CELL RESPIRATION
GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To rearrange the glucose molecule to be broken down
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To split the glucose molecule to release energy
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To recreate acetyl CoA for the krebs cycle
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To absorb and store energy in ATP molecules
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Detailed explanation-1: -Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism. Glycolysis consists of an energy-requiring phase followed by an energy-releasing phase.
Detailed explanation-2: -Glycolysis is a cytoplasmic pathway which breaks down glucose into two three-carbon compounds and generates energy. Glucose is trapped by phosphorylation, with the help of the enzyme hexokinase.
Detailed explanation-3: -The word glycolysis means “glucose splitting, ” which is exactly what happens in this stage. Enzymes split a molecule of glucose into two molecules of pyruvate (also known as pyruvic acid).
Detailed explanation-4: -The first phase of glycolysis requires energy, while the second phase completes the conversion to pyruvate and produces ATP and NADH for the cell to use for energy.
Detailed explanation-5: -Fructose-bisphosphate aldolase (aldolase) catalyses the reversible cleavage of F1, 6PP to two triose phosphates, both of which continue through glycolysis.