Slide Set 8 - Photosynthesis

Light travels as waves, in energy packets we call _____

photons

Wavelength and energy are ______ related

inversely

photosynthetic pigments absorb light in the range of ________ nm

400-700nm (visible spectrum)

what pigment appears green, but absorbs violet, red, and orange light?

Chlorophyll a

Photosynthesis converts ______ energy into _____ energy

light energy, chemical energy

What is the photosynthesis reaction?

6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O

_______ are producers while _______ are consumers

phototrophs, heterotrophs

Light dependent reactions occur in the _______

thylakoid membrane of the chloroplast

Light independent reactions occur in the _______

Stroma of the chloroplast

what does the splitting of water provide in the light-dependent reactions?

oxygen, protons, and electrons to form a gradient

What are the two energy carriers produced in the light-dependent reactions

NADPH and ATP

What gas is produced by the light-dependent reactions?

Oxygen (O2)

What stimulates photosystem II to split water (photolysis)?

light!

what is another name for the light-independent reaction?

the calvin cycle

what two molecules drive the calvin cycle?

ATP and NADPH

What is a limitation of the calvin cycle? (specifically caused by rubisco)

photorespiration!! (release of CO2 reduces efficiency by 25%)

What kind of reaction is photosynthesis?

REDOX (reduction-oxidation)