Photosynthesis And Limiting Factors Flashcards
What does photosynthesis do
Use energy to change carbon dioxide and water into glucose and oxygen
What type of reaction is photosynthesis
Endothermic. Energy is transferred to environment during
What is symbol equation for photosynthesis
6(CO2) + 6(H2O) —> (C6H12O6) + 6(O2)
What do plants use glucose for
- For respiration
- Making cellulose
- Making amino acids
- Stored as oils or fats
- Stored as starch
Why is glucose converted into cellulose
To make strong plant cell walls
How does glucose make amino acids
Combined with nitrate ions from the soil
Why is glucose turned into lipids
To store seeds
Where is starch stored In plants
Roots, stems and leaves
Why is glucose turned into starch
So it can be used when photosynthesis isn’t happening like in winter.
Why is it good that starch is insoluble
Better for storing than glucose bc glucose would draw in lots of water and swell up
What is the rate of photosynthesis effected by
Light intensity
Concentration of CO2
Temperature
Amount of chlorophyll in plant
What is the limiting factor of photosynthesis at night
Light intensity
What is the limiting factor of photosynthesis in winter
Temperature
What can the amount of chlorophyll be affected by
Disease
Environmental stress
This causes chloroplasts to become damaged or not make enough chlorophyll
