Answer the following questions from your knowledge of respiration - Leaving Cert Biology - Question 12 - 2018
Question 12
Answer the following questions from your knowledge of respiration.
(i) Give a balanced chemical equation to summarise the process of aerobic respiration.
(ii) 1. N... show full transcript
Worked Solution & Example Answer:Answer the following questions from your knowledge of respiration - Leaving Cert Biology - Question 12 - 2018
Step 1
Give a balanced chemical equation to summarise the process of aerobic respiration.
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Answer
The balanced chemical equation for aerobic respiration is:
ightarrow 6CO_2 + 6H_2O$$
This equation shows that glucose reacts with oxygen to produce carbon dioxide and water.
Step 2
Name the storage polysaccharide in humans from which glucose is produced.
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Answer
The storage polysaccharide in humans from which glucose is produced is Glycogen.
Step 3
Give one major storage location of this polysaccharide in the body.
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Answer
One major storage location of glycogen in the body is the Liver or muscle.
Step 4
What happens to pyruvate molecules that prepares them for the Krebs cycle?
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Answer
Pyruvate molecules undergo a decarboxylation process where they lose a carbon atom or lose CO2. This prepares them to change from a 3-carbon molecule to a 2-carbon molecule, converting it to acetyl-CoA.
Step 5
Name three products of the Krebs cycle.
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Three products of the Krebs cycle are:
ATP
NADH
CO2
Step 6
Briefly describe the fate of any one of the products mentioned in part (iv) above.
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For ATP:
ATP breaks down and releases energy, which can be used in active transport or in anabolic reactions.
Step 7
What is the final electron acceptor in aerobic respiration?
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Answer
The final electron acceptor in aerobic respiration is Oxygen.
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