quiz 9.22.21 Flashcards by aspen robertson

Q

all food we eat comes from…

A

photosynthesis

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Q

all oxygen we breath comes from…

A

photosynthesis

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Q

main source of energy for all life…

A

the sun

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Q

kinetic energy…

A

energy in motion

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Q

potential energy…

A

stored energy-not moving

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Q

the higher something is…

A

the more energy its storing

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Q

almost all plants are

A

photosynthetic

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Q

generates its own matter

A

phototrophs and autotrophs

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Q

sunlight is energy stored as…

A

chemical bonds

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Q

what percent of photosynthesis takes place in the leaves

A

90-95%

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Q

xanthophyll

A

yellow pigment

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Q

carotene

A

orange pigment

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Q

chlorophyll

A

green pigment

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Q

element compound

A

6 CO2 + 6 H2O, light energy, C6H12O6 + 6 O2

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Q

light reaction

A

H2O + light energy ——>O2

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Q

calvin cycle

A

CO2 ——> glucose

Q

chloroplast contains

A

stroma, a fluid, and grana

Q

carbon fixation

A

calvin cycle “fixes” carbon dioxide into glucose

Q

NADPH & ATP from light reaction provide…

A

hydrogen and energy to power dark reaction

Q

(temp) photosynthesis best occurs at

A

35 degrees celcius

Q

(light intensity) photosynthesis best occurs at

A

1/3 summer sunlight

Q

some leaves are shaded, so photosynthesis works best for whole plant at

A

more than 1/3 sunlight