photosynthesis Flashcards
what are chloroplasts
flattened organelles surrounded by a double membrane, found in plant cells
what are grana
stacked up thylakoids in the chloroplasts
what are thylakoids
fluid filled sacs
how are the grana linked together
by bits of thylakoids called lamellae
what 3 pigments do photosynthetic pigments do chloroplasts contain
chlorophyll a, chloroplyll b and carotene
what do photosynthetic pigments do
absorb light energy needed for photosynthesis
where are photosynthetic pigments found?
in the thylakoid membranes attached to proteins
what are the two photosystems used by plants to capture light energy
photosystem I and photosystem II
what wavelengths do the two photosystems absorb
PSI absorbs 700nm and PSII abosrbs 680nm
what is the stroma
the gel like susbstance that contains enzymes, sugars and organic acids
what are unused carbohydrates stored as
stored as starch grains in the stroma
