Organisms in the environment
- Created by: olivia_viney
- Created on: 04-02-16 16:58
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- Organisms in the environment
- Photosynthesis
- Only carried out by green plants and algae
- Chlorophyll in the chloroplasts absorbs the sun`s light energy
- carbon dioxide+ water+ {light energy} --> glucose + energy
- Some of the glucose is turned into starch
- Test for starch- iodine
- Some of the glucose is turned into starch
- Oxygen is released as a by-product
- Limiting factors
- Lack of light slows down rate of photosynthesis
- If it is cold the enzymes don`t work effectively
- Anything which puts a cap on photosynthesis
- How plants use glucose
- respiration
- starch for storage
- used to produce cellulose which strengthens cell walls
- produce proteins
- Organisms in their environment
- Temperature
- Nutrients- most plants struggle to grow when mineral ions are low
- Light- few plants live on forest floor because the light is blocked by trees
- Water- important for all organisms
- Photosynthesis
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