Photosynthesis Flashcards

0
Q

T or F: leaves have stomatas only on the top of the leaf.

A

False: they only have them on the bottom

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1
Q

__+___+__—-> ___+____

A

Co2+h2o+light—> glucose+o2

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2
Q

___ cells are chloroplast cells

A

Mesophyll

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3
Q

The stacks of thylakoids are called?

A

Granum

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4
Q

The singular discs in the mesophyll cells are called?

A

Thylakoid disks

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5
Q

The outer part of the mesophyll cell? (Like the cytoplasm)

A

Stroma

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6
Q

Chloraphyll collects what?

A

Light energy

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7
Q

A ____ is something that absorbs light

A

Pigment

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8
Q

Light reactions take place where?

A

Thylokoid discs

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9
Q

The products of the light reaction are?

A

Nadph and ATP

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10
Q

_____ is known as the dark reaction? (Doesn’t need light to continue)

A

Calvin cycle

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11
Q

Producers are known as _____

A

Autotrophs

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12
Q

Name examples of autotrophs (4)

A

Plants, some prokaryotes, algae, and other Protists

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13
Q

T or F: water is only needed for the light dependent reaction.

A

True

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14
Q

What process is used to split the water molecule?

A

Hydrolysis

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15
Q

______ is used to make ATP from the hydrogens?

A

Chemiosmosis

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16
Q

What absorbs the light in the light dependent reaction? (Be specific)

A

Chloraphyll A, B, and carotenoids

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17
Q

What colors does chloraphyll A absorb?

A

Red and violet

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18
Q

Chloraphyll B’s 2 main functions are?

A

Capture additional wavelengths and pass on absorbed energy to chloraphyll A

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19
Q

Carotenoids collect what colors? What colors does it reflect?

A

Collects: blue violet blue and green
Reflects: orange and yellow

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20
Q

Function of caratenoids? (2)

A

Funnel energy to chloraphyll A

And also photoprotection

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21
Q

The two main structures in the light dependent reactions are?

A

Ps 1 and 2

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22
Q

What are the photo systems made out of?

A

Pigments. Chloraphyll a and b and caratenoids

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23
Q

Name the 2 photo system’s absorption peak?

A

Ps1: 700
Ps2:680

24
The light dependent reaction is an _____-_____-_____
Electron transfer chain
25
In the noncyclic pathway you create ____ ATP and nadph
Equal
26
In the cyclic pathway what happends?
First electron goes through normally and the electron from water recycles through the photo systems to create more ATP
27
Why is the cyclic pathway needed?
So that more ATP is available for the Calvin cycle
28
T or F the Calvin cycle needs more NADPH than ATP
False: needs more ATP
29
What is Chemiosmosis and how is it prominent in the light dependent reaction?
Build up of hydrogen ions from the splitting of water. The hydrogen build up creates a charge in cell. It eventually pumps out of ATP synthase and creates more ATP
30
Anthrocyanins do what?
Colors found in vacuole that determine outside color of plant
31
Calvin cycle needs what 3 sources to start the process?
Co2, NADPH, and ATP
32
What are the products of the Calvin cycle?
G3P, NAD+, and ADP
33
Three phases of the Calvin cycle are?
Carbon fixation, reduction, and regeneration
34
What happens in carbon fixation?
Co2 enters through the stroma, that is then combined with RUBP
35
What happens in reduction?
Through the transformations from the use of ATP and NADPH. G3P is created.
36
In regeneration what happens?
Regenerate RUBP
37
How many turns of the Calvin cycle is required to create 6 G3Ps?
3
38
How many are used for regeneration? If there are 6 G3Ps present?
5 one gets to leave
39
How many are used for regeneration? If there are 18 G3Ps present?
15 used for regeneration 3 can be used for anything
40
How many G3Ps are needed to create glucose?
2
41
How many turns of the Calvin cycle to create Glucose?
6
42
How many ATPs are needed to create one Glucose? What about NADPH
9 ATPs and 6 NADPHs
43
When it's really hot plants close their____?
Stomatas
44
When O2 binds with rubisco instead of Co2 it is called what?
Photo respiration
45
Where does the Calvin cycle take place?
Stroma
46
Where does photo respiration take place?
Mito condria
47
What are the products of photo respiration?
Nothing
48
What happens in c4 plants that's different than c3 plants
Calvin cycle takes place in a bundle sheath (another cell), Pep carboxylase instead of rubisco, binds co2 with oxaloacetate to creat malate, malate turns to pyruvate
49
What's the differance between pep carboxylase and rubisco?
Carboxylase doesn't bind to O2. It can only bind to Co2 making photo respiration impossible
50
In C4 plants carbon fixation equation | ___+_____________--->______
Co2+oxaloacetate-----> malate
51
Calvin cycle c4 plant equation | ___--->> ______+__---->____ and other leaves
Malate--> pyruvate+co2--> oxaloacetate
52
Oxaloacetate in c4 plants is like _____ in c3 plants?
Rubisco
53
Pyruvate in C4 plants are like _____ in C3 plants
G3p
54
CAM plants create _____ in the day and do ______ at night.
Pyruvate, carbon fixation
55
During the night time Cam plants create what product during carbon fixation?
Malate
56
Malate made at night in Cam Plants are stored where until night is over?
Vacoule
57
Pep carboxylase in cam and c4 plants act as what in c3 plants?
RUBP