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What part of photosynthesis generates no ATP from ADP?
The light-dependent reactions in photosynthesis generate oxygen from water. No ATP is produced during this step.
What happens to water in the light dependent reactions?
In the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons. This process, known as photolysis, releases oxygen as a byproduct and provides electrons to the photosystem II complex, which helps generate ATP and NADPH for the Calvin cycle.
Where does cyclic electron transport occur?
Cyclic electron transport occurs in the thylakoid membrane of chloroplasts during the light reactions of photosynthesis. It involves the flow of electrons through the photosynthetic electron transport chain to generate ATP without the production of NADPH.
What is a portion of photosynthesis that uses sunlight to break apart water?
The portion of photosynthesis that uses sunlight to break apart water is known as the light-dependent reactions, or photophosphorylation. This process occurs in the thylakoid membranes of chloroplasts, where light energy is captured by chlorophyll and used to split water molecules (H2O) into oxygen, protons, and electrons. The released oxygen is a byproduct, while the electrons and protons are utilized in subsequent reactions to generate energy-rich molecules like ATP and NADPH.
Which process requires electrons that are obtained by the splitting of water A cyclic photophosphorylation B noncyclic photophosphorylation C Photorespiration?
B noncyclic photophosphorylation requires electrons that are obtained by the splitting of water. The process involves the flow of electrons through both photosystem I and photosystem II to generate ATP and NADPH for the light-independent reactions of photosynthesis.
What is the role of water in photosynthesis and how does it contribute to the overall process?
Water plays a crucial role in photosynthesis by providing the necessary electrons for the light-dependent reactions. During this process, water molecules are split into oxygen, protons, and electrons. The electrons are then used to produce energy in the form of ATP and NADPH, which are essential for the synthesis of glucose in the light-independent reactions. In summary, water is essential for photosynthesis as it provides the electrons needed to generate energy and ultimately produce glucose, the main product of photosynthesis.
What electron move high energy between photosystems?
The electrons that move between photosystems in photosynthesis are energized by sunlight and carried by electron carrier molecules such as plastocyanin and ferredoxin. These high-energy electrons are transferred through a series of redox reactions in the electron transport chain to generate ATP and NADPH for the light-dependent reactions of photosynthesis.
What part of photosynthesis generates no ATP from ADP?
The light-dependent reactions in photosynthesis generate oxygen from water. No ATP is produced during this step.
How are electrons split in a process to generate energy?
Electrons are split in a process called oxidation-reduction reactions, where they are transferred between molecules. This transfer of electrons creates a flow of energy that can be harnessed to generate electricity.
Which complex or enzyme of photosynthesis consumes h2o?
The complex known as Photosystem II in the thylakoid membrane of chloroplasts is responsible for splitting water (H2O) into oxygen, protons (H+), and electrons during the light-dependent reactions of photosynthesis. This process provides the electrons needed to generate ATP and NADPH for use in the Calvin cycle.
Why are Electron carriers important in photosynthesis?
Electron carriers, such as NADP+ and ferredoxin, play a crucial role in photosynthesis by shuttling high-energy electrons during the light-dependent reactions. These carriers help to transfer electrons from water to generate ATP and NADPH, which are essential for the Calvin cycle to produce sugars. Overall, electron carriers facilitate the conversion of light energy into chemical energy that is used to drive the synthesis of organic molecules in plants.
What are the 3 substances that are produced when water molecules are broken down in the light reactions?
When water molecules are broken down in the light reactions of photosynthesis, the three main products are oxygen, protons (H+ ions), and electrons. These products are used to generate ATP and NADPH, which are essential for producing sugar molecules in the Calvin cycle.
Why photosynthesizing plants rely on water?
Plants rely on water for photosynthesis because it provides the necessary electrons during the light reactions of photosynthesis. Water is split into oxygen and hydrogen ions, which release electrons that replace those lost by chlorophyll molecules. These electrons are transported through the electron transport chain to generate ATP and NADPH, which are used to convert carbon dioxide into glucose during the Calvin cycle.
What happens to water in the light dependent reactions?
In the light-dependent reactions of photosynthesis, water molecules are split into oxygen, protons, and electrons. This process, known as photolysis, releases oxygen as a byproduct and provides electrons to the photosystem II complex, which helps generate ATP and NADPH for the Calvin cycle.
What are the various chemical reactions involved in the process of photosynthesis and how do they contribute to the production of glucose in plants?
Photosynthesis involves two main chemical reactions: the light-dependent reactions and the light-independent reactions (Calvin cycle). In the light-dependent reactions, light energy is used to split water molecules into oxygen, protons, and electrons. These electrons are then used to generate ATP and NADPH, which are energy carriers. In the Calvin cycle, ATP and NADPH are used to convert carbon dioxide into glucose through a series of enzyme-catalyzed reactions. Overall, these reactions work together to capture light energy and convert it into chemical energy in the form of glucose, which is essential for plant growth and survival.
Where does cyclic electron transport occur?
Cyclic electron transport occurs in the thylakoid membrane of chloroplasts during the light reactions of photosynthesis. It involves the flow of electrons through the photosynthetic electron transport chain to generate ATP without the production of NADPH.
What is a portion of photosynthesis that uses sunlight to break apart water?
The portion of photosynthesis that uses sunlight to break apart water is known as the light-dependent reactions, or photophosphorylation. This process occurs in the thylakoid membranes of chloroplasts, where light energy is captured by chlorophyll and used to split water molecules (H2O) into oxygen, protons, and electrons. The released oxygen is a byproduct, while the electrons and protons are utilized in subsequent reactions to generate energy-rich molecules like ATP and NADPH.
