Photosynthesis and Cellular Respiration Flashcards

(58 cards)

1
Q

Photosynthesis stores _______

A

Energy of the sun

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2
Q

Photosynthesis involves _____ reaction while respiration involves _____ reaction.

A

Reduction, oxidation

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3
Q

Does photosynthesis recycle energy?

A

No

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4
Q

Self feeding organisms

A

Autotrophs

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5
Q

Two types of autotrophs

A

Photoautotrophs, chemoautotrophs

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6
Q

Cannot make own food

A

Heterotrophs

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7
Q

Cellular energy; energy currency

A

ATP

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8
Q

Process of releasing atp’s energy

A

Phosphorylation

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9
Q

Cells use atp for

A

Active transport, movement, photosynthesis, protein synthesis, cellular respiration

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10
Q

A monosaccharide; C6H12O6; 90 times of atp

A

Glucose

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11
Q

Photosynthesis reactants

A

Water and CO2

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12
Q

Photosynthesis products

A

O2 and water and carbohydrates and starch

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13
Q

He concluded mass came from water

A

Van Helmont

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14
Q

He concluded plants releases O2 for burning (Candle in bell jar with mint)

A

Priestley

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15
Q

He experimented with sunlight and concluded light was necessary for oxygen

A

Ingenhousz

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16
Q

Proposed that plants can convert light into chemical energy

A

Julius Robert Mayer

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17
Q

They used isotopes to determine that oxygen comes from water

A

Samuel Ruben and Martin Kamen

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18
Q

He traced the path that Carbon takes to form glucose that does not require sunlight

A

Melvin Calvin - Calvin cycle; light independent reaction

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19
Q

Studied light independent reactions; first to describe Electron Transport Chain

A

Rudolph Marcus

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20
Q

Photosynthesis equation

A

6CO2 + 6H2O -> C6H12O6 + 6O2

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21
Q

Primary light absorbing pigment in autotrophs

A

Chlorophyll

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22
Q

Light energy unit

A

Photon

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23
Q

Light contains a mixture of wavelengths with diff colors. Yes or no?

A

Yes

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24
Q

Photons _____ electrons that then carries absorbed energy and moves to higher energy levels

25
When a pigment absorbs light
It goes from ground state to excited/unstable state
26
Two types of chlorophyll
Chlorophyll a and b
27
Third type of chlorophyll is found where?
Dinoflagellates
28
Reaction that occurs in thylakoid membrane; uses light; produces oxygen; adp to atp; nadp to nadph
Light dependent reaction
29
Discivered first; almost completely chlorophyll a
Photosystem I
30
Pathway 1; uses photosystem I, only atp
Cyclic electron flow
31
Pathway 2; involves photosystem I and II; results in ATP and NADPH which will enter to Calvin cycle; water is hydrolyzed; O2 is formed and released
Noncyclic electron flow
32
Light independent reaction
Calvin cycle
33
Calvin cycle stages
Carbon fixation (CO2+RUBP), reduction (G3P), regeneration (RUBP)
34
Enzyme
RuBISCO
35
Factors affecting the rate of photosynthesis
Amt of water, temperature, amt of light
36
Alternative mechanism of carbon fixation during hot climates; plants close their stomata causin oxygen to build up
Photorespiration
37
During photorespiration, it is used instead of CO2; it lessens photosynthetic rate
Oxygen
38
They minimize cost of photorespiration by incorporating CO2 in four carbon compounds in mesophyll
C4 plants
39
Four carbon compunds in c4 plants are exported to ______ where they release CO2 in calvin cycle
Bundle sheath cells
40
C4 pathway
CO2- PEP- OAA- Malate- Deliver CO2 to Calvin
41
C4 leaf anatomy
Photosynthetic cells (mesophl and bundle sheath), vein, stoma
42
Opens their stomata at night; CO2 incorporates organic acids; closed stoma at day; CO2 is released for calvin cycle
CAM (crassulacean acid metabolism) plants
43
Example of C4 and CAM respectively
Sugarcane and pineapple
44
Plants and animals use products of photosynthesis for
Metabolic fuel
45
Reaction of cellular resp
C6H12O6 + O2 -> 6CO2 + 6H2O
46
It is when chemical bond energy in sugars is converted to ATP for metabolic reactions
Cellular respiration
47
Breakdown of glucose begins here
Cytoplasm
48
Two forms and pathways of cellular resp
Anaerobic and aerobic
49
1st reaction/step in cellular resp; break 6 carbon glucose into pyruvate; yields 2 atp and 2 nadh
Glycolysis
50
Type of cell resp that requires oxygen
Aerobic
51
Set of reactions under aerobic
Krebs and electron transport chain
52
Aerobic respiration occurs in
Mitochondria
53
Completes breakdown of glucose by breaking pyruvate to end up in CO2 an H2O; produces NAH and FADH2; 2 more ATP
Krebs
54
Like a staircase; form 32 atp; oxygen at bottom of staircase picks up electrons and becomes water
Electron transport chain
55
Total atp in aerobic resp
2+2+32=36
56
Type of cellular resp without or little oxygen
Anaerobic
57
Total atp in anaerobic
2
58
End products of anaerobic resp
Ethanol, lactic acid (muscle), CO2 (yeast, beer, bread)