32 Questions
What is the primary purpose of respiration in plants?
To break down glucose and obtain energy
During which time period does respiration in plants occur?
Both at night and day
What are the principal respiratory substrates in cells of higher plants?
Carbohydrates and sugars
Which of the following is NOT a principle soluble sugar in plant cells?
Maltose
What happens to the food during respiration in plant cells?
Food is broken down to produce energy
What is a respiratory substrate in plants?
$Glucose$
What is the principle form in which organic materials are translocated within plants?
Sucrose
Which substance rich in fat reserves is converted to sucrose and subsequently absorbed and respired by the growing embryo at germination?
Castor bean
Which pathway involves the split of a 6-carbon glucose, forming 2 molecules of a 3-carbon compound, pyruvate?
Glycolysis
In which part of the cell does glycolysis occur?
Cytoplasm
What is the end product of glycolysis?
Pyruvate
Which type of respiration occurs when there is not enough oxygen around for plants to respire?
Anaerobic respiration
What is the total ATP produced from aerobic respiration?
$38$ ATPs
In which part of the cell does Krebs cycle occur?
Mitochondria
What occurs under either aerobic or anaerobic condition?
Glycolysis
What does NAD+ get reduced to during glycolysis?
NADH
What is the primary purpose of respiration in plants?
To break down stored food and obtain energy
During which time period does respiration in plants occur?
Both at night and day
Which of the following is NOT a principle soluble sugar in plant cells?
Maltose
What does NAD+ get reduced to during glycolysis?
NADH
What happens to the food during respiration in plant cells?
It is oxidized/combined with oxygen to release energy
What is the end product of glycolysis?
$C_3H_6O_3$
What is the end product of the Krebs Cycle in plant cells?
ATP
During anaerobic respiration in plant cells, pyruvate can be converted to which compound?
Ethanol
What is the main function of NADH in cellular respiration?
To generate ATP in the electron transport chain
Which compound is formed when acetyl-CoA combines with oxaloacetate in the Krebs Cycle?
Citrate
What happens to fats rich in reserves contained in the endosperm tissue of certain seeds during germination?
They are converted to sucrose and absorbed by the growing embryo
Where does glycolysis occur in plant cells?
Cytoplasm
What is the primary function of the electron transport chain in cellular respiration?
To generate ATP from high-energy electrons
In which part of the cell does the conversion of pyruvate to acetyl-CoA occur?
Mitochondria
What is the net production of ATP from glycolysis in plant cells?
2 ATP
What is the role of oxygen in aerobic respiration in plant cells?
To accept electrons at the end of the electron transport chain
Learn about aerobic and anaerobic respiration, reaction and substrates in plants. Understand the physiological processes regulating plant growth performance.
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