Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

BIO 111 > Chapter 7: Photosynthesis > Flashcards

Chapter 7: Photosynthesis Flashcards

1
Q

Photosynthesis

A

Process converting light energy into chemical energy

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

Overall eqaution for Photosynthesis

A

6CO2 + 6H2O —— C6H12O6 + 6O2

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

Oxygenic photosynthesis

A

Photosynthesis producing oxygen, done by plants, algae, and cyanobacteria

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

Anoxygenic photosynthesis

A

Photosynthesis not producing oxygen, performed by certain bacteria

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

Chloroplast

A

Organelles where photosynthesis occurs in plan cells

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

Thylakoid membrane

A

Membrane containing chlorophyll, site of light reactions

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

Grana

A

Stacks of thylakoid membranes in chloroplasts

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

Stroma

A

Fluid surrounding thylakoids in chloroplasts

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

Lumen

A

Space inside thylakoid membranes

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

Light-dependent reactions

A

Reactions requiring light to produce ATP and NADPH

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

Carbon fixation reactions

A

Light-independent reactions using ATP and NADPH to synthesize organic molecules

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

Jan Baptista van Helmont

A

Showed plant mass increases not just from soil

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

Joseph Priestly

A

Discovered plants add oxygen to the air

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

Jan Ingenhousz

A

Proposed plants use sunlight to split CO2

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

F.F. Blackman

A

Concluded photosynthesis is a multistage process

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

C.B. van Niel

A

Studied purple sulfur bacteria’s non-oxygen photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Robin Hill

A

Demonstrated light energy can drive reduction reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Photon

A

Particle of light acting as energy bundle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Absorption spectrum

A

Range of light wavelengths absorbed by a molecule

20
Q

Chlorophyll a

A

Main pigment absorbing violet-blue and red light, only pig. that can directly convert light energy to chemical

21
Q

Chlorophyll b

A

Accessory pigment absorbing different light wavelengths (that a does not)

22
Q

Porphyrin ring

A

Complex structure in chlorophyll with alternating bonds

23
Q

Magnesium ion

A

Central atom in chlorophyll’s porphyrin ring

24
Q

Action spectrum

A

Effectivness of light wavelengths in promoting photosynthesis

25
Q

Carotenoids

A

Pigments with antioxidant properties, absorbing various photon energies

26
Q

Antenna complex

A

Hundreds of accessory pigment, Gathering pigments transferring energy to reaction center

27
Q

Reaction center

A

Contains chlorophyll, passing excited electrons out

28
Q

Chemiosmosis

A

Process using electrochemical gradients to synthesize ATP

29
Q

Calvin Cycle

A

Pathway using ATP and NADPH to fix carbon

30
Q

Rubisco

A

Enzyme catalyzing CO2 fixation in Calvin Cycle

31
Q

C3 Plants

A

Plants using only Calvin Cycle for carbon fixation

32
Q

C4 Plants

A

Plants using C4 pathway for efficient carbon fixation

33
Q

CAM Plants

A

Plants fixing CO2 at night to reduce water loss

34
Q

Photoelectric effect

A

Removal of an electron from a molecule by light

35
Q

When photon strikes a molecule energy is either…

A

Lost as heat, or absorbed by electrons of the molecule

37
Q

Cyclic phtophosphorylation

A
  • Sulfur bacteria, only one photosystem used
  • Generate ATP via electron transport
  • Etc (look at slides)
38
Q

Photosystem I

A

P700, functions like sulfur bacteria

39
Q

Photosystem II

A

P680, functions like non-sulfur bacteria. Generates oxidation potential high enough to oxidze water

40
Q

Photosystems working together

A

Carry out a noncyclic transfer of electrons used to gen. ATP and NADPH

41
Q

Noncyclic photophosphorylation

A

Plants used photosystems II and I to produce ATP and NADPH (look at slides)

42
Q

Chemiosmosis - chloroplasts

A

Has ATP synthase enzymes in thyl. membrane

43
Q

Carbon fixation- Calvin Cycle

A

Build carb cells-
- Energy (ATP from light-dependent, cyclic + noncyclic photo., drives enedergonic)
- Reduction potential (NADPH from photosystem I, source of protons and energetic electrons)

44
Q

Phases of Calvin Cycle

A
  1. Carbon fixation
  2. Reduction
  3. Regenration of RUBP
    (see slide 45)
45
Q

Output Calvin Cycle

A

G3P- 3 carbon sugar
(see slide 47)

46
Q

Rubisco enzymatic activities

A
  • Carboxylation
  • Photorespiration
    (see slide 54)

BIO 111 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions