Respiration in Plants
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Exchange of gases
SubtopicExchange of gases under Respiration in Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
What gas is produced as a waste product when glucose is oxidized during respiration?
A.Oxygen
B.Carbon dioxide
C.Nitrogen
D.Hydrogen
- 2.
Plants can survive without specialized respiratory organs because each plant part __________.
A.Can produce its own glucose
B.Has a very high metabolic rate
C.Takes care of its own gas-exchange needs
D.Is directly connected to the lungs
- 3.
In a pea plant, where would most of the diffusion occur?
A.Bark
B.Lenticels
C.Stomata
D.Heartwood
Download the worksheet for Respiration in Plants - Exchange of gases to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Is glycolysis a cyclic or linear metabolic pathway?
A.Cyclic
B.Linear
C.Spiral
D.Branched
- 2.
Which enzyme acts on Fructose-6-phosphate during glycolysis?
A.Hexokinase
B.Phosphofructokinase
C.Aldolase
D.Invertase
- 3.
What happens to the produced during glycolysis in the presence of oxygen in plant cells?
A.It is converted to glucose
B.It enters the mitochondria for the ETS
C.It is excreted as waste
D.It is used in the Calvin cycle
Download the worksheet for Respiration in Plants - Glycolysis to practice offline. It includes additional chapter-level practice questions.
Fermentation (anaerobic)
SubtopicFermentation (anaerobic) under Respiration in Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which of the following is true for both alcoholic and lactic acid fermentation?
A.Both release
B.Both occur in the cytoplasm
C.Both use oxygen
D.Both produce ethanol
- 2.
In fermentation, the electrons removed from glucose during glycolysis are eventually donated to:
A.Oxygen
B.An organic molecule (like pyruvate or its derivative)
C.Water
D.The mitochondria
- 3.
The total energy yield of fermentation is lower than aerobic respiration because:
A.is not produced
B.Glucose is not broken down at all
C.Organic end-products like ethanol still contain energy
D.No enzymes are used
Download the worksheet for Respiration in Plants - Fermentation (anaerobic) to practice offline. It includes additional chapter-level practice questions.
TCA cycle and Electron transport system (aerobic)
SubtopicTCA cycle and Electron transport system (aerobic) under Respiration in Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
What happens to the Coenzyme A (CoA) after Acetyl CoA reacts with Oxaloacetic acid?
A.It is destroyed
B.It is incorporated into Citric acid
C.It is released to be reused in the link reaction
D.It is converted into
- 2.
Which of these complexes does NOT pump protons across the inner mitochondrial membrane?
A.Complex I
B.Complex II
C.Complex III
D.Complex IV
- 3.
The synthesis of GTP in the TCA cycle is an example of:
A.Oxidative phosphorylation
B.Photophosphorylation
C.Substrate-level phosphorylation
D.Dephosphorylation
Download the worksheet for Respiration in Plants - TCA cycle and Electron transport system (aerobic) to practice offline. It includes additional chapter-level practice questions.
Amphibolic pathways
SubtopicAmphibolic pathways under Respiration in Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which of these statements best summarizes the amphibolic pathway?
A.It is a pathway where only ATP is generated
B.It is a pathway where only glucose is oxidized
C.It is a pathway involving both the breakdown and the synthesis of molecules
D.It is a pathway that occurs only in the absence of oxygen
- 2.
The RQ value of 0.9 is characteristic of which respiratory substrate?
A.Glucose
B.Fats
C.Proteins
D.Organic acids
- 3.
In which part of the cell does the conversion of Pyruvic acid to Acetyl CoA occur?
A.Cytoplasm
B.Mitochondrial matrix
C.Inner mitochondrial membrane
D.Chloroplast
Download the worksheet for Respiration in Plants - Amphibolic pathways to practice offline. It includes additional chapter-level practice questions.
Respiratory quotient
SubtopicRespiratory quotient under Respiration in Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which value of would indicate that a mixture of substrates is being oxidized, such as during the germination of a seed containing both oil and starch?
A.Infinite
B.0
C.Between 0.7 and 1.0
D.Exactly 4.0
- 2.
Which substrate requires the most oxygen relative to the amount of produced?
A.Glucose
B.Organic acids
C.Fats
D.Carbohydrates
- 3.
Calculate the if a tissue produces of and consumes of .
A.1.0
B.0.8
C.1.2
D.0.5
Download the worksheet for Respiration in Plants - Respiratory quotient to practice offline. It includes additional chapter-level practice questions.