(AQA A2) Biology - Energy Transfer: Photosynthesis

Description

This flashcard set encompasses the new specification of AQA Biology; first started teaching in 2015.
Clevanisty Clandisity
Flashcards by Clevanisty Clandisity, updated more than 1 year ago
Clevanisty Clandisity
Created by Clevanisty Clandisity almost 8 years ago
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Resource summary

Question Answer
Name the following structure highlighted red in the picture. Thylakoid
Name the following structure highlighted red in the picture. Grana
What is the fluid that is within the chloroplast? Stroma
What is the name of the linkage that links one of the highlight structures to another? Lamella
Oxidation is... ... the loss of electrons.
Reduction is... ... the gain of electrons.
Chlorophyll absorbs light energy... ... electrons move to a higher energy level.
Photoionisation is... Process by which a chlorophyll molecule becomes positively charged as a result of losing two electrons when absorbing light.
When electrons leave the chlorophyll molecule they are taken up by what? Electron Carriers.
What are electrons transfered along? Electron Transfer Chain.
Why are electrons transferred? Because at each stage of the transfer chain they lose energy (for ATP).
Photolysis is... ... breakdown of water to release protons, electrons, and oxygen.
What do the protons gained from the light dependent reaction do? Together with electrons, produced reduced NADP
What is an alternative name for the Light Independent Reaction? Calvin Cycle
In the Light Independent Reaction, what does CO2 react with? RuBP (Ribulose Bisphosphate)
In the Light Independent Reaction, what molecule does CO2 and another molecule, produce? 2x GP (Glycerate 3-Phosphate)
In the Light Independent Reaction, what enzyme catalyses the Carbon Dioxide reaction? Rubisco (Ribulose Bisphosphate Carboxylase)
In the Light Independent Reaction, what is GP reduced to? Triose Phosphate
When GP is being Reduced, what two substances is also required? Reduced NADP and ATP.
What it SOME Triose Phosphate Converted into? Useful Organic Substances.
What is MOST Triose Phosphate Converted into? Glucose.
What is SOME Triose Phosphate USED for? Regeneration of more RuBP
How can the Light Independent Reaction be investigated? Radioactively Labelled Carbon Dioxide.
What Environmental Factors can affect the rate of Photosynthesis. (4 factors.) > Light Intensity. >Carbon Dioxide Concentration. >Temperature. >Availability of water in the soil.
What is the name of the thing that limits the rate of photosynthesis? Limiting Factor.
Where does the Light Dependent Reaction Occur? Thylakoid Membrane.
Where does the Light Independent Reaction Occur? Stroma
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