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Nov 13, 2024 · In chemical terms, photosynthesis is a light-energized oxidation–reduction process. (Oxidation refers to the removal of electrons from a molecule; reduction refers to the gain of electrons by a molecule.) In plant photosynthesis, the energy of light is used to drive the oxidation of water (H 2 O), producing oxygen gas (O 2), hydrogen ions (H ...
Light also has a particulate nature, and those particles are called photons. The photons in light provide the energy that drives photosynthesis. This energy is used to incorporate carbon found in CO 2 from the atmosphere into organic molecules and, in particular, into simple sugars used by the plant.
The chapter outlines the important steps in the photosynthesis reactions and differentiates between the light-dependent reactions and the light-independent reactions in photosynthesis. Finally, the chapter explains the concepts of photorespiration and compares the three major photosynthetic pathways used by plants (C3, C4, and CAM).
Jul 26, 2022 · Light also has a particulate nature, and those particles are called photons. The photons in light provide the energy that drives photosynthesis. This energy is used to incorporate carbon found in CO 2 from the atmosphere into organic molecules and, in particular, into simple sugars used by the plant.
For the same reasons, plant pigment molecules absorb only light in the wavelength range of 700 nm to 400 nm; plant physiologists refer to this range for plants as photosynthetically-active radiation. The visible light seen by humans as the color white light actually exists in a rainbow of colors in the electromagnetic spectrum, with violet and blue having shorter wavelengths and, thus, higher ...
Sep 30, 2021 · Advertisement. The energy coming into the plant cell through light waves is absorbed by the chlorophyll and converted into chemical energy. This new chemical energy comes in two forms: ATP, or adenosine triphosphate, and nicotinamide adenine dinucleotide phosphate (NADPH). Both are chemicals found in most living cells and are used for energy.
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photosynthesis, Process by which green plants and certain other organisms transform light into chemical energy.In green plants, light energy is captured by chlorophyll in the chloroplasts of the leaves and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds (simple and complex sugars) that are the basis of both plant and animal life.
