What is linear photophosphorylation?
Some electrons flow cyclically The pathway above is sometimes called linear photophosphorylation. That's because electrons travel in a line from water through PSII and PSI to NADPH. (Photophosphorylation = light-driven synthesis of ATP.)
What are the 3 products of linear photophosphorylation?
What are the three products of linear electron flow? Linear Electron Flow produces: NADPH—electron donor used to reduce CO2 to sugar in the Calvin Cycle. ATP—energy source for the Calvin Cycle. O2—released as by-product.
What is the difference between linear and cyclic photophosphorylation?
7:008:55Difference between Cyclic and Non cyclic Photophosphorylation of …YouTubeStart of suggested clipEnd of suggested clipHere the flow is non cyclic or linear electrons moves from PS 2 to ps1 and ultimately reducing nadMoreHere the flow is non cyclic or linear electrons moves from PS 2 to ps1 and ultimately reducing nad p2 NADPH. That's why this is called as non cyclic. Second difference regarding the output.
What are the products of linear photophosphorylation?
21) What are the products of linear photophosphorylation? Source Page 193 – The two photosystems work together in using light energy to generate ATP and NADPH , the two main products of the light reactions. Source Figure 10.14 – How a linear electron flow during the light reactions generates ATP and NADPH.
What is the difference between cyclic photophosphorylation and Noncyclic photophosphorylation?
Difference between cyclic and non-cyclic photophosphorylation: Photosynthesis is the process of converting the light energy into chemical energy….Difference between Cyclic and Non – Cyclic Photophosphorylation.
| Cyclic Photophosphorylation | Non-Cyclic Photophosphorylation |
|---|---|
| Electrons move in a cyclic pattern. | Electrons do not travel in a cyclic pattern. |
•Apr 12, 2022
What is meant by linear flow of electron?
In linear electron flow (unbroken arrows) energy from absorbed photons is used to oxidise water on the luminal face of photosystem II (PS II). Electrons generated by this process pass through a series of electron carriers in PS II and then to the oxidized plastoquinones (PQ) that diffuse within the membrane.
What are two products of linear electron flow?
The products of linear electron flow are ATP and NADPH.
What is difference between oxidative phosphorylation and photophosphorylation?
What is the difference between Photophosphorylation and oxidative phosphorylation? Photophosphorylation occurs in the chloroplast during photosynthesis, whereas oxidative phosphorylation occurs in mitochondria during cellular respiration.
What is the difference between ps1 and ps2?
The key difference between both the photosystems – Photosystem I and photosystem II is that PS I tends to absorb light of longer wavelengths > 680nm, whereas PS II absorbs light of shorter wavelengths <680 nm.
What is the main difference between cyclic and non-cyclic photophosphorylation?
| Cyclic photophosphorylation | Non-cyclic photophosphorylation |
|---|---|
| 1- It occurs in photosystem I. | 1- It occurs in both photosystem I and photosystem II. |
| 2- Only Atp is produced | 2- Both ATP and NADPH are produced. |
| 3- Electrons expelled by photosystem and return back. | 3- Electrons expelled by photosystem but do not return back. |
How does linear electron flow differ from cyclic electron flow?
In linear electron flow (LEF), the PSs function in series and electrons are transferred all the way from water to NADP+ with concomitant production of NADPH and ATP. Cyclic electron flow (CEF), in contrast, recycles electrons around PSI by re-routing them from ferredoxin (Fd) to the plastoquinone (PQ).
What is the difference between cyclic and non-cyclic linear electron pathways?
1 Answer. 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.
What is the difference between linear and cyclic electron flow?
In linear electron flow (LEF), the PSs function in series and electrons are transferred all the way from water to NADP+ with concomitant production of NADPH and ATP. Cyclic electron flow (CEF), in contrast, recycles electrons around PSI by re-routing them from ferredoxin (Fd) to the plastoquinone (PQ).
What are the steps in linear electron flow in photosynthesis?
0:004:36Linear Electron Flow – YouTubeYouTube
What is meant by linear flow of electrons?
Term. linear electron flow. Definition. A route of electron flow during the light reactions of photosynthesis that involves both photosystems (I and II) and produces ATP, NADPH, and O2. The net electron flow is from H2O to NADP+.
