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What is ATP in biology simple?

2022-07-30 16:00:03
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What is ATP in biology simple?

Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

What is ATP example?

ATP contains a large amount of chemical energy stored in its high-energy phosphate bonds. It releases energy when it is broken down (hydrolyzed) into ADP (adenosine diphosphate). Energy is used for many metabolic processes. Hence, ATP is considered the universal energy currency for metabolism.

What is ATP in biology formula?

Adenosine triphosphate is composed of the nitrogenous base adenine, the five-carbon sugar ribose, and three phosphate groups. ATP is hydrolyzed to ADP in the reaction ATP+H2O→ADP+Pi+ free energy; the calculated ∆G for the hydrolysis of 1 mole of ATP is -57 kJ/mol.

How is ATP produced in plants?

Plants, through the process of photosynthesis, make use of the sunlight to energise and generate glucose through the available water and carbon dioxide. This glucose through pathways can be converted into pyruvate. Through cellular respiration, pyruvate in turn gives ATP (adenosine triphosphate).

What is ATP and ADP in biology?

ATP (Adenosine tri-phosphate) is an important molecule found in all living things. Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate.

What is difference between ADP and ATP?

ATP is adenosine triphosphate and contains three terminal phosphate groups, whereas ADP is adenosine diphosphate and contains only two phosphate groups. ADP is produced on hydrolysis of ATP and the energy released in the process is utilised to carry out various cellular processes.

What is ADP in photosynthesis?

Adenosine bonded to two phosphate groups is ADP. In the energy production cycle. in the chloroplasts and mitochondria, energy is stored when ATP is produced from. ADP and a phosphate group "P". The ATP/ADP cycle provides energy for cellular activity.

What is ADP and NADP?

ATP - Adenosine triphosphate. ADP - Adenosine diphosphate. NADP - Nicotinamide adenine dinucleotide phosphate. NADPH - The reduced form of NADP. In the Light Dependent Processes i.e Light Reactions, the light strikes chlorophyll a in such a way as to excite electrons to a higher energy state.

What is NADPH function?

Nicotinamide adenine dinucleotide phosphate (NADPH) is an essential electron donor in all organisms, and provides the reducing power for anabolic reactions and redox balance. NADPH homeostasis is regulated by varied signaling pathways and several metabolic enzymes that undergo adaptive alteration in cancer cells.

What produces NADPH and ATP?

Photosynthesis takes place in two distinct stages. In the light reactions, energy from sunlight drives the synthesis of ATP and NADPH, coupled to the formation of O from HO. In the dark reactions, so named because they do not require sunlight, the ATP and NADPH produced by the light reactions drive glucose synthesis.

What is produced by photosystem 2?

Photosystem II is the first membrane protein complex in oxygenic photosynthetic organisms in nature. It produces atmospheric oxygen to catalyze the photo-oxidation of water by using light energy.

Where do photosystems occur?

thylakoid membranes

Photosystems are found in the thylakoid membranes of plants, algae, and cyanobacteria. These membranes are located inside the chloroplasts of plants and algae, and in the cytoplasmic membrane of photosynthetic bacteria. There are two kinds of photosystems: PSI and PSII.

Is chlorophyll a?

Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light, and it is a poor absorber of green and near-green portions of the spectrum.
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Chlorophyll a.
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CompTox Dashboard ( EPA )DTXSID90889346
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Does oxidative phosphorylation require light?

Oxidative phosphorylation utilises molecular oxygen during the synthesis of ATP, and it takes place near the membranes of the mitochondria while photophosphorylation utilizes sunlight as the energy source for the production of ATP, and it takes place in the thylakoid membrane of the chloroplast.

What is photo photophosphorylation?

Photophosphorylation is the conversion of ADP to ATP using the energy of sunlight by activation of PSII. This involves the splitting of the water molecule in oxygen and hydrogen protons (H), a process known as photolysis.

Where does the H+ come from that makes ATP synthase work?

The electrons from from NADH and FADH flow through the electron transport chain in the inner mitochondrial membrane generating a H+ buildup in the inner membrane space. This proton gradient (gradient of H+) flowing through the membrane enzyme complex ATP synthetase is the direct energy source for producing ATP.

What is the difference between cyclic and noncyclic photophosphorylation?

Non-cyclic photophosphorylation produces 1 ATP and 2 NADPH2 molecules.
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Difference Between Cyclic and Noncyclic Photophosphorylation.
Cyclic PhotophosphorylationNon-Cyclic Photophosphorylation
Electrons tend to pass in a cyclic manner.Electrons tend to pass in a non–cyclic manner.

What is the difference between ps1 and ps2?

The main difference between photosystem 1 and 2 is that PS I absorbs longer wavelengths of light (>680 nm) whereas PS II absorbs shorter wavelengths of light (<680 nm).

What is FRS in cyclic photophosphorylation?

In the cycle photophosphorylation, light lifts the electron from P 700 to FRS or ferredoxin. The excited electron returns to P 700 through two to three transfer steps to decreasing redox potentials. It is during such a downhill migration of the electron that enough energy is released for ATP synthesis.

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".