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☀️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
Adenosine diphosphate is a
Low every molecule
25
When is adenosine triphosphate formed
If energy is added to the adp in the form of another unstable phosphate
26
What is the molecule that supplies energy for most cell reactions
ATP
27
What breaks down millions of atp molecules every second
Active cells
28
What forms NADPH
NADP+ with two high energy electrons and a single proton
29
What is photosynthesis
Process which light from sun is combined with carbon dioxide gas and water to form glucose and oxygen
30
What does photosynthesis depend on
Chlorophyll
31
Where is chlorophyll located and take place
Chloroplasts
32
Where does carbon dioxide come from
Diffuses into plants from air through stomata (on the under leaf) Produced within plant by respiration
33
Crop growth in greenhouses
Artificial light | Adding co2 eg burning gas
34
Where does the light and dark stage take place
Chloroplast
35
Name the stages photosynthesis occurs in
Light stage | Dark stage
36
What does the dark stage require to take place
The light stage first
37
What colour of light is not absorbed
Green
38
Where are light pigments located
The chloroplast
39
What do electron acceptors lads along
Pathway 1 or pathway 2
40
Three main end products of the light stage
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
What does the dark stage need
The NADPH and ATP made in the light stage
42
There is no enzymes in the..
Light stage
43
What are dark stage reactions controlled by
Enzymes
44
What is the rate of the dark stage controlled by
Temperature
45
Where does the dark stage take place
The chloroplast
46
In the dark stage, hydrogen ions released form NADPH combine with co2 to form...
Glucose
47
The addition to Hydrogen to molecules in the dark stage is called
Reduction
48
What are the 4 end products of the dark stage
Glucose ADP phosphate NADP+
49
Glucose supplies energy in
Respiration
50
Glucose converts starch for
Storage
51
In pathway one what is formed
ATP
52
What happens in pathway two
Water is split and 02, ATP and NADPH are made
53
NADP meaning
Nicotinomide adenine dinucleotide phosphate
54
What pathway is ADP converted to ATP
Pathway 2
55
Where are hydrogen ions released from in the dark stage
NADPH
56
How is glucose formed in the dark stage
When hydrogen ions formed from NADPH combine with co2
57
What is the addition of hydrogen to a molecule called
Réduction

Biology (29 decks)

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