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The electron donor in oxygenic photosynthesis is water. The electron acceptor in oxygenic photosynthesis is CO2. Chlorophyll is converted from a weak electron donor to a strong electron donor.
In the light reaction, e- are donated by H20 in photosystem II which is located in the thylakoid membrane. In photosystem one, the NADP+ is reduced to NADPH with the electrons from PS II.
Fun fact. Hydrogens from H20 also create a proton gradiant between stroma and thylakoid membrane driving CF1CF0 ATP synthase.
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Where do electrons get their energy from light reactions?
From the photons is solar energy.
Where electrons get their energy in the light reactions?
.From photons in solar energy
What is reduced by electrons in light reactions?
In light reactions of photosynthesis, electrons are reduced by the pigment molecule chlorophyll to produce NADPH and ATP. These reduced molecules carry energy and electrons to the Calvin cycle for the synthesis of carbohydrates.
What does energy come from to make nadaph in light reactions?
From electrons in photosystem I that are excited to a higher energy state by photons of light. Then NADP + is reduced to become NADPH
What reactions convert light energy to chemical energy?
The light dependent reactions take in the light energy and convert that to chemical energy, but it is in the Calvin cycle (light independent reactions) where the chemical energy is stored in a complex sugar.
Where do electrons get their energy from light reactions?
From the photons is solar energy.
Where electrons get their energy in the light reactions?
.From photons in solar energy
What is reduced by electrons in light reactions?
In light reactions of photosynthesis, electrons are reduced by the pigment molecule chlorophyll to produce NADPH and ATP. These reduced molecules carry energy and electrons to the Calvin cycle for the synthesis of carbohydrates.
Which of the following statements about the light reactions of photosynthesis are true?
The light reactions occur in the thylakoid membrane of the chloroplast. The primary goal of the light reactions is to convert light energy into chemical energy in the form of ATP and NADPH. Water is split during the light reactions to provide electrons for the photosystems. The light reactions produce oxygen as a byproduct.
What is the high energy compound that is the result of light dependent reactions?
ATP is produced from the light reactions, which is then coupled with the light independent reactions. NADPH is also produced, but its job is to carry electrons which eventually make ATP.
What does energy come from to make nadaph in light reactions?
From electrons in photosystem I that are excited to a higher energy state by photons of light. Then NADP + is reduced to become NADPH
During what is electrons transferred and energy is released?
Electrons are transferred and energy is released during chemical reactions, such as in redox reactions where one species loses electrons (oxidation) and another gains electrons (reduction). This transfer of electrons leads to the formation of new chemical bonds and the release of energy in the form of heat or light.
Where do electrons get their energy?
Electrons get their energy from the atoms they belong to. They can gain energy through processes like absorption of light or heat, or from chemical reactions. This energy allows electrons to move within the atom or be transferred to other atoms in various forms.
How do the light reactions and dark reactions work together?
The light reactions provide energy carriers for the dark reactions.
What reactions convert light energy to chemical energy?
The light dependent reactions take in the light energy and convert that to chemical energy, but it is in the Calvin cycle (light independent reactions) where the chemical energy is stored in a complex sugar.
What is the role of ATP in light-dependent reaction?
ATP is produced during the light-dependent reactions of photosynthesis through photophosphorylation. It provides energy for the Calvin cycle (dark reactions) by powering enzyme activity and providing the necessary energy for carbon fixation and the synthesis of carbohydrates.
What gives energy to electrons?
Electrons can gain energy from various sources, such as heat, light, or an electric field. When electrons absorb energy, they can be excited to higher energy levels within an atom or molecule. This energy absorption can lead to the electrons participating in chemical reactions or generating electricity in certain materials.
