I.    Enolase
II.    Aconitase
III.    Fumarase
IV.    Alcohol Dehydrogenase
II, IV, III, I
IV, I, II, III
I, IV, III, II
IV, I, III, II
The pyruvic acid formed during glycolysis is oxidized to and in a cycle called
Calvin cycle
Nitrogen cycle
Hill reaction
Krebs’ cycle
