Photosynthesis Flashcards
Why is respiration needed?
Living organisms need energy to perform life process and maintain homeostasis
Homeostasis
Body maintains balance
Heterotrophic organisms
Dependent on green plants for energy
Autotrophic organisms
Green plays that produce organic food from inorganic components and radiant energy
Inorganic components
Mineral salts and water
Photosynthesis main phases
Light dependent
Light independent
Light dependent:
Granum
Takes place as long as light is available
>sunlight absorbed by chlorophyll
Light independent
Stroma
Take place at any time of the day as long as light products are available
Photosynthesis process
- Radiant energy is absorbed by chlorophyll
- Converted into chemical potential energy
Photosynthesis equation
6CO2+ 6H2O+radiant energy —> C6H12O6+6O2
After photosynthesis
Glucose is made
Plants convert glucose to starch
Excess is stored as fats and oils
Why is glucose converted to starch
Starch is insoluble in water : will not influence water balance
Importance of photosynthesis
Maintain of oxygen-carbon dioxide balance in environment
Only way radiant energy can be made for heterotrophic plants