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Biology - 6th Year > Photosynthesis 2 > Flashcards

Photosynthesis 2 Flashcards

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1
Q

What is it

A

Plants making own food through light energy

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2
Q

Produces

A

Oxygen

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3
Q

responsible for forming

A

Fossil fuels

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4
Q

Removes what from air

A

Co2

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5
Q

Equation

A

6Co2 +6H2o -> C6 H 12 06 + 6o2

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6
Q

What does it require

A

Co2
Water
Light energy
Chlorophyll

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7
Q

Produces

A

Oxygen and glucose

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8
Q

Converts

A

Light energy to chemical energy

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9
Q

Saturation point

A

No more light can be absorbed and photosynthesis levels off

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10
Q

Water is absorbed from soil by roots by..

A

Osmosis

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11
Q

External source

A

Leaves getting c02 from stomata

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12
Q

Internal source

A

Leaves acquire co2 from own cellular respiration in cells

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13
Q

Artificial Co2

A

Burning gases in a green house

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14
Q

Sure if light stage

A

Chloroplast

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15
Q

Light stage

A

Light energy absorbed by chlorophyll molecule
Passes though pigments of molecules to reaction center in chlorophyll
Electrons become energized + leave the chlorophyll molecule
Energized electrons enter 2 pathways

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16
Q

Pathway 1

A

Energized electrons are passes along an electron acceptor
Loses energy along the way
This lost energy is combined with ADP + P = atp

17
Q

Another name for pathway 1

A

Cyclic photophosphorylation

18
Q

Pathway 2

A

2 energized electrons trapped by NADP+ form NADP-
Photolysis occurs
ATP made
Electrons lose some energy (doesn’t return)
These electrons join onto NADP+ and a proton to form NADPH

19
Q

Photolysis

A

Light energy splits water into protons, electrons and oxygen

20
Q

ATP

A

Provides energy for the convention of co2 into carbohydrates

21
Q

NADPH

A

Supplies h+ ions and ejections which are used in the dark stage

22
Q

Dark stage is controlled by

A

Enzymes

23
Q

What is important about the plant in dark stage

A

It has optimum pH and temperature

24
Q

Where does the dark stage occur

A

Chloroplast

25
Q

NADPH is

A

Electrons and protons

Biology - 6th Year (21 decks)

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