What mechanism is photophosphorylation most similar to?

What mechanism is photophosphorylation most similar to?

glycolysis
In mechanism, photophosphorylation is most similar to 1 substrate-level phosphorylation in glycolysis.

What is photophosphorylation Slideshare?

Photophosphorylation is the process of creating ATP using a Proton gradient created by the Energy gathered from sunlight. The process of creating the Proton gradient resembles that of the electron transport chain of Respiration.

Why is it called photophosphorylation?

This process requires light to be absorbed twice, once in each photosystem, and it makes ATP . In fact, it’s called photophosphorylation because it involves using light energy (photo) to make ATP from ADP (phosphorylation).

Where does photophosphorylation occur?

chloroplasts
Photophosphorylation is the light-dependent reaction, which occurs in the chloroplasts of the plant cells, specifically, in the thylakoid membranes.

Which of these phosphorylates ADP to ATP?

ATP synthase phosphorylates ADP. Which of these phosphorylates ADP to make ATP? The energy released as electrons are passed along the electron transport chain is used to pump protons into the thylakoid compartment.

Which set of reactions uses H2O and produces 02?

The light-dependent reactions of photosynthesis use water and produce oxygen.

What is Photophosphorylation and its types?

Photophosphorylation is the process of utilizing light energy from photosynthesis to convert ADP to ATP. It is the process of synthesizing energy-rich ATP molecules by transferring the phosphate group into ADP molecule in the presence of light. Photophosphorylation is of two types: Cyclic Photophosphorylation.

What happens in PSII?

PSII is the multisubunit chloroplast membrane-associated pigment–protein complex that uses the energy of sunlight to drive the oxidation of water, evolving oxygen, donating electrons into the photosynthetic electron transfer chain, and depositing protons into the thylakoid lumen.

What do you mean by ferredoxin?

Ferredoxins (from Latin ferrum: iron + redox, often abbreviated “fd”) are iron–sulfur proteins that mediate electron transfer in a range of metabolic reactions. These biological “capacitors” can accept or discharge electrons, with the effect of a change in the oxidation state of the iron atoms between +2 and +3.

Is ferredoxin a protein?

Abstract. Under the name ferredoxin (Fd) are comprised ubiquitous, small proteins containing one or two iron–sulfur clusters. These prosthetic groups contain iron and sulfur atoms, organized in three different types of centers: 2Fe–2S, 4Fe–4 S, and 3Fe–4S.

What is the function of phosphorylation?

As part of a hormone, proteins can initiate or suppress major cellular activities, such as secretion. A cell uses phosphorylation as a switch to turn protein activity on or off. Proteins are molecules with an amino acid backbone and, usually, one or more side groups.

What is true regarding phosphorylation?

What is true regarding phosphorylation? It occurs when ATP donates one of its phosphate groups to a molecule of glucose during glycolysis. It strips ATP of all of its phosphate groups It involves combining glucose molecules in order to be used as fuel for glycolysis.

What is the process of phosphorylation?

Definition of phosphorylation : the process of phosphorylating a chemical compound either by reaction with inorganic phosphate or by transfer of phosphate from another organic phosphate especially : the enzymatic conversion of carbohydrates into their phosphoric esters in metabolic processes

How does phosphorylation affect proteins?

Phosphorylation is a chemical reaction that adds a phosphate group consisting of one phosphorous atom and four oxygen atoms to an organic molecule such as a protein. Phosphate has a negative electrical charge. Phosphorylation changes a protein’s conformation.