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The image shows a transverse section through a mitochondrion, produced using a transmission electron microscope - Leaving Cert Biology - Question 4 - 2022

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The image shows a transverse section through a mitochondrion, produced using a transmission electron microscope. (c) Aerobic respiration involves two stages. (i) N... show full transcript

Worked Solution & Example Answer:The image shows a transverse section through a mitochondrion, produced using a transmission electron microscope - Leaving Cert Biology - Question 4 - 2022

Step 1

i) Name and give the location of the stage of aerobic respiration that does not occur in the mitochondrion.

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Answer

Name: Glycolysis Location: Cytosol (accept cytoplasm).

Step 2

ii) Name the series of chemical reactions, involving acetyl CoA, which does occur in the mitochondrion.

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Answer

The series of reactions is called the Krebs cycle.

Step 3

iii) State the number of carbon atoms in a molecule of acetyl co-enzyme A.

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Answer

Two.

Step 4

d) Describe a condition during which lactic acid may be produced during respiration.

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Answer

This may occur under anaerobic conditions or in cases of oxygen deficiency.

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