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Key Area 3.3
Revision for Key area 3.3 Photosynthesis
| Question | Answer |
|---|---|
| State the location of photosynthesis in a plant cell | Chloroplast |
| State the name of the first stage of photosynthesis | Light-dependent stage |
| Name 3 products formed at the first stage of photosynthesis | Hydrogen, Oxygen, ATP |
| Name the product of photosynthesis that exits the plant | Oxygen |
| What is stage 2 of photosynthesis dependent on and why? | Temperature because enzymes are required for the reactions and these enzymes work best at their optimum temperature |
| What is the product of stage 2 of photosynthesis | glucose |
| Name 3 limiting factors of photosynthesis | Light intensity, Temperature, Carbon dioxide concentration |
| Name the chemical used to test for the presence of starch in a leaf | Iodine |
| How could you measure the effect of light intensity on photosynthesis in a pondweed? | Elodea bubbler experiment |
| Name the second stage of photosynthesis | Carbon fixation stage |
| What is the word equation for photosynthesis | Carbon dioxide + water -----> Glucose + Oxygen (In the presence of Light energy +Chlorophyll) |
| What is a limiting factor? | A limiting factor is any factor which stops the rate of a reaction from increasing further |
| Light energy is used by chlorophyll to ... | split water |
| Name the high energy molecule in cells | ATP |