Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Cell Metabolism > Electron Transport Chain - Photosynthesis > Flashcards

Electron Transport Chain - Photosynthesis Flashcards

1
Q

Is the electron transport chain part of the light independent or light dependent part of photosynthesis?

A

Light dependent

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

Where is the electron transport chain in the light dependent stage of photosynthesis located?

A

Across the thylakoid membrane

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

What is the name of the first electron carrier in the electron transport chain of photosynthesis?

A

photosystem 2
PSII

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

What is the name of the second electron carrier in the electron transport chain of photosynthesis?

A

Plastiquinone
PQ

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

What is the name of the third electron carrier in the electron transport chain of photosynthesis?

A

Cyt b6f

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

Other than transfer of electrons in the electron tranpsort chain of photosynthesis, what function does Cyt b6f possess?

A

transfer of protons across the thylakoid membrane from the chloroplast stroma to the thylakoid space to create a proton gradient to drive ATP synthesis

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

What is the fourth electron carrier in the elctron transport chain?

A

plastocyanin
PC

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

What electron carrier comes after Plastocyanin in the electron ctransport chain of photosynthesis?

A

photosystem 1
PSI

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

What protein is associated with photosystem 1 in the electron transport chain of photosynthesis?

A

Ferredoxin Fd
(NADP+ reductase)

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

What wavelengths of light are absorbed by Photosystem 1 and 2 in the light dependent stage of photosynthesis?

A

PSII = 680nm
PSI = 700nm

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

In which side of the thylakoid membrane is the high proton gradient needed to drive ATPsynthase?

A

high gradient in the thylakoid space
low gradient in the chloroplast stroma

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

What is the role of Ferredoxin in the light dependent reaction of photosynthesis?

A

Act as an electron acceptor and reduce NADP+ to produce NADPH in the chloroplast stroma (NADP+ reductase) for use in the dark reactions

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

What overall reaction occurs at Photosystem 2 in the light dependent reaction?

A

4hu (photons of light) + 2H2O -> 4H+ +4e- + O2

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

What is the direction of flow of electrons in ATPsynthase of the light dependent reaction of photosynthesis?
Is this the same, or does this differ to the direction of proton flow in mitochondria?

A

flow from the thylakoid space to the chloroplast stroma
opposite flow

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

NADPH and what other small molecule are produced in the light dependent reactions of photosynthesis for use in the dark reactions?

A

ATP (via ATPsynthase)

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

What overall reaction occurs in photosystem 1 of the light dependent reaction of photosynthesis?

A

4e- +2H+ +2NADP+ +4hu (photons of light) -> 2NADPH

17
Q

What is the overall reaction (equation) that occurs in the light dependent stage of photosynthesis?

A

2H2O +2NADP+ +8hu (photons of light)
-> 2H+ + O2 + 2NADPH

Cell Metabolism (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions