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Biology Test > Photosynthesis > Flashcards

Photosynthesis Flashcards

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1
Q

What does photosynthesis do?

A

Converts light energy to chemical energy

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2
Q

What produces its own food?

A

Autotrophs

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3
Q

What obtains organic material from other organisms?

A

Heterotrophs

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4
Q

Pores where CO2 enters and O2 exit from

A

Stomata

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5
Q

Where are chloroplasts found?

A

Mesopyll

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6
Q

Sacs that hold chlorophyll

A

Thylakoid

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7
Q

The fluid in chloroplasts

A

Stroma

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8
Q

Photosynthesis reaction

A

6CO2 + 12H2O + Light energy —> C6H12O2 + 6H2O

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9
Q

What is a redox reaction?

A

A reaction with reduction and oxidation

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10
Q

What type of reaction is photosynthesis?

A

Redox reaction

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11
Q

What is oxidized in photosynthesis?

A

Water

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12
Q

What is reduced in photosynthesis?

A

CO2

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13
Q

What 2 things does photosynthesis consist of?

A

Light reactions
Calvin cycle

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14
Q

Where do light reactions take place?

A

Thylakoid

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15
Q

What are the steps of the light reactions?

A

Split water
Release oxygen
Reduce NADP+ to NADPH
Generate ATP from ADP

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16
Q

Where does the Calvin cycle take place?

A

Stroma

17
Q

What goes into Calvin cycle and what comes out?

A

CO2 goes in
Sugar (CH2O) comes out

18
Q

What happens to a chlorophyll electron when it absorbs light?

A

The electron is elevated to a higher energy level

19
Q

What is the electron donor of the light reactions?

A

Water

20
Q

The photosynthetic electron transport chain consists of 2 photosystem series. What are they, in order?”

A

Photosystem II
Photosystem I

21
Q

What do ATP and NADPH produce in the second stage of the Calvin cycle?

A

Triose phosphate molecules

22
Q

What are the 3 steps of the Calvin cycle?

A

Fixation
Reduction
Regeneration

23
Q

What goes into light reactions and what comes out?

A

Water goes in
Light goes in
NADP+ and ADP go in from Calvin cycle
Oxygen comes out
ATP and NADPH come out to Calvin cycle

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