In what order do the electrons move through the electron transport chain?
The electrons must travel through special proteins stuck in the thylakoid membrane. They go through the first special protein (the photosystem II protein) and down the electron transport chain. Then they pass through a second special protein (photosystem I protein).
Where do the electrons from photosystem I ultimately go after they are passed through the electron transport proteins?
Where do the electrons from photosystem I ultimately go after they are passed through the electron transport proteins? They are pumped out of the cell.
Which of the following is the correct sequence for the movement of electrons during the light dependent reactions of plants?
Which of the following is the correct sequence for the movement of electrons during the light-dependent reactions of plants? Explanation: The sequence for the movement of electrons firstly includes water, secondly P680 then P700 and finally NADP+. 4.
What transports electrons from the light reactions to the Calvin cycle?
What transports electrons from the light reactions to the Calvin cycle? NADPH is an electron carrier that picks up electrons in the light reactions and releases them in the Calvin cycle. The Calvin cycle is a complex series of chemical reactions carried out in the stroma.
What is the function of the electron transport chain of photosystem II of photosystem I?
The electron transport chain helps to move electrons from PS 2 to PS 1. It makes oxidation-reduction reactions within the photosystems. It also uses energy to bring in hydrogren molecules to make a concentration gradient in the thylakoid compartment, which eventually creates ATP due to ATP synthase.
Where do photosystem II electrons come from?
The light excites an electron from the chlorophyll a pair, which passes to the primary electron acceptor. The excited electron must then be replaced. In (a) photosystem II, the electron comes from the splitting of water, which releases oxygen as a waste product.
Where do electrons get their energy in photosystem I?
F. Photosystem I. Photosystem I receives electrons from plastocyanin or cytochrome c6 on the lumenal side of the thylakoid membrane and uses light energy to transfer them across the membrane to ferredoxin on the stromal side. It can also function in a cyclic electron transport pathway.
Which is the correct sequence of electron flow?
(a) The correct sequence of flow of electrons in the light reaction is PSII, plastoquinone, cytochromes, PSI and ferredoxin.
What is the correct sequence for the flow of electrons during photosynthesis?
NADPH → chlorophyll → Calvin cycle.
What happens in photosystem I?
The light reaction of photosynthesis. The light reaction occurs in two photosystems (units of chlorophyll molecules). High-energy electrons, which are released as photosystem I absorbs light energy, are used to drive the synthesis of nicotine adenine dinucleotide phosphate (NADPH). …
What happens between photosystem II and photosystem I?
Photosystem II occurs before photosystem I but it was discovered after photosystem I. In photosystem II, energy is absorbed by electrons, creating high-energy electrons which are passed on to the electron transport chain but in photosystem I the electrons are picked up by NADP to form NADPH.