Chapter 8 - Photosynthesis Flashcards Preview

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Flashcards in Chapter 8 - Photosynthesis Deck (20):
1

photosystem I

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2

photosystem II

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3

Cyclic photophosphorylation

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4

Non-cyclic photophosphorylation

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5

photosynthesis (defn and formula)

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* Formula: 6CO2 + 6H2O -> C6H12O6 + 6H2O + 6O2

6

light dependent reactions

* capture energy from sunlight
* make ATP and reduce NADP+ to NADPH

7

light independent reactions

* also called carbon fixation reactions
* use ATP and NADPH to synthesize organic molecules from CO2

8

chlorophyll

* chlorophyll a – primary pigment in plants and cyanobacteria that absorbs violet-blue and red light
* chlorophyll b – secondary pigment absorbing light wavelengths that chlorophyll a does not absorb

9

stroma

semiliquid substance surrounding thylakoid membranes

10

thylakoid

* In the chloroplast
* internal membrane arranged in flattened sacs
* contains chlorophyll and other pigments

11

grana

stacks of thylakoid membranes

12

chloroplast

An organelle in plant cells where photosynthesis takes place.

13

Calvin Cycle

* biochemical pathway in photosynthesis that allows for carbon fixation
* occurs in the stroma
* uses ATP and NADPH as energy sources
* incorporates CO2 into organic molecules

14

ribulose biphosphate carboxylase

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15

rubisco

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16

CAM

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17

C3

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18

C4

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19

NADPH

* Reduced NADP
* Made by light-dependent reactions
* Used by carbon-fixation reactions to synthesize organic molecules from CO2.

20

photon

* a particle of light
* acts as a discrete bundle of energy
* energy content of a photon is inversely proportional to the wavelength of the light