Photosynthesis at Aston University | Flashcards & Summaries

Lernmaterialien für photosynthesis an der Aston University

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What happens in the light dependent reaction
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Photons hit chlorophyll and absorbs light energy by photoionisation
The photoexcited electron rise in energy levels meaning the chlorophyll is oxidised
The electrons pass through the electron transport chain releasing energy in redox reactions in the thylakoid membrane
The energy released forms a proton gradient as the proton pump pumps hydrogen ions from the stroma to the thylakoid space
Hydrogen ions diffuse through ATP synthase by photophosphorylation from ADP and Pi
Photolysis of water produces 2 protons, 2 electrons and half oxygen
NADP is reduced by electrons 
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What are 2 uses of ATP 
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-Provides energy. Active transport, protein synthesis 
- Phosphorylation. Lowers the activation energy, alters the tertiary structure, makes the molecules more reactive
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Limiting factors of photosynthesis 
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Temperature, carbon dioxide concentration and light intensity/ wavelength
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How is chlorophyll reduced
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The electrons from photolysis replace those lost by the chlorophyll
The hydrogen ion and electron reduces NADP to make NADPH
The evolved oxygen is released as a useful waste product
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Photophosphorylation 
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ATP production in LDR
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thylakoid 
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Flattened membrane bound sacs found in the chloroplast
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What’s NADP
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Nicotinamide adenine dinucleotide phosphate 
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Granum
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Stack of thylakoids

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Adding a phosphate to ADP is known as?

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Phosphorylation

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what is NADP

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Nicotinamide Adenine Dinucleotide Phosphate (NADP) is called a co-enzyme and when it gets reduced acts as a hydrogen/electron carrier

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What are the products of the light dependent reaction?

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ATP and NADPH (reduced NADP)
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Stroma
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Protein rich matrix surrounding thylakoids containing enzymes, starch grains and ribosomes
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Beispielhafte Karteikarten für deinen photosynthesis Kurs an der Aston University - von Kommilitonen auf StudySmarter erstellt!

Q:
What happens in the light dependent reaction
A:
Photons hit chlorophyll and absorbs light energy by photoionisation
The photoexcited electron rise in energy levels meaning the chlorophyll is oxidised
The electrons pass through the electron transport chain releasing energy in redox reactions in the thylakoid membrane
The energy released forms a proton gradient as the proton pump pumps hydrogen ions from the stroma to the thylakoid space
Hydrogen ions diffuse through ATP synthase by photophosphorylation from ADP and Pi
Photolysis of water produces 2 protons, 2 electrons and half oxygen
NADP is reduced by electrons 
Q:
What are 2 uses of ATP 
A:
-Provides energy. Active transport, protein synthesis 
- Phosphorylation. Lowers the activation energy, alters the tertiary structure, makes the molecules more reactive
Q:
Limiting factors of photosynthesis 
A:
Temperature, carbon dioxide concentration and light intensity/ wavelength
Q:
How is chlorophyll reduced
A:
The electrons from photolysis replace those lost by the chlorophyll
The hydrogen ion and electron reduces NADP to make NADPH
The evolved oxygen is released as a useful waste product
Q:
Photophosphorylation 
A:
ATP production in LDR
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Q:
thylakoid 
A:
Flattened membrane bound sacs found in the chloroplast
Q:
What’s NADP
A:
Nicotinamide adenine dinucleotide phosphate 
Q:
Granum
A:
Stack of thylakoids

Q:

Adding a phosphate to ADP is known as?

A:

Phosphorylation

Q:

what is NADP

A:

Nicotinamide Adenine Dinucleotide Phosphate (NADP) is called a co-enzyme and when it gets reduced acts as a hydrogen/electron carrier

Q:
What are the products of the light dependent reaction?

A:
ATP and NADPH (reduced NADP)
Q:
Stroma
A:
Protein rich matrix surrounding thylakoids containing enzymes, starch grains and ribosomes
photosynthesis

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