Lecture 7 - Photosynthesis Flashcards
What is the equation for photosynthesis?
Carbon dioxide + Water –> Sugar + Oxygen
Where does photosynthesis occur?
Chloroplasts
What is the basic structure of chloroplasts?
- Outer/inner membrane
- Stroma
- Thylakoid
- Thylakoid space
- Inter-membrane space
- Ribosomes
- DNA
Where do light reactions take place?
Thylakoid memrane
Where does carbon fixation occur?
Stroma
What is the role of Chlorophyll?
To capture light energy and
convert it to chemical energy (high energy electrons)
What results in a movement of high energy electrons in photosynthesis?
Light energy being absorbed in chlorophyll
What is the order of systems in the Photosynthetic Electron Transport Chain? (4)
Photosystems 2, Cytochrome complex, Photosystem 1, ATP synthase
In photosystem 1 what happens with water?
Water (H2O) splits and O2 and H+ are produced
In light reactions, alongside H+ and O2, what else is produced ?
ATP and NADPH
Oxygen is produced in photosynthesis by the splitting of:
(A) carbon dioxide molecules in photosystem II.
(B) water molecules in photosystem II.
(C) water molecules in photosystem I.
(D) carbon dioxide molecules in photosystem I.
(B) water molecules in photosystem II.
What are the three main phases of the calvin cycle?
Fixation, reduction and regeneration
What are the inputs and outputs of photosynthesis?
Inputs: Light, Water, CO2
Outputs: Glucose, Oxygen
Where has almost all glucose on earth indirectly or directly come from?
Photosynthesis
Why and how do plants and animals breakdown glucose?
In cellular respiration to generate ATP
