STU1043 Plant Physiology LU5: Respiration in Plants 1

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What is the primary purpose of respiration in plants?

To convert water and CO2 into food

To produce glucose for energy storage

To produce oxygen for metabolic processes

To break down stored food to obtain energy (correct)

What are the waste products produced during plant respiration?

Starch and sucrose

Water and CO2 (correct)

Glucose and oxygen

Fructose and glucose

Which of the following is a primary respiratory substrate in cells of higher plants?

Cellulose

Starch (correct)

Sucrose

Fructose

What happens to glucose during plant respiration?

It is oxidized to CO2 Signup and view all the answers

When does respiration in plants occur?

Both during the day and night Signup and view all the answers

What is the main purpose of aerobic respiration in plants?

To produce energy with the help of oxygen Signup and view all the answers

During which stage does the conversion of fats to sucrose occur in plant respiration?

Fermentation Signup and view all the answers

What is the principal form in which organic materials are translocated within the plant body?

Sucrose Signup and view all the answers

Where does glycolysis occur in plant respiration?

Cytoplasm Signup and view all the answers

What is the end product of glycolysis in plant respiration?

Pyruvate Signup and view all the answers

Which stage of respiration occurs under either aerobic or anaerobic conditions?

Fermentation Signup and view all the answers

What is lost as CO2 during the conversion of pyruvate into acetyl-CoA in plant respiration?

Carboxyl group Signup and view all the answers

Where does the Krebs Cycle occur in plant respiration?

Mitochondria Signup and view all the answers

In which phase of the Krebs Cycle is oxaloacetate regenerated?

Loss of CO2 from citrate to regenerate oxaloacetate Signup and view all the answers

What is the role of NADH in aerobic respiration?

To generate ATP during the Electron Transport Chain Signup and view all the answers

STU1043 Plant Physiology LU5: Respiration in Plants 1

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