Indicate whether the following are true (T) or false (F) by drawing a circle around T or F - Leaving Cert Biology - Question 3 - 2008
Question 3
Indicate whether the following are true (T) or false (F) by drawing a circle around T or F.
(a) Stage 1 of respiration requires oxygen
(b) Stage 1 of respiration t... show full transcript
Worked Solution & Example Answer:Indicate whether the following are true (T) or false (F) by drawing a circle around T or F - Leaving Cert Biology - Question 3 - 2008
Step 1
Stage 1 of respiration requires oxygen
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Answer
False. Stage 1 (glycolysis) does not require oxygen; it occurs in the cytoplasm and can happen anaerobically.
Step 2
Stage 1 of respiration takes place in the cytoplasm
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Answer
True. Glycolysis, which makes up Stage 1 of respiration, occurs in the cytoplasm of the cell.
Step 3
Stage 2 of respiration also takes place in the cytoplasm
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Answer
False. Stage 2 (Krebs cycle and electron transport chain) occurs in the mitochondria, not in the cytoplasm.
Step 4
Some of the energy released in respiration is lost as heat
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Answer
True. During cellular respiration, not all energy is captured as ATP; some is inevitably lost as heat.
Step 5
Lactic acid is a product of anaerobic respiration
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Answer
True. In anaerobic respiration, particularly in certain organisms and muscle cells, lactic acid is produced as a byproduct.
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