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Respiration in Plants

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Exchange of gases

Subtopic

Exchange of gases under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 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. 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. 3.

    In a pea plant, where would most of the O2O_2 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.

Glycolysis

Subtopic

Glycolysis under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Is glycolysis a cyclic or linear metabolic pathway?

    A.

    Cyclic

    B.

    Linear

    C.

    Spiral

    D.

    Branched

  2. 2.

    Which enzyme acts on Fructose-6-phosphate during glycolysis?

    A.

    Hexokinase

    B.

    Phosphofructokinase

    C.

    Aldolase

    D.

    Invertase

  3. 3.

    What happens to the NADH+H+NADH + H^+ 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)

Subtopic

Fermentation (anaerobic) under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is true for both alcoholic and lactic acid fermentation?

    A.

    Both release CO2CO_2

    B.

    Both occur in the cytoplasm

    C.

    Both use oxygen

    D.

    Both produce ethanol

  2. 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. 3.

    The total energy yield of fermentation is lower than aerobic respiration because:

    A.

    CO2CO_2 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)

Subtopic

TCA cycle and Electron transport system (aerobic) under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 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 CO2CO_2

  2. 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. 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

Subtopic

Amphibolic pathways under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 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. 2.

    The RQ value of 0.9 is characteristic of which respiratory substrate?

    A.

    Glucose

    B.

    Fats

    C.

    Proteins

    D.

    Organic acids

  3. 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

Subtopic

Respiratory quotient under Respiration in Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which value of RQRQ 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. 2.

    Which substrate requires the most oxygen relative to the amount of CO2CO_2 produced?

    A.

    Glucose

    B.

    Organic acids

    C.

    Fats

    D.

    Carbohydrates

  3. 3.

    Calculate the RQRQ if a tissue produces 44.8extliters44.8 ext{ liters} of CO2CO_2 and consumes 44.8extliters44.8 ext{ liters} of O2O_2.

    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.

Respiration in Plants - Class 11 Biology (CBSE) | Krit.club