Combined ScienceCode 5129
Photosynthesis
What this topic asks you to be able to do
- Understand that photosynthesis is the process through which plants manufacture carbohydrates out of raw materials, powered by light energy
- Give the word equation for photosynthesis, along with its balanced chemical equation
- State that chlorophyll, a green pigment, is located inside chloroplasts
- State that chlorophyll turns light energy into chemical energy, this energy then being used to form glucose and other carbohydrates
- Outline how the carbohydrates made in photosynthesis are then used and stored, limited to: (a) starch, kept as an energy store (b) cellulose, for building cell walls (c) glucose, broken down in respiration to release energy (d) sucrose, the form carried through the plant (e) glucose combined with mineral ions to make other biological molecules, e.g. proteins
- Investigate and account for how changing light intensity affects the rate of photosynthesis, making use of submerged aquatic plants