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Biology > Photosynthesis > Flashcards

Photosynthesis Flashcards

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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
Q

Inputs from the Calvin Cycle:

A

Co2, ATP, NADPH

26
Q

Output from the Calvin Cycle:

A

G3P a small sugar not quite Glucose

27
Q

What is a photo system? What does it consist of?

A

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
Q

Where do photosystems occur?

A

Thylakoid membrane

29
Q

In photosystem II electrons are passed from one pigment to another until they are concentrated where?

A

A pair of chlorophyll a molecules called Reaction Centers

30
Q

Electrons become so energetic that they leave the reaction center and move where?

A

Electron Acceptor Molecules

31
Q

Describe Photosystem II.

Inputs
Outputs

A

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
Q

Describe Photosystem I

Inputs

Outputs

A

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
Q

Why doesn’t Photosystem II lose all its Electrons?

A

Photolysis breaks H2O into available electrons and produces Oxygen as a side affect

34
Q

What happens to the products of the light cycle? What are they?
Is the light dependant reactions Endergonic or Exergonic?

A

They are used to give energy for the Calvin Cycle.

ATP and NADPH

Exergonic

35
Q

Which cycle is NADP+ found in

A

Light dependant cycle

36
Q

3 parts of Calvin Cycyle

A

CO2 fixation

CO2 Reduction

Regeneración of RuBP

37
Q

Requirements for Calvin Cycyle

A

ATP, NADPH , CO2

38
Q

Calvin cycle fixes Carbon to ______

A

RuBP

39
Q

Carbon fixed to RuBP prodcues

A

G3P

40
Q

_____ is used in Co2 fixation and must be replaced

A

RuBP

41
Q

What is produced in the Calvin Cycle

A

G3P

42
Q

What fixes Co2

A

RuBP

43
Q

Photorespiration is

A

When the plant produces Co2

44
Q

How do plants procude Co2

A

Combine O2 with RuBP

45
Q

Type of photosynthesis here in Mi

A

C3

46
Q

C4 plants instead of using RuBP use

A

PEP

47
Q

Where are C4 plants located

A

Hot dry climates

48
Q

CAM photosynthesis Stands for:

A

Crassulacean-acid metabolism

49
Q

CAM partation Carbon Dioxide fixation by _____

A

Time

50
Q

When do CAM plants fix Co2

A

Night

51
Q

CAM plants during the day light

A

Absorb Sunlight & Store ATP & NADPH

52
Q

C4 plants ideal climate

A

Hot Dry

53
Q

CAM plants are best suited to

A

Extreme Aridity

54
Q

Initial Co2 acceptor for C3

A

RuBP

55
Q

C4 initial Co2 acceptor

A

PEP

56
Q

Example of a C3, C4, CAM

A

Sunflower, Sugarcane, Cacti

57
Q

Which things use photosynthesis

A

Plants, algea, some bacteria

58
Q

Difference between NADH & NADPH

A

NADH is used in cellular respiración

NADPH is used in photosynthesis

59
Q

Diagram on 117

A

Test

Biology (27 decks)

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