Photosynthesis Flashcards
Where does photosynthesis occur
In leaves as they contain chlorophyll which absorbs light energy
Word equation for photosynthesis
Carbon dioxide + Water —> Glucose + Oxygen
Symbol equation for photosynthesis
6CO2 + 6H2O —> C6H12O6 + 6O2
Symbol for glucose
C6H12O6
State the limiting factors for photosynthesis
Light intensity, Carbon dioxide, Temperature & Chlorophyll
Limiting factor: Light intensity
As light intensity increases, rate of photosynthesis also increases as there is more light energy so the reaction increases & is faster
Limiting factor: Carbon dioxide
As carbon dioxide increases, rate of photosynthesis also increases until it hits another limiting factor
Limiting factor: Chlorophyll
As amount of chlorophyll increases, rate of photosynthesis also increases until it hits a different limiting factor
Limiting Factor: Temperature
As light intensity increases, rate of photosynthesis also increases until a certain temperature where it decreases as the enzyme becomes denatured
Why do plants require mineral ions
They are required for growth absorbed by active transport in the soil
Why is magnesium needed for plants
Magnesium is required to make chlorophyll
Why are nitrate ions needed in plants
They are needed to produce amino acids/proteins
Adaptations of waxy cuticle
Impermeable to water therefore it prevents evaporation
Adaptations of upper epidermis
Transparent to allow light through and it also protects the surface of the leaf
Adaptations of lower epidermis
Contains stomata and guard cells which allow carbon dioxide and oxygen to enter and leave the leaf. The stomata also controls the amount of water vapour that leaves the cell
