BIO 120 photosynthesis

CO2

Autotrophs produce organic molecules from?

chloroplasts

What organelle does photosynthesis occur in?

stroma

the fluid that surrounds the chloroplasts and house the enzymes important for photosynthesis

thylakoids

the disk-like structures suspended in the stroma of a chloroplast that absorb sunlight during photosynthesis

chlorophyll; thylakoid

what pigment gives plants their green color and what structure of th chloroplast is it located in?

more

The shorter the wavelength, the __________ amount of energy

reflected; absorbed

colors we see are ___________ and colors we dont are _______________

blue; red

chlorophyll absorbs ____________ and _______________

green

chlorophyll reflects ____________

accessory pigment

aids chlorophyll in absorbing energetic rays of different wavelengths and pass along absorbed energy to chlorophyll

photon

discrete bundle of energy

light reaction

step 1 of photosynthesis: energy is harvested from the sun using light

thylakoid

where does the light reaction take place?

photosytem 2; boosted; O2; H+

step 1 light reaction: where does this take place? Electrons are __________ to higher energy levels and produce ____ and __________ from the splitting of water

ETC; energy; H+

step 2 light reaction: where does this take place? Electrons fall to lower levels and provide _________ for ATP when _________ are pumped into the thylakoid

photosytem 1; high; light

step 3 light reaction: where does this take place? Electrons are boosted to _______ energy levels again when stimulated by more ________ energy

ETC; NADP+; NADPH

step 4 light reaction: where does this take place? Electrons fall to lower energy levels again and said electrons and hydrogen are transferred to ____________ and reduced to __________

Calvin cycle

Uses ATP from light reactions to synthesize sugars

stroma

where does calvin cycle take place?

carbon fixation; 6

phase 1 of calvin cycle: carbon is incorporated into cycle and ______ molecules of PGA is made

Reduction; 6

phase 2 of calvin cycle: ATP and NADH from light reaction is used. Produces ___________ G3P

Regeneration of RuBP; 5

phase 3 of calvin cylce: ______ of the G3P are used to regenerate RuBP