Chapter 6 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

P/S takes ___________ coverts it to ___________ as sugar

A

Light energy
Potential energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Chemical summary of P/S

A

6CO2 + 12 H2O + light energy = 2(C3H6O3) + 6 H2O + 6O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Two phases of P/S

A

Light dependant- light capture
Light independant- caron fixation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

3 steps of light dependant aka
3 reactions

A

Light is absorbed by pigments
Light energy electrons is transported ETC
Products are made ( ATP NADPH) O2 by product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Groups of light absorbing pigments gathered together is a (cluster of several hundred)

A

Photosystem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Pigment used in P/S

A

Chlorophyll

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Any chemical that can absorb photos of light.

A

Pigment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where do electrons gather to be ejected

A

Reaction Center

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ETC lose energy as they trans port e- and create

A

ATP + NADPH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When is oxygen made

A

At the end of light capture phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the light Independent phase aka

A

Carbon fixation
Calvin cycle
Sugar making

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

In the light Independent phase CO2 is used to build

A

Sugar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How are electrons replenished after they leave photo system

A

They are taken from water. hydrogen protons H+ and O2 are released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is G3P

A

Glyceraldehyde three phosphate
Is the endpoint of P/S.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the three phases of the Calvin Cycle

A

Carbon up take
Reduction
Regeneration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What happens during carbon uptake

A

3CO2 grabbed and added to RUBP (5carbon) from Regeneration phase

17
Q

What happens during Reduction phase

A

Add electrons from ATP and NADPH to make 6 G3P (reduced three carbon sugar) 1 G3P leaves 5 move to regeneration

18
Q

What happens during Regeneration phase

A

1 G3P exits and remaining 5 mix with phosphate from ATP to make RUBP then the cycle repeats

19
Q

In hot conditions plants close their stomata causing CO2 and O2 to stop diffusing and what occurs

A

Photorespiration

20
Q

Photorepiration

A

RuBisCO affixes oxygen and produces CO2 and makes Calvin Cycle less effective. Make glycolate instead of glycerate

21
Q

How do C4 plants deal with photorespiration.

A

They fix 4 carbons in
Oxaloacetate to malate in mesophyll layer making CO2 and pyruvate. CO2 goes into the Calvin Cycle