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What roles do electrons and hydrogen ions play in light-dependent reactions of photosynthesis?
Electrons excited out of the reaction centre in the photosystems are carried along a chain. The electron transport chain pumps protons, just like the respiratory complexes, and the electrons are eventually dumped onto NADP to form NADPH. Protons flow back through ATP synthase, generating ATP.
What else can I help you with?
Why is water important for photosynthesis and how does it contribute to the process?
Water is important for photosynthesis because it serves as a source of hydrogen atoms and electrons needed for the production of glucose. During photosynthesis, water molecules are split into oxygen, hydrogen ions, and electrons through a process called photolysis. The electrons and hydrogen ions are then used in the light-dependent reactions of photosynthesis to produce energy-rich molecules that drive the synthesis of glucose. In summary, water is essential for photosynthesis as it provides the necessary components for the production of glucose, the main product of photosynthesis.
What the functions of NADPH?
An easily understood explanation is: NADPH carries high-energy electrons that were produced by light absorption in chlorophyll to chemical reactions elsewhere in the cell. NADPH is a chemical compound which gives hydrogen atom for the formation of the carbohydrate in the dark reactions of the photosynthesis. Photosynthesis is completed in two steps: Light reactions dark reactions Another explanation: NADPH provides a source of hydrogen for reduction reactions in photosynthesis. In the light independent reactions carbon dioxide is converted into carbohydrate: CO2 --------> CH2O NADPH provides the hydrogen needed for this reaction.
What part of the water molecule is used during photosynthesis?
The hydrogen atoms in the water molecule are used during photosynthesis. Water molecules are split into oxygen, protons, and electrons during the light-dependent reactions in photosynthesis.
How is NADP plus involved in photosynthesis?
NADP+ plays a crucial role in photosynthesis by accepting high-energy electrons and hydrogen to form NADPH during the light-dependent reactions. NADPH then carries these energized electrons to the Calvin cycle (light-independent reactions) to help convert carbon dioxide into glucose and other sugars.
Which process during photosynthesis involves addition of hydrogen?
The process during photosynthesis that involves the addition of hydrogen is the reduction of NADP+ to NADPH. This occurs during the light-dependent reactions, where light energy is used to drive the conversion of NADP+ into NADPH by adding hydrogen ions and electrons from water.
True or false During photosynthesis when electrons are transferred from one molecule to another they are usually carried by hydrogen ions and NADP plus?
False. During photosynthesis, electrons are typically carried by molecules such as chlorophyll and other electron carriers like NADPH, which is a reduced form of NADP+. Hydrogen ions do play a role in some reactions during photosynthesis, but they are not primarily responsible for transferring electrons between molecules.
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.
How energy and hydrogen sequestered in the light reactions of photosynthesis are used to drive the dark reactions of photosynthesis?
You should ask Mr. Newberry. Hahaha
In photosynthesis redox reactions ultimately transfer electrons from where?
§Photosynthesis, like respiration, is a redox (oxidation-reduction) process -Water molecules are split apart by oxidation, which means that they lose electrons along with hydrogen ions (H+) -Then CO2 is reduced to sugar as electrons and hydrogen ions are added to it This means that the electrons are moved from a water molecule to a carbon dioxide molecule. H2O >> CO2
The source of oxygen produced during photosynthesis is?
The source of oxygen produced during photosynthesis is water. During the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons, releasing oxygen as a byproduct.
Where do the hydrogen ions for the photosystems of the light-dependent reactions originate?
The hydrogen ions for the photosystems of the light-dependent reactions originate from water molecules during the process of photosynthesis.
What is the source of h and electrons that end up in glucose?
Hydrogen atoms and electrons that end up in glucose come from the breakdown of water during the light-dependent reactions of photosynthesis. These reactions occur in the thylakoid membrane of chloroplasts, where water is split into oxygen, protons, and electrons, providing the necessary raw materials for the synthesis of glucose in the Calvin cycle.
