Chapter 8 Flashcards

1
Q

Process that manufactures _________

A

Sugar (glucose)

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2
Q

What is photosynthesis

A

Process that manufactures sugar (glucose)

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3
Q

CO2+2H2O+light energy > (CH2O)n + H2O+O2
^ carbon dioxide ^formaldehyde

A

Reverse of oxidative respiration

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4
Q

Producers

A

Autotrophs

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5
Q

Organism that eats other plants of animals for energy and nutrients

A

Heterotrophs

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6
Q

How many set of reactions does photosynthesis have ?

A

2

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7
Q

Where does photosynthesis occur

A

In the chloroplast

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8
Q

Is photosynthesis light dependent ?

A

Yes

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9
Q

Creates O2 from (H2O ATP) and NADPH
Light ^energy

A

Photosynthesis

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10
Q

Photosynthesis creates __________ using CO2

A

Glucose

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11
Q

Organelle which captures photo of light from the sun

A

Chloroplast

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12
Q

Chloroplast converts H20+_______ = glucose

A

CO2

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13
Q

Reactions occur in the _________ of chloroplast

A

Thylakoids

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14
Q

What’s inside the chloroplast

A

Thylakoids
Lumen
Stroma
Chlorophyll

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15
Q

Light dependent, vesicle like structure

A

Thylakoids

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16
Q

Space inside the thylakoid

A

Lumen

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17
Q

Fluid-filled space between thylakoids

A

Stroma

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18
Q

In the thylakoid membrane, absorb blue/red light
Transmit green light

A

Chlorophyll

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19
Q

Absorbs photons of light
-packet of light containing energy
-wave or particle

A

Chlorophyll

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20
Q

Different energy absorbing pigment

A

Carotenoid

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21
Q

Absorbs wavelengths chlorophyll doesn’t

A

Carotenoids

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22
Q

Protect chlorophyll and others from destructive UV radiation
-sunscreen for plants

A

Flavonoids

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23
Q

What happens when pigments absorb photons ?

A

Increases energy state of electron

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24
Q

______ chlorophyll molecules per thylakoid

A

200-300

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25
What is grouped into complexes called photosystems containing
Chlorophyll molecules
26
Antenna complex
Red or blue photon strikes
27
Reaction center
Electromagnetic energy>>>> chemical energy
28
Contains photosystem 1 and photosystem 2
Reaction center
29
Moves electrons -also moves H+ (protons) across thylakoid membrane
Plastoquinone (PQ)
30
Creates gradient Later this gradient will be used to make _____
ATP
31
Accepts electron Moves it to ETC
Pheophytin
32
Delete
L o
33
What system uses ferredoxin to shuttle electrons and photons
How photosystem 1 works
34
Makes NADPH from NADP+
Photosystem 1
35
How do the two systems work together ?
Zscheme Notice PC (plastocyanin) moves electron from photosystem 2 to 1
36
Photosystem 2 sends electron to ETC —adds to ATP production hint ___…phosphorylation
Cyclic Phosphorylation
37
ATP and NADPH now used to make ______
Glucose
38
ATP and NADPH now used to make glucose Light _____ reaction
Happens during light independent reaction
39
Calvin cycle
Happens during light INDEPENDENT reactions
40
3 phases for Calvin cycle
Fixation, reduction , regeneration
41
Occurs in the chloroplast Stroma occurs in ______ ________ cycle
Light independent cycle
42
Ribulose biphosphate reacts with CO2 during
Happens during fixation
43
Produces ___ carbon compound
6 (Happens during fixation)
44
When does it split in two> 3-phosphoglerate
Happens during fixation
45
Rubisco enzyme happens
Happens during fixation
46
When is CO2 used ?
Happens during fixation
47
When does ATP phosphorylates 3-phosphoglycerate happen?
Happens during reduction
48
When does NADPH reduce it
Happens during reduction
49
When does Together these products glyceraldehyde 3-phosphate (G3P) happen -a little goes to glucose
Happens during reduction
50
What happens during regeneration Some G3P is used to regenerate _____
RuBP 2 turns to make 1 glucose molecule
51
Some G3P is used to regenerate RuBP
Happens during regeneration
52
2 turns to make 1 glucose molecule
Regeneration
53
Photorespiration
Reverse photosynthesis
54
What happens if O2 levels climb inside a plant cell
Photorespiration
55
Oxygen out-competes CO2 in Rubisco
Happens if O2 levels climb inside a plant cell
56
How does CO2 get to rubisco
Stomata
57
Stomata
2 guard cells Creates pore when CO2 levels inside drop
58
Why aren’t stomata open all the time ?
Water loss Will close if it is hot and dry during the day
59
CAM Approach
Desert plants
60
C4 plants
85% of plants
61
C-4 plants Organic acids release ____ to ______ stockpile C02 where rubisco is not active
4-c organic acids release CO2 to rubisco Stockpile CO2 where rubisco is not active
62
CAM Plants Stockpile _____ at night _____ is not active in them
Stockpile CO2 at night Rubisco is not active in them
63
What happens after glucose is made
2 G3P make a glucose molecule -produce sucrose -these are linked to make starch
64
Overall equation
12H20+6CO2+12NADPH+18ATP->12NADP++18ADP+Pi