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Biology > ☀️photosybthesis > Flashcards

☀️photosybthesis Flashcards

1
Q

Balanced equation for photosynthesis

A

6CO2+ 6H2O + light -> C6H 12O6 + 6O2

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2
Q

Role of photosynthesis

A

Make food for plants
It produces oxygen
Removed carbon dioxide from air

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3
Q

Photosynthesis required

A

Carbon dioxide
Water
Light energy
Chlorophyll

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4
Q

Photosynthesis produces

A

Glucose

Waste oxygen

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5
Q

Photosynthesis converts..

A

Light energy to chemical energy

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6
Q

What are the stages in photosynthesis

A 
Light is absorbed
Light is split
Products are produced 
Light energises electrons 
Glucose is formed
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7
Q

Light that reaches the plant is trapped by

A

Chlorophyll

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8
Q

Chlorophyll is formed in

A

The chloroplast of plant cells

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9
Q

Photosynthesis occurs in the

A

Chloroplast

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10
Q

Water is split through a process called

A

Hydroloysis

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11
Q

What is light energy used for

A

To split water into oxygen has, protons and electrons

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12
Q

Electrons are passed to

A

The chlorophyll

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13
Q

Protons are stored in

A

The proton pool

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14
Q

ADP

A

Enderosine diphosphate

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15
Q

ATP

A

Endocrine triphasphate

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16
Q

When do electrons become energized and trapped with light energy

A

When they are passed to the chlorophyll

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17
Q

What form glucose

A

Protons combined with carbon dioxide

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18
Q

What does artificial light do in a greenhouse

A

Stimulates growth

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19
Q

When does photosynthesis level off

A

When the nomore light can be absorbed it becomes saturated and levels off

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20
Q

Artificial sources of carbon d

A

Burning gas in a green house

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21
Q

Two stages if photosynthesis

A

Light and dark stage

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22
Q

ATP is a

A

Energy rich molecules

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22
Q

What does NADPH carry in photosynthesis

A

Electrons and hydrogen

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23
Q

What does NADH carry electrons and hydrogen in

A

Respiration

24
Q

Adenosine diphosphate is a

A

Low every molecule

25
Q

When is adenosine triphosphate formed

A

If energy is added to the adp in the form of another unstable phosphate

26
Q

What is the molecule that supplies energy for most cell reactions

A

ATP

27
Q

What breaks down millions of atp molecules every second

A

Active cells

28
Q

What forms NADPH

A

NADP+ with two high energy electrons and a single proton

29
Q

What is photosynthesis

A

Process which light from sun is combined with carbon dioxide gas and water to form glucose and oxygen

30
Q

What does photosynthesis depend on

A

Chlorophyll

31
Q

Where is chlorophyll located and take place

A

Chloroplasts

32
Q

Where does carbon dioxide come from

A

Diffuses into plants from air through stomata (on the under leaf)
Produced within plant by respiration

33
Q

Crop growth in greenhouses

A

Artificial light

Adding co2 eg burning gas

34
Q

Where does the light and dark stage take place

A

Chloroplast

35
Q

Name the stages photosynthesis occurs in

A

Light stage

Dark stage

36
Q

What does the dark stage require to take place

A

The light stage first

37
Q

What colour of light is not absorbed

A

Green

38
Q

Where are light pigments located

A

The chloroplast

39
Q

What do electron acceptors lads along

A

Pathway 1 or pathway 2

40
Q

Three main end products of the light stage

A
  1. ) ATP is made in both pathways 1 and 2 - provide energy for dark stage
  2. ) NADPH is made in pathway 2
  3. ) oxygen is released when water is split in pathway 2
41
Q

What does the dark stage need

A

The NADPH and ATP made in the light stage

42
Q

There is no enzymes in the..

A

Light stage

43
Q

What are dark stage reactions controlled by

A

Enzymes

44
Q

What is the rate of the dark stage controlled by

A

Temperature

45
Q

Where does the dark stage take place

A

The chloroplast

46
Q

In the dark stage, hydrogen ions released form NADPH combine with co2 to form…

A

Glucose

47
Q

The addition to Hydrogen to molecules in the dark stage is called

A

Reduction

48
Q

What are the 4 end products of the dark stage

A

Glucose
ADP
phosphate
NADP+

49
Q

Glucose supplies energy in

A

Respiration

50
Q

Glucose converts starch for

A

Storage

51
Q

In pathway one what is formed

A

ATP

52
Q

What happens in pathway two

A

Water is split and 02, ATP and NADPH are made

53
Q

NADP meaning

A

Nicotinomide adenine dinucleotide phosphate

54
Q

What pathway is ADP converted to ATP

A

Pathway 2

55
Q

Where are hydrogen ions released from in the dark stage

A

NADPH

56
Q

How is glucose formed in the dark stage

A

When hydrogen ions formed from NADPH combine with co2

57
Q

What is the addition of hydrogen to a molecule called

A

Réduction

Biology (29 decks)

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