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Home | Vocab | Light and Dark reactions | The equation for photosynthesis | What goes in and out

This is where you can learn the Vocab obout photosynthesis so you can understand what I talk about in this site.

Pigment- A substance (chlorophyll) that can make things different colors.
Water- Enters the leaf and is used during light reaction.
Leaves- Structures that grow out of the plant. This is where sugar and most of photosynthesis occurs.
Light Reaction- The 1st stage of photosynthesis where the leaf uses the sun to heat up the molecules.
Dark Reaction- The 2nd stage of photosynthesis where after the hydrogen gets to the other part of the leaf, the CO2 (carbon dioxide), that we breath out, mixes with the hydrogen and gets fused using ATP, making sugar/starch.
Carbon Cycle- The process where people and animals breathe in oxygen, exhale out Co2, the plant takes in Co2, and pushes out oxygen, and the whole process starts again.
CO2- (Carbon Dioxide) A colorless, odorless, incombustible gas.
Sugar- Made when hydrogen and Co2 mix with atp.
Guard cells- Cells that open and close to let oxygen and water vapors out.
Palisade cells- Thin cells under the upper epidermis, positioned to catch the most light.
Stoma- Small holes where gasses and water pass through the leaf.
ATP- A product of light reaction, and has a lot of energy.  Also, is needed for dark reaction.
Starch- A wite substance found in plants, made in the dark reaction.
Upper epidermis- The upper, outer skin of the leaf.
Lower Epidermis- The lower layer of protective cells where the guard cells are.
Spongy Cells- Cells below the palisade cells with spaces like sponges so that gasses can pass through.
Chloroplasts- Small cells containing chlorophill.
Chlorophyll- A pigment that is inside chloroplasts.