Chapter 13: Photosynthesis Flashcards

1
Q

chlorophyll

A

a green pigment that absorbs energy from light, used in photosynthesis

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2
Q

a green pigment that absorbs energy from light, used in photosynthesis

A

chlorophyll

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3
Q

light-dependent stage

A

the first series of reactions that take place in photosynthesis; it requires energy absorbed from light

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4
Q

the first series of reactions that take place in photosynthesis; it requires energy absorbed from light

A

light-dependent stage

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5
Q

light-independent stage

A

the final series of reactions that take place in photosynthesis; it does not require light but does need substances that are produced in the light-dependent stage.

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6
Q

the final series of reactions that take place in photosynthesis; it does not require light but does need substances that are produced in the light-dependent stage.

A

light-independent stage

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7
Q

photolysis

A

splitting a water molecule, using energy from light

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8
Q

splitting a water molecule, using energy from light

A

photolysis

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9
Q

photophosphorylation

A

producing ATP using energy that originated as light

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10
Q

producing ATP using energy that originated as light

A

photophosphorylation

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11
Q

NADP

A

a coenzyme that transfers hydrogen from one substance to another, in the reactions of photosynthesis

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12
Q

a coenzyme that transfers hydrogen from one substance to another, in the reactions of photosynthesis

A

NADP

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13
Q

Calvin cycle

A

a cycle of reactions in the light-independent stage of photosynthesis in which carbon dioxide is reduced to form carbohydrate

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14
Q

a cycle of reactions in the light-independent stage of photosynthesis in which carbon dioxide is reduced to form carbohydrate

A

Calvin cycle

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15
Q

stroma

A

the background material in a chloroplast in which the light-independent stage of photosynthesis takes place

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16
Q

the background material in a chloroplast in which the light-independent stage of photosynthesis takes place

17
Q

lamellae

A

membranes found within a chloroplast

18
Q

membranes found within a chloroplast

19
Q

thylakoid membranes

A

the membranes inside a chloroplast that enclose fluid-filled sacs; the light-dependent stage of photosynthesis takes place in these membranes

20
Q

the membranes inside a chloroplast that enclose fluid-filled sacs; the light-dependent stage of photosynthesis takes place in these membranes

A

thylakoid membranes

21
Q

thylakoid spaces

A

fluid-filled sacs enclosed by the thylakoid membranes

22
Q

fluid-filled sacs enclosed by the thylakoid membranes

A

thylakoid spaces

23
Q

photosynthetic pigments

A

coloured substances that absorb light of particular wavelengths, supplying energy to drive the reactions in the light-dependent stage of photosynthesis

24
Q

coloured substances that absorb light of particular wavelengths, supplying energy to drive the reactions in the light-dependent stage of photosynthesis

A

photosynthetic pigments

25
absorption spectrum
a graph showing the absorbance of different wavelengths of light by a photosythetic pigment
26
a graph showing the absorbance of different wavelengths of light by a photosythetic pigment
absorption spectrum
27
photosystem
a cluster of light-harvesting pigments surrounding a reaction centre
28
a cluster of light-harvesting pigments surrounding a reaction centre
photosystem
29
reaction centre
the part of a photosystem towards which energy from light is funnelled; it contains a pair of chlorophyll a molecules, which absorb the energy and emit electrons
30
the part of a photosystem towards which energy from light is funnelled; it contains a pair of chlorophyll a molecules, which absorb the energy and emit electrons
reaction centre
31
chromatography
a technique that can seperate substances in a mixture according to their solubility in a solvent
32
a technique that can seperate substances in a mixture according to their solubility in a solvent
chromatography
33
Rf value
a number that indicates how far a substance travels during chromatography, calculated by dividing the distance travelled by the substance by the distance travelled by the solvent
34
a number that indicates how far a substance travels during chromatography, calculated by dividing the distance travelled by the substance by the distance travelled by the solvent
Rf value
35
action spectrum
a graph showing the effect of different wavelengths of light on a process, for example the rate of photosynthesis
36
a graph showing the effect of different wavelengths of light on a process, for example the rate of photosynthesis
action spectrum