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NatSci 131 > Photosynthesis and Cellular Respiration > Flashcards

Photosynthesis and Cellular Respiration Flashcards

1
Q

the process through which plants make foods

A

Photosynthesis

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2
Q

is the process wherein cells break down food to release the stored energy and use it to make ATP.

A

Cellular Respiration

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3
Q

substances that takes part in a reaction and undergoes a change during the reaction

A

reactants

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4
Q

substances that are formed after a reaction

A

products

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5
Q

The light dependent reaction takes place in the

A

thylakoid

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6
Q

the light independent reaction takes place in the

A

stroma

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7
Q

both ____ are parts of the chloroplastids

A

thylakoid and stroma

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8
Q

Glycolysis takes place in the

A

cytoplasm

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9
Q

what happen in the mitochondrion

A

Krebs Cycle and the Electron Transport Chain and Oxidative Phosphorylation

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10
Q

Krebs Cycle and the Electron Transport Chain and Oxidative Phosphorylation happens in the

A

mitochondrion; in the mitochondrial matrix and the inner mitochondrial membrane

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11
Q

light dependent reaction takes place in the

A

thylakoid of plastids

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12
Q

light dependent reaction uses

A

light energy

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13
Q

Light dependent reaction important events

A

photolysis of water, ATP formation, reduction of NADP

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14
Q

reactants of light dependent reaction

A

water

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15
Q

product of light dependent reaction

A

oxygen , ATP and NADPH (energy-carrier molecules)

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16
Q

Light independent reaction takes place in the

A

stroma of plastids

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17
Q

light independent reaction does not use

A

does not use light energy but uses the ATP and NADPH2 produce from the Light Dependent reaction

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18
Q

light independent reaction important events

A

carbon fixation, reduction and RuBP regeneration

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19
Q

reactant of light independent reaction

A

carbon dioxde?, ATP and NADPH2

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20
Q

product of light independent reaction

A

glucose, RuBP

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21
Q

is comprised of a light harvesting complex and a chlorophyll reaction center

A

Photosystem II (P680)

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22
Q

Light energy also splits water into Hydrogen and Oxygen in a process known as

A

photolysis

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23
Q

reactants of photosynthesis

A

water and carbon dioxide

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24
Q

products of photosynthesis

A

oxygen and glucose

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25
Q

reactants of cellular respiration

A

oxygen and glucose

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26
Q

products of cellular respiration

A

water and carbon dioxide

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27
Q

Light absorption in PSI. PS I absorbs light energy which passes the enrgized electrons to ferredoxin. This results in the

A

formation of an NADPH molecule

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28
Q

RuBP react with ____ to produce a ____ which splits to produce ____

A

CO2,, 6-carbon unstable compound,, 2 molecules of phosphoglycerate

29
Q

______ are used to convert the six molecules of 3-PGA into six molecules of a chemical called _____

A

Reduction of 3-PGA, ATP and NADPH,,, glyceraldehyde 3-phosphate

30
Q

Reduction of 3-PGA. ATP and NADPH (from Light Dependent Reaction) are used to

A

convert the 6 molecules of 3-PGA into 6 molecules of a chemical

31
Q

Phase 1

A

fixation of carbon dioxide

32
Q

phase 2

A

reduction of 3 phosphoglycerate to G3P

33
Q

phase 3

A

regeneration of RuBP from G3P

34
Q

Regeneration of RuBP. Only ____ leaves the Calvin Cycle and is sent to the cytoplasm to contribute to the formation of other compounds needed by the plant while the remaining five G3P molecules remain in the cycle and are used to regenerate RuBP, which enables the system to prepare for more CO2 to be fixed.

A

1 of the G3P molecule

35
Q

Glycolysis takes place in the

A

cytoplasm

36
Q

takes place in the cytoplasm

A

glycolysis

37
Q

reactants of glycolysis

A

glucose

38
Q

products of glycolysis

A

pyruvate, ATP, NADH

39
Q

reactants of Krebs Cycle

A

pyruvate, ATP, NADH

40
Q

products of krebs cycle

A

carbon dioxide, NADH, ATP, FADH2

41
Q

reactants of Electron Transport Chain and Oxidative Phosphorylation

A

oxygen, NADH, FADH2

42
Q

products of Electron Transport Chain and Oxidative Phosphorylation

A

water, ATP

43
Q

is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid (also called pyruvate).

A

glycolysis

44
Q

are used up at the start of glycolysis, for a net gain of two ATP molecules. NADH molecules are also produced.

A

4 ATP molecule are synthesized and 2 ATP molecules

45
Q

takes place in the mitochondrial matrix.

A

pyruvate oxidation

46
Q

Acetyl CoA acts as

A

fuel for the citric acid cycle

47
Q

the starting four-carbon compound, is regenerated by oxidation of malate. Another molecule of NAD+ is reduced to NADH in the process.

A

oxaloacetate

48
Q

plants make what food?

A

glucose

49
Q

plants make food from what?

A

water, carbon dioxide

50
Q

photosynthesis
where is this food made?

A

chloroplast

51
Q

cells break down what food?

A

glucose

52
Q

where is food broken down?

A

mitochondrion

53
Q

what is ATP?

A

Adenorine Tripharphate, the source of energy for use and storage at the cellular level

54
Q

why make ATP?

A

ATP provides energy needed for many
essential processes in organisms and cells

55
Q

krebs cycle happens in

A

mitochondrial matrix

56
Q

electron transport chain and oxidative phosphorylation happens in

A

inner mitochontrial membrane

57
Q

is comprised of a light harvesting complex and a chlorophyll reaction center.

A

Photosystem II (P680)

58
Q

Photosystem II

A

-Plastoquinone
-Cytochrome
-plastocyanin

59
Q

Photosystem I (P700)

A

-ferredoxin
-ATP synthase

60
Q

combines with oxaloacetate (4 carbons) to form citrate (6 carbons). This reaction is catalyzed by citrate synthase

A

Acetyl CoA

61
Q

is converted into its isomer, isocitrate

A

citrate

62
Q

is converted to a ketoglutarate (5 carbons) by isocitrate dehydrogenase. This step involves the removal of a carbon dioxide molecule and generates one NADH

A

isocitrate

63
Q

is converted to succinyl- CoA (4 carbons) big
a- Ketoglutarate dehydrogenase. This step also involver the remoral of a carbon dioxide ideaule and generater: one MaDH

A

a-ketoglutarate

64
Q

is converted to succinate by succinyl-CoA synthetase. This step generates one molecule of GTP (which can be converted to ATP)

A

Succinyl-CoA

65
Q

is converted to fumarate by succinate
dehydrogenase, and one FADH2 is generated.

A

Succinate

66
Q

is converted to malate by fumarase
which adds a water molecule accross the double bond.

A

Fumarate

67
Q

is converted to oxaloacetate by malate dehydro-genase, generating one NapH in the process.

A

Malate

68
Q

At the and of one cycle one acetyl-CoA has been completely iodized yielding 3 NADH, 1 FADH2 , and 1 ATP. the ______
“ is regenerated and can combine with
another acetul- cot to start the cycke again.

A

oxaloacetate

69
Q

9 steps of Krebs Cycle

A
  1. Acetyl CoA
  2. Citrate
  3. Isocitrate
  4. a-Ketoglutarate
  5. Succinyl-CoA
  6. Succinate
  7. Fumarate
  8. Malate
  9. Oxaloacetate

NatSci 131 (13 decks)

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