The bubbles produced in this experiment are likely to contain
- oxygen - VCE - SSCE Biology - Question 10 - 2020 - Paper 1
Question 10
The bubbles produced in this experiment are likely to contain
- oxygen.
- glucose.
- water vapour.
- carbon dioxide.
Worked Solution & Example Answer:The bubbles produced in this experiment are likely to contain
- oxygen - VCE - SSCE Biology - Question 10 - 2020 - Paper 1
Step 1
oxygen.
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Answer
The bubbles produced likely contain oxygen as a byproduct of photosynthesis, specifically during the light-dependent reactions where water molecules are split (photolysis) to release oxygen.
Step 2
glucose.
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Answer
While bubbles may not directly contain glucose, it is a product of photosynthesis. Glucose is synthesized during the Calvin cycle, and its presence can indicate that the process of photosynthesis is occurring, but it does not escape as bubbles.
Step 3
water vapour.
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Water vapour can be released as a gas during respiration or transpiration, and may also be present in small amounts in the bubbles due to the evaporation of water in the environment.
Step 4
carbon dioxide.
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Answer
Carbon dioxide is released during the process of respiration of the organisms present in the experiment and could also come from the decomposition of organic matter, leading to its presence in the bubbles.
