Bio110 Chapter 8 Photosynthesis

Front 1

When energy within light is captured and used to synthesis carbohydrates

Back 1

Photosynthesis

Front 2

In photosynthesis CO2 is

Back 2

reduced

Front 3

In photosynthesis H2O is

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oxidized

Front 4

Regions on the surface of the Earth and in the atmosphere where living organisms exist

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biosphere

Front 5

Life in the biosphere is largely driven by
the _________ power of green plants

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photosynthetic

Front 6

Must eat food, organic molecules from their environment, to sustain life

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Heterotroph

Front 7

Heterotroph and autotroph are

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Trophic Levels

Front 8

Make organic molecules from inorganic sources

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Autotroph

Front 9

Use light as a source of energy, ex. Green plants, algae, cyanobacteria

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Photoautotroph

Front 10

Organelles in plants and algae that carry out photosynthesis

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Chloroplast

Front 11

green pigment

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Chlorophyll

Front 12

Majority of photosynthesis occurs in leaves in

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the mesophyll

Front 13

the internal part of the leaf where cells with chloroplasts exist

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mesophyll

Front 14

CO2 enters the leaf and O2 leaves through the

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stomata

Front 15

thylakoid membrane contains pigment molecules including chlorophyll

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3rd membrane

Front 16

stack of thylakoids

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Granum

Front 17

fluid filled region between thylakoid membrane and inner membrane

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Stroma

Front 18

2 Stages of Photosynthesis

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Light reactions and Calvin cycle

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light reactions take place in

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thylakoid membranes

Front 20

Light reactions produce

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ATP, NADPH and O2

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Occurs in stroma

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Calvin cycle

Front 22

The Calvin cycle uses ____ and _____ to incorporate CO2 into organic molecules

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ATP, NADPH

Front 23

NADPH is similar to NADH in that it
carries/transports 2 electrons

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2 electrons

Front 24

NADPH differs from NADH in that it has an additional

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phosphate group

Front 25

Type of electromagnetic radiation

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Light Energy

Front 26

distance between the peaks in a wave pattern

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Wavelength

Front 27

Light energy travels as

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waves

Front 28

Shorter wavelengths have ____ energy

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more

Front 29

Molecules that can absorb light energy

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Pigments

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absorbs some light energy and reflect others

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photosynthetic pigments

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All wavelength reflected

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white

Front 32

All wavelengths absorbed

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black

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_____ boosts electrons to higher
energy levels

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Absorption

Front 34

After an electron absorbs energy, it is an excited state and

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usually unstable

Front 35

Excited electrons in pigments can be _______ to another molecule or
“captured”

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transferred

Front 36

attaches the pigment to the surface of proteins in the thylakoid membrane

Back 36

Porphyrin ring with a
phytol tail