F214.3 Photosynthesis Biology Revision Cards

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A Levels Biology (A2 Biology) Flashcards on F214.3 Photosynthesis Biology Revision Cards, created by Laura Perry on 11/05/2016.
Laura Perry
Flashcards by Laura Perry, updated more than 1 year ago
Laura Perry
Created by Laura Perry over 8 years ago
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Resource summary

Question Answer
Autotroph (definition) An organism that can use light or chemical energy and inorganic molecules to synthesise large organic molecules.
Heterotroph (definition) Organisms that ingest and digest complex organic molecules, releasing the chemical potential energy within them
What is a photoautotroph? An organism that can photosynthesise
What is photosynthesis? The process where light energy from the sun is transformed into chemical energy which is used to synthesise large, organic molecules.
How does respiration rely on photosynthesis? It requires the oxygen created in photosynthesis for aerobic respiration. It also requires the large organic molecules formed in photosynthesis to be broken down to release energy.
Where does photosynthesis take place? In specialised organelles found in plants called chloroplasts. The two main stages of photosynthesis take place here
What is the structure of a chloroplast?
How is the inner membrane of the chloroplast adapted to its role? The inner membrane contains transport proteins which control the entry and exit of substances between the cytoplasm and the stroma.
How is the grana of the chloroplast adapted to its role? It provides a surface for photosynthetic pigments and photosystems to maximise absorption of light.
How is the stroma of the chloroplast adapted to its role? It contains the enzymes for the light independent stage. It surrounds the grana so it easy for the products of the light dependent reaction to move o the stroma for the light independent reaction.
Photosynthetic pigment (definition) Molecules that absorb light energy. Each pigment absorbs a different wavelength of light whilst reflecting the others.
What does a photosystem look like?
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