Why is it called oxidative phosphorylation?
In the mitochondrion, what the proton gradient does is facilitate the production of ATP from ADP and Pi. This process is known as oxidative phosphorylation, because the phosphorylation of ADP to ATP is dependent on the oxidative reactions occurring in the mitochondria.
What are three main differences between photosystem 1 and photosystem 2?
Pigments. Photosystem 1: PS 1 contains chlorophyll B, chlorophyll A-670, Chlorophyll A-680, chlorophyll A-695, chlorophyll A-700 and carotenoids. Photosystem 2: PS 2 contains chlorophyll B, chlorophyll A-660, chlorophyll A-670, chlorophyll A-680, chlorophyll A-695, chlorophyll A-700, phycobilins and xanthophylls.
Is photosystem 1 cyclic or noncyclic?
Difference between Cyclic and Non-Cyclic Photophosphorylation
| Cyclic Photophosphorylation | Non-Cyclic Photophosphorylation |
|---|---|
| Electrons revert to Photosystem I | Electrons from Photosystem I are accepted by NADP. |
| ATP molecules are produced. | Both NADPH and ATP molecules are produced. |
What is the function of linear electron flow?
In linear electron flow (unbroken arrows) energy from absorbed photons is used to oxidise water on the luminal face of photosystem II (PS II). Electrons generated by this process pass through a series of electron carriers in PS II and then to the oxidized plastoquinones (PQ) that diffuse within the membrane.
What is the main difference between cyclic and noncyclic photophosphorylation?
The two types of photophosphorylation are cyclic and noncyclic phosphorylation. Cyclic photophosphorylation occurs during anoxygenic photosynthesis while noncyclic photophosphorylation occurs in oxygenic photosynthesis.
What happens in linear electron flow?
In linear electron flow (unbroken arrows) energy from absorbed photons is used to oxidise water on the luminal face of photosystem II (PS II). Electrons generated by this process pass through a series of electron carriers in PS II and then to the oxidized plastoquinones (PQ) that diffuse within the membrane.
What is difference between electron transport chain and oxidative phosphorylation?
Oxidative phosphorylation is made up of two closely connected components: the electron transport chain and chemiosmosis. In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient.
What is difference between ps1 and ps2?
The key difference between both the photosystems – Photosystem I and photosystem II is that PS I tends to absorb light of longer wavelengths > 680nm, whereas PS II absorbs light of shorter wavelengths <680 nm.
What is difference between C3 and C4 plants?
C3 plants use the C3 pathway or Calvin cycle for the dark reaction of photosynthesis. C4 plants use the C4 pathway or Hatch-Slack Pathway for the dark reaction of photosynthesis. These plants are cool-season plants, commonly found in cool and wet areas. These plants are warm-season plants, commonly found in dry areas.
Why is it called Z-scheme?
Why is it called Z-Scheme? It is simply because the diagram, when first drawn, was in the form of the letter "Z".
What is the difference between Noncyclic and cyclic?
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 order is the linear electron flow in photosynthesis?
During oxygenic photosynthesis in plants, leaves absorb light energy to drive photosynthetic electron flow in the chloroplasts. In linear electron flow (LEF), electrons from the splitting of water by the oxygen-evolving complex (OEC) are transferred to NADP+, reducing NADP+ to NADPH.
How is oxidative phosphorylation different from Photophosphorylation?
What is the difference between Photophosphorylation and oxidative phosphorylation? Photophosphorylation occurs in the chloroplast during photosynthesis, whereas oxidative phosphorylation occurs in mitochondria during cellular respiration.
What is oxidative phosphorylation also known as?
Oxidative phosphorylation is also known as the electron transport chain. It includes the reactions that result in the synthesis of ATP from ADP + Pi. Heat can also be generated when ATP production is uncoupled from the respiratory chain.
How are photosystem I and II similar and different?
Photosystem I is very receptive to light waves at the 700 nm wavelength. In comparison, photosystem II is very receptive to light wavelengths of around 680 nm. What is this? Both photosystem I and II are necessary in most plants to produce the energy they need from the sun.