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The reactions that make up the process of photosynthesis can be divided into light-dependent reactions, which take place in the thylakoids, and light-independent reactions (also known as dark reactions or the Calvin cycle), which take place in the stroma. 1. Chloroplasts have a complex internal structure, and different reactions take place in ...
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Photosynthesis Reactions; Glossary; Evolution. Evolution...
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When it comes to photosynthesis, the most important parts of...
- Reactants and Products
In biology, this information is often expressed using a...
- Mechanisms of Evolution
Photosynthesis Reactions; Glossary; Evolution. Evolution...
- Glossary
Jan 4, 2024 · The Light-Dependent Reaction. Light energy is used to breakdown water in a reaction known as photolysis; this produces hydrogen ions, electrons, and oxygen in the thylakoid lumen. A proton gradient is formed as the photolysis of water results in a high concentration of hydrogen ions in the thylakoid lumen. Electrons travel through an electron ...
Figure 8.8.1 8.8. 1: Light Reactions: Light-dependent reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where the Calvin cycle takes place. The Calvin cycle is not totally independent of light since it relies on ATP and NADH, which are products of the light ...
The net-reaction of all light-dependent reactions in oxygenic photosynthesis is: 2H 2 O + 2NADP+ + 3ADP + 3Pi → O 2 + 2NADPH + 3ATP Key Points Light energy splits water and extracts electrons in photosystem II (PSII); then electrons are moved from PSII to cytochrome b6f to photosystem I (PSI) and reduce in energy.
5 days ago · Photosynthesis is a biological process through which plants, algae, and some bacteria convert light energy into chemical energy, powering essential life functions on Earth. The process involves two main stages: the light-dependent reactions and the light-independent (Calvin cycle) reactions. These stages work together to produce glucose and ...
Sep 21, 2021 · Main Structures and Summary of Photosynthesis. Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.1.4 5.1. 4). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
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The second stage of photosynthesis is called the light-independent reactions, or the Calvin cycle. These reactions occur in the stroma of the chloroplasts and do not require light energy directly. Instead, the ATP and NADPH produced in the light-dependent reactions are used to power the synthesis of carbohydrates from carbon dioxide in the air.
