1a
2 marks
2 marksFig. 1 shows an animal cell.
Fig. 1
Identify which letter represents the cell structure where respiration takes place and name the cell structure.
1b4 marks
4 marksComplete the following sentence about respiration:
Respiration releases energy from __________ to be used in life processes such as ___________ reactions, __________ contraction and maintaining a constant body ____________.
1c2 marks
2 marksComplete Table 1 with a (✓) or a (X) to show the products and reactants of anaerobic respiration in animals.
Table 1
| product | reactant | |
| oxygen | ||
| carbon dioxide | ||
| lactic acid | ||
| glucose | ||
| water | ||
| ethanol |
1d3 marks
3 marksAn oxygen debt is often associated with anaerobic respiration.
Describe the process that occurs in the body during an oxygen debt.
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