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What are the chemical products of light reaction?
The main chemical products of the light reaction in photosynthesis are ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). These molecules are energy carriers that are essential for the next stage of photosynthesis, the Calvin cycle.
What is a chemical reaction summarizing the reactants used and the end products in the first stage?
A chemical reaction is a process that involves the rearrangement of atoms to form new substances. In the first stage, reactants such as hydrogen and oxygen combine to form water as the end product. This reaction is represented by the equation: 2H2 + O2 -> 2H2O.
What is light reaction and dark reaction?
Photosynthesis can be divided into two part: light reaction is the first stage of photosynthesis, occurring only in the presence of light, during which energy captured from light drives the production of ATP. dark reaction is the second stage of photosynthesis, not requiring light to occur, and during which energy released from ATP drives the production of organic molecules from carbon dioxide.
What statement best describes the different between hydrogen fuel cells and hydrogen fusion?
Hydrogen fuel cells generate electricity through a chemical reaction between hydrogen and oxygen, producing water as the only byproduct. Hydrogen fusion, on the other hand, involves combining hydrogen isotopes under high temperature and pressure to release energy, mimicking the process that powers the sun. Fusion has the potential to generate much more energy than fuel cells but is still in the research and development stage for practical applications.
What is a stable isotope of hydrogen and an essential part of the hydrogen bomb?
Deuterium is a stable isotope of hydrogen, with one proton and one neutron in its nucleus. It is used in the fusion stage of a hydrogen bomb to initiate the explosive chain reaction.
What stage does water split into hydrogen and oxygen in photosynthesis?
at the stage of hydrolysis where the water is split into h2 and o .the oxygen gets liberated and hydrogen joins the NADP to form NADPH2.This NADPH2 is utilized for Calvin's cycle
What stage is sunlight needed in photosynthesis?
The first stage of photosynthesis is wherein water is necessary. Water is photochemically split into oxygen, electrons and hydrogen ions together with light reaction.
In photosynthesis the source of electrons is?
The electrons come from water. In the light dependent stage water is split into hydrogen ions (H+), electrons and oxygen. The electrons are passed on to chlorophyll, the H+ ions combine with NADP to form NADPH and the oxygen is released.
What is the first phase of photosynthesis?
The first phase of photosynthesis is the light-dependent reactions, which occur in the thylakoid membranes of chloroplasts. In this phase, light energy is captured and used to split water molecules into oxygen, protons, and electrons.
How does the light reaction of photosynthesis affect the earths supply of oxygen?
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
What does the hydrogen used in stage 2 of photosynthesis come from?
The splitting of water in stage 1.
Is the production of hydrogen and energy happen in the first stage of photosynthesis?
no
When does photosynthesis produce oxygen?
Light Dependant ReactionCarbon dioxide + H2O + SUNLIGHT => NaDPH + O2 + ATPThen the NaDPH and the ATP goes to the dark reactions, or the Calvin-Benson Cycle.
What is the main characteristics of the first stage of photosynthesis?
The main characteristic of the first stage of photosynthesis, called the light-dependent reactions, is that it takes place in the thylakoid membrane of the chloroplasts. During this stage, light energy is absorbed by chlorophyll and converted into chemical energy in the form of ATP and NADPH, which are used in the next stage of photosynthesis to produce glucose.
What important process in plants requires water?
Water is required for the 'photolysis of water' which is the first stage of photosynthesis. Light enters the cell and strikes the water molecule splitting it into Hydrogen and Oxygen (from H2O).
Where does the hydrogen in glucose ultimately come from?
the hydrogen molecules are separeted from the water molecules in the equation, and since the law of conservation of mass states that matter cannot be created or destroyed, the hydrogen is combined with the carbon and oxygen molecules to form glucose
What is the significance of photolysis of water?
Photolysis of water is significant because it plays a key role in photosynthesis which is the process used by a plant to make sugar. Without photolysis of water photosynthesis wouldn't be possible. Without photosynthesis, sugar couldn't be made and life as we know it on Earth wouldn't exist.
