What are the reactants needed for photosynthesis?
Water and Carbon dioxide
What are the products of photosynthesis?
Glucose and oxygen
Which type of energy is essential for photosynthesis to take place?
Light energy
Which organelle (part of a cell) carries out photosynthesis?
Chloroplast
What is the name of the green substance which captures light energy (and is found in chloroplasts) to enable photosynthesis?
Chlorophyll
Where does the water, required by plants, come from?
The soil
What three factors can limit the rate of photosynthesis?
Light intensity
Carbon dioxide concentration
Temperature
How is 4 ways glucose used by plants and algae?
Respiration
To produce fats and oils
To make cellulose (which strengthens cell walls) To synthesise (make) proteins
What else do plants need to absorb from the soil to produce proteins?
Nitrate ions
What do plants store glucose as?
Insoluble starch
List three things you can do in a greenhouse to increase growth.
Artificial light - allows photosynthesis to continue at night
Heating - allows photosynthesis to continue at an increased rate and the heater can also release extra carbon dioxide.
