Lec 2 Flashcards
Where is light energy captured in the plant?
It is captured by chlorophyll pigments in the thylakoid membrane chloroplasts
What is chlorophyll predominantly excited by?
Blue and red wavelengths
What do the energetic electrons that are produced from photothensis do?
They pass through a chain of membrane bound proteins which use the energy released to produce cofactors ATP and NADPH
Where is the proton gradient generally located?
It is found across the membrane and used to generate ATP
What is the process of photosystem II?
What is the ATP and NADPH used for ?
it is used to provide the energy and reducing power to drive the calvin cycle, which inturn fixes the carbon from CO2 and produced 3C sugar
Where does the calvin ccle take place?
It takes place in the stroma of the chloroplast
What are 3C sugar used for?
It is used as buildings blocks for synthesis of carbohydrates, fats oils, proteins and DNA
What are the steps of the Calvin Cycle?
What is the pigments that absorbs light from photosynthesis called?
Chlorophyll mostly and then carotenoids
The photolysis of water is associated with:
Group of answer choices
Photosystem II.
the photosynthetic ATP synthase.
the photosynthetic electron transport chain.
Photosystem I.
plastocyanin.
Photosystem II.
The starting and ending compound in the Calvin cycle is:
Group of answer choices
oxaloacetate.
glyceraldehyde 3-phosphate.
3-phosphoglycerate.
Rubisco.
ribulose 1,5-bisphosphate.
ribulose 1,5-bisphosphate.
The flow of electrons down the photosynthetic electron transport chain is coupled directly to:
Group of answer choices
the reduction of NADP+.
the excitation of electrons from P700.
the excitation of electrons from P680.
the pumping of protons.
photolysis.
The pumping of protons
