Photosynthesis Flashcards
How much energy that reaches the earth from the sun is used by photosynthesis
1%
What does photosynthesis do
Provides energy for living organisms
Provides building blocks for living organisms
What is photosynthesis
Transformation of light energy to chemical energy… produces O2
In which ways do plants play a crucial ecological role
- Capture energy that other organisms use
- help maintain the atmosphere
- build and protect soil
- help keep ecosystems moist
How do plants provide shelter
they provide wood, that is used to build houses
How do plants provide fuel
- wood for fires
- coal, which is just ancient plant remains
How do plants provide medicine
-Pain killers such as aspirin and codeine
-Heart medication digoxin
-Cancer treatments Taxol and vinblastine
Where do plants get their energy
sunlight
where does plant energy conversion from sunlight take place
chloroplasts
What is stomata
small pores in leaves that co2 enters and o2 exits from
photosynthesis reactant
co2
what is reduced and what is oxidized in photosynthesis
reduced> co2
oxidized> water
how is water absorbed and delivered to the leaves
absorbed through roots, delivered via veins
where does the o2 produced in photosynthesis come from?
comes from water
shortest and longest wavelengths
shortest> gamma rays
longest> radio waves
