What molecule is produced by both cyclic and non-cyclic electron flow?

What molecule is produced by both cyclic and non-cyclic electron flow?

ATP
ATP is produced through chemiosmosis in both cyclic and non-cyclic photophosphorylation.

What is common in both cyclic and non-cyclic photophosphorylation?

Ø Both cyclic and noncyclic photophosphorylations are light reactions. Ø Both are dependent on light. Ø Both are electron transport systems. Ø Both pathways produce assimilatory powers.

What is cyclic and noncyclic electron flow?

In photosynthesis: The pathway of electrons. …and intermediate carriers is called noncyclic electron flow. Alternatively, electrons may be transferred only by light reaction I, in which case they are recycled from ferredoxin back to the intermediate carriers. This process is called cyclic electron flow.

What two molecules are non-cyclic electron flows?

In non-cyclic photophosphorylation both NADPH and ATP are produced while in the cyclic one only ATP is produced. When the plant has enough reducing agent (NADPH), there is no need for the production of more NADPH that involve both photosystems (I and II).

Which molecule is only produced in cyclic electron flow?

In another form of the light reactions, called cyclic photophosphorylation, electrons follow a different, circular path and only ATP (no NADPH) is produced.

How does cyclic electron flow differ from non-cyclic electron flow?

Cyclic photo-phosphorylation in photosynthesis light dependent reaction leads to the formation of ATP and NADPH, and the electrons go from water to PSII to PSI and eventually to NADPH. In non-cyclic photo-phosphorylation only some ATP is produced and the electrons go from PSII to PSI and back again.

Which of these systems is used to pump hydrogen ions across the thylakoid membrane?

electron transport system
From photosystem II, the excited electron travels along a series of proteins. This electron transport system uses the energy from the electron to pump hydrogen ions into the interior of the thylakoid.

How cyclic and non-cyclic electron flow are different?

So in non-cyclic photophosphorylation, you make oxygen, from splitting the water molecule, you make ATP using the H+ ions and you make NADPH. In cyclic photophosphorylation, you only use photosystem I. There is no splitting of water – the electrons only come from the light harvesting complex.

What does non-cyclic electron flow produce?

In a process called non-cyclic photophosphorylation (the “standard” form of the light-dependent reactions), electrons are removed from water and passed through PSII and PSI before ending up in NADPH. This process requires light to be absorbed twice, once in each photosystem, and it makes ATP .

How is non cyclic electron flow used in a cell?

A good way to think of non-cyclic electron flow is a dam that still creates electrical energy, but also uses water to make chemical energy. Non-cyclic electron flow creates not one but two forms of usable energy for the cell. One molecule of NADPH holds about three times the about of energy of a molecule of ATP.

Where does non cyclic photophosphorylation of water take place?

Being a light reaction, non-cyclic photophosphorylation happens in the thylakoid membrane. Where first, a water molecule is broken down into 2H+ + ½ O2 + 2e− by a procedure called photolysis (light-splitting). Then the two electrons from the water molecule are preserved in photosystem II, while the 2H+ and ½ O2 are released out for other use.

How is NADP + involved in non cyclic photophosphorylation?

On the other hand, non-cyclic photophosphorylation, NADP+ does not take the electrons; they instead sent back to cytochrome b6f complex. In bacterial photosynthesis, a single photosystem is needed and therefore is involved in cyclic photophosphorylation.

How is the electron recycled in cyclic photophosphorylation?

Cyclic photophosphorylation is a procedure where the electron is recycled. One of the constituents in the thylakoid membrane is a photosystem, which is packed with chlorophyll. The chlorophyll absorbs the light energy and uses it to stimulate the electron.