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What are the electron carriers?

What are the electron carriers?

Electron carriers, also called electron shuttles, are small organic molecules that play key roles in cellular respiration. Their name is a good description of their job: they pick up electrons from one molecule and drop them off with another.

What are the three electron carriers in photosynthesis?

In addition to the complexes, three mobile carriers are also involved: Plastoquinone Qb, Plastocyanin, and Ferredoxin. Other key components include: photons, chlorophyll molecules, protons, water, molecular oxygen, NADP+ and the electrons to form NADPH, and ADP and Pi, which combine to form ATP.

What are the electron carriers in photosynthesis quizlet?

NAD+, FAD, NADP+ (empty electron carriers) and ADP. What are the two sets of reactions for photosynthesis called?

What are the two electron energy carriers in photosynthesis?

In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH. The energy that these molecules carry is stored in a bond that holds a single atom to the molecule.

What are three electron carriers?

The electron carriers include flavins, iron–sulfur centers, heme groups, and copper to divide the redox change from reduced nicotinamide adenine dinucleotide (NADH) at −320 mV to oxygen at +800 mV into steps that allow conversion and conservation of the energy released in three major complexes (Complexes I, III, and IV …

Is NADP+ an electron carrier?

NADP+ is an electron carrier that can reduce other molecules in biosynthetic reactions. In biological systems, the more reduced a molecule, the more potential it has to yield energy when it’s broken down. NADP+/NADPH’s role in the cell is to donate those electrons so that the cell can make things.

What is the high energy electron carrier in photosynthesis?

NADP+ (nicotinamide adenine dinucleotide phosphate) – carrier molecule that transfers high-energy electrons from chlorophyll to other molecules.

What is the function of the carrier molecule in photosynthesis quizlet?

Electron carrier molecule is a compound that can accept a pair of high-energy electrons and transfer them, along with most of their energy, to another molecule. Photosynthesis uses the energy of sunlight to convert water and carbon dioxide (reactants) into high-energy sugars and oxygen (products).

What is produced in cyclic electron flow?

Under certain conditions, the photoexcited electrons take an alternative path called cyclic electron flow, which uses photosystem I (P700) but not photosystem II (P680). This process produces no NADPH and no O2, but it does make ATP. This is called cyclic photophosphorylation.

How do photons excite electrons?

Photons are electromagnetic waves that propagate in wave packet. Those wave packet carry a defined quantized amount of energy. When a photon interact with an electron it will give away its energy to the electron. The electron will have more energy and hence a larger velocity.

Is Flavin an electron carrier?

Flavin mononucleotide and Ubiquinone are electron carriers.

Is FADH2 an electron carrier?

FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain.

How many electron transport chains are there in photosynthesis?

Verified by Expert. There are two electron transfer chains in photosynthesis. Both the two chains (Photosytem I and Photosystem II) are utilized to split water to get electrons.

What are the three types of electron carriers?

respiration. The most “common” terminal electron acceptor for respiration is oxygen.

  • FLAVOPROTEINS. The prosthetic group of a flavoprotein is a flavin.
  • you guessed it Fe-S.
  • Cytochromes. The prosthetic group in cytochromes is heme!
  • What are high energy electron carriers?

    These high-energy electrons are used in photosynthesis. Electron carriers are used to transport the electrons from chlorophyll to other molecules during photosynthesis. NADP+ is a compound that can accept and hold 2 high-energy electrons and 1 hydrogen ion.

    What are the end products of the electron transport system?

    The end products of the electron transport chain are water and ATP. A number of intermediate compounds of the citric acid cycle can be diverted into the anabolism of other biochemical molecules, such as nonessential amino acids, sugars, and lipids. These same molecules can serve as energy sources for the glucose pathways.