Photosynthesis 1 - Chlorophyll Extraction Lab Flashcards

1
Q

independent variable

A

wavelength, light

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2
Q

dependent variable

A

absorbency

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3
Q

what type of reaction is photosynthesis

A

light driven reaction

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4
Q

relationship between energy & wavelength

A

inverse

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5
Q

what do chlorophylls absorb best

A

blue light

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6
Q

what does chlorophyll A absorb best

A

red

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7
Q

400-450 wavelength color

A

blue

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8
Q

500-550 wavelength color

A

green

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9
Q

700-750 wavelength color

A

red

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10
Q

3 pigments used

A
  • petroleum ether
  • ethanol
  • methanol
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11
Q

chlorophyll in petroleum ether

A

chlorophyll A

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12
Q

chlorophyll in ethanol

A

carotene

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13
Q

chlorophyll in methanol

A

chlorophyll B

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14
Q

density of petroleum ether

A

low density

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15
Q

where was chlorophyll A stored in the test tube

A

on top bc petroleum ether had low density

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16
Q

what density did methanol have

A

high denisty

17
Q

where was chlorophyll B stored in the test tube

A

on the bottom bc methanol had high density