3.3 Photosynthesis Flashcards
Why do plants photosynthesise
To produce food (Glucose)
Where in the plant does photosynthesis take place?
Chloroplasts
What is the name of the green pigment that traps light energy in photosynthesis
Chlorophyll
The light energy trapped by chlorophyll is used to split which compound?
Water
What is the water split into?
Hydrogen and Oxygen
What happens to the oxygen and hydrogen produced when water is split?
The oxygen is released by the plant as a waste product.
The hydrogen is passed to stage 2
The light energy is also used to produce which molecule that is a store of energy?
ATP
What is the name of the first stage of photosynthesis?
The light reactions
What is the name of the second stage of photosynthesis?
Carbon fixation
In carbon fixation what are joined together to produce glucose?
The hydrogen from the light reactions and carbon dioxide.
Where does the energy come from to produce Glucose form Hydrogen and carbon dioxide?
The breakdown on ATP
What is the name of the STORAGE carbohydrate produced when the glucose units are joined together?
Starch
What is the name of the STRUCTURAL carbohydrate produced when the glucose units are joined together?
Cellulose
What is the function of cellulose?
Provide structure and support to cell walls
What is a limiting factor?
A factor that when it is in short supply will slow down the rate of photosynthesis.
