photosynthesis Flashcards
what is photosynthesis
photosynthesis is a reaction that occurs in the chloroplasts of organisms that uses light energy to synthesise organic compounds
what is the structure of the chloroplast (membrane)
it has a double membrane
function of thylakoids
Are small disc structures that absorb light energy
what are grana
Are piles of thylakoids
what is a granum
is a one grana
what is the inner area of the thylakoid known as
the thylakoid lumen
what is the stoma
the stoma is the gel-like matrix rich in enzymes that surrounds the thylakoids
what structure absorbs most of the light
the chlorophyll
what is the chlorophyll
A pigment in the thylakoid membrane
what is the net equation for photosynthesis (word)
carbon dioxide + water >(light)> glucose + oxygen
what is the net equation for photosynthesis (symbol)
6CO2 + 6H2O > (chlorophyll) > C6H12O6 + 6O2
what are the two stages of photosynthesis
- the light-dependent reaction
- the light-independent reaction
where does the light-dependent stage
the thylakoid membrane and lumen.
describe the light-dependent stage
During this process, the light energy from the sun is absorbed into the chlorophyll pigments. The energy causes water molecules to split into oxygen gas and hydrogen ions
where does the light-independent stage occur
the stroma of the chloroplast
