Photosynthesis word equation
Carbon dioxide + water -> glucose + oxygen
Respiration word equation
Glucose + oxygen -> carbon dioxide + water
Photosynthesis symbol equation
6CO2 + 6H2O -> C6 H12 O6 + 6O2
Respiration symbol equation
C6 H12 O6 + 6O2 -> 6CO2 + 6H2O
Respiration
Chemical process in living cells that releases energy from food (like glucose) to fuel life processes
Photosynthesis
Organisms use sunlight energy to convert carbon dioxide and water into glucose
Uses of glucose (5)
- respiration
- stored as starch
- makes amino acids (proteins)
- makes cellulose
- fats and oils
Uses of respiration
- muscle contraction
- keeps organisms warm
- make large molecules
Aerobic respiration
Excess of oxygen
eg. Long distance runs, regular functions of plants
Anaerobic respiration
No oxygen
Anaerobic respiration humans conversion
Glucose -> lactic acid
Anaerobic respiration in plants
name and equation
Fermentation
Glucose -> ethanol + carbon dioxide
limiting factors of photosynthesis
- light intensity
- co2 levels
- temperature
how to change light intensity in lab
move lamp / light source closer to plant
what happens when too much heat is exposed to plant in photosynthesis
enzymes become damaged and further denatured (alters shape)
what do greenhouses do
- trap sun’s heat -> make sure that temperature doesnt become limiting
how can temperature be altered in a greenhouse
increased:
- heater
decreased:
- shades
- ventilation
how can light be altered in greenhouse
- artificial light
how can CO2 be altered in greenhouse
paraffin heater (increase)
