Photosynthesis Flashcards

Na

1
Q

Where does carbon Dioxide enter the leaf

A

Stomata

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2
Q

What part of the chloroplasts contains chlorophyll?

A

Thylakoid memrane

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3
Q

What captures the sunlight in leaf

A

Thylakoid memrane

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4
Q

In a leaf where does CO2 combine with H20 to form sugar

A

Stroma

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5
Q

Where is Stroma found

A

Inside chloroplasts

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6
Q

Fluid that surronds the stacks of thylakoids?

A

Stroma

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7
Q

2 parts of photosynthesis

A

Light Reaction: Where the chlorophyll absorbs sunlight

Calvin Cycle

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8
Q

Where does the Calvin cycle happen

A

Stroma

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9
Q

Where does light reactions take place?

A

Thylakoids

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10
Q

Oxidation is the _____ of electrons

A

Loss

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11
Q

Reduction is the _____ of electrons

A

Gain

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12
Q

Why do we see plants as green?

A

Chlorophyll is green because it absorbs all other other colors and reflects green

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13
Q

Carotenoids absorb which colors and relect which

A

Violet,blue,green

Yellow and oranges

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14
Q

What does the various symbols in this equation mean: 6CO² + 6H²O ( -> Light -> ) C ⁶H¹²O⁶ + 6O²

A

6 carbon dioxide + 6 water and light Make Glucose & 6 Oxygen

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15
Q

Which molecules do light reactions produce?

A

ATP & NADPH

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16
Q

Where does the light reaction take place?

A

Thylakoid Membrane

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17
Q

Where is the site if the Kalvin Cycle?

A

Stroma

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18
Q

Cholophyll A & B reflect which colors?

A

Greens

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19
Q

Light energy is converted to ____ energy in the ____ stages of photosynthesis.

A

Chemical/ light

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20
Q

Which of the following are either used or produced by autotrophs during photosynthesis.

Fat, kinetic energy, oxygen, RNA, Co², Water, Solar Energy, Protein, Carbohydrate, ATP,

A

Oxygen, Co², Water, Solar Energy, Carbohydrate, ATP,

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21
Q

What is the role of plant pigments in photosynthesis

A

Absorb the light

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22
Q

Label Structures of a leaf MAKE IMAGES

A

Xxxx

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23
Q

Inputs from the light reactions are:

A

Solar Energy, Water, ADP+P, NADP+

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24
Q

Outputs from the light reactions:

A

Oxygen, ATP, NADPH

25
Inputs from the Calvin Cycle:
Co2, ATP, NADPH
26
Output from the Calvin Cycle:
G3P a small sugar not quite Glucose
27
What is a photo system? What does it consist of?
A phtosystem is a complex that absorbs solar energy via a pigment complex and high energy electrons are generated. A pigment complex and electron acceptor
28
Where do photosystems occur?
Thylakoid membrane
29
In photosystem II electrons are passed from one pigment to another until they are concentrated where?
A pair of chlorophyll a molecules called Reaction Centers
30
Electrons become so energetic that they leave the reaction center and move where?
Electron Acceptor Molecules
31
Describe Photosystem II. Inputs Outputs
Phtosystem concentrates the light energy into a Reaction Center Causing release of high energy electrons which is taken in an Electron Acceptor Passed to Electron Transport Chain Inputs: Water, Co², Sunlight, ADP + P Outputs: ATP and Oxygen
32
Describe Photosystem I Inputs Outputs
Sunlight is collected by Photosystems and Electrons are relased These Electrons are used to Reduce NADP+ to NADPH Inputs: Electrons, Light, NADP+ H+ Outputs NADPH Outputs: ATP and Oxygen
33
Why doesn't Photosystem II lose all its Electrons?
Photolysis breaks H2O into available electrons and produces Oxygen as a side affect
34
What happens to the products of the light cycle? What are they? Is the light dependant reactions Endergonic or Exergonic?
They are used to give energy for the Calvin Cycle. ATP and NADPH Exergonic
35
Which cycle is NADP+ found in
Light dependant cycle
36
3 parts of Calvin Cycyle
CO2 fixation CO2 Reduction Regeneración of RuBP
37
Requirements for Calvin Cycyle
ATP, NADPH , CO2
38
Calvin cycle fixes Carbon to ______
RuBP
39
Carbon fixed to RuBP prodcues
G3P
40
_____ is used in Co2 fixation and must be replaced
RuBP
41
What is produced in the Calvin Cycle
G3P
42
What fixes Co2
RuBP
43
Photorespiration is
When the plant produces Co2
44
How do plants procude Co2
Combine O2 with RuBP
45
Type of photosynthesis here in Mi
C3
46
C4 plants instead of using RuBP use
PEP
47
Where are C4 plants located
Hot dry climates
48
CAM photosynthesis Stands for:
Crassulacean-acid metabolism
49
CAM partation Carbon Dioxide fixation by _____
Time
50
When do CAM plants fix Co2
Night
51
CAM plants during the day light
Absorb Sunlight & Store ATP & NADPH
52
C4 plants ideal climate
Hot Dry
53
CAM plants are best suited to
Extreme Aridity
54
Initial Co2 acceptor for C3
RuBP
55
C4 initial Co2 acceptor
PEP
56
Example of a C3, C4, CAM
Sunflower, Sugarcane, Cacti
57
Which things use photosynthesis
Plants, algea, some bacteria
58
Difference between NADH & NADPH
NADH is used in cellular respiración NADPH is used in photosynthesis
59
Diagram on 117
Test