What is photosynthesis?

The process by which plants, algae and some bacteria convert light energy into chemical energy, transforming carbon dioxide and water into glucose and oxygen.

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List the 3 factors investigated that affect the rate of photosynthesis?

  1. Light intensity
  2. Carbon dioxide concentration
  3. Presence of chlorophyll

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What is the dependent variable in the photosynthesis practical?

Rate of photosynthesis (number of oxygen bubbles produced)

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How is the presence of starch detected?

Using iodine solution - starch turns blue-black

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What gas is produced during photosynthesis?

Oxygen

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