Search results
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. Electrons are re-energized in PSI and those high energy electrons reduce NADP + to NADPH.
- 5.2: The Light-Dependent Reactions of Photosynthesis
In plants, pigment molecules absorb only visible light for...
- 8.5: The Light-Dependent Reactions of Photosynthesis ...
Light energy initiates the process of photosynthesis when...
- 5.2: The Light-Dependent Reactions of Photosynthesis
Course: Biology archive > Unit 11. Lesson 2: The light-dependent reactions. Conceptual overview of light dependent reactions. Light dependent reactions actors. Photosynthesis: Overview of the light-dependent reactions.
Sep 21, 2021 · In plants, pigment molecules absorb only visible light for photosynthesis. The visible light seen by humans as white light actually exists in a rainbow of colors. Certain objects, such as a prism or a drop of water, disperse white light to reveal these colors to the human eye.
The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH.
Light energy enters the process of photosynthesis when pigments absorb the light. In plants, pigment molecules absorb only visible light for photosynthesis. The visible light seen by humans as white light actually exists in a rainbow of colors.
- Charles Molnar, Jane Gair
- 2015
In plants, pigment molecules absorb only visible light for photosynthesis. The visible light seen by humans as white light actually exists in a rainbow of colors. Certain objects, such as a prism or a drop of water, disperse white light to reveal these colors to the human eye.
Light energy initiates the process of photosynthesis when pigments absorb the light. Organic pigments have a narrow range of energy levels that they can absorb. Energy levels lower than those represented by red light are insufficient to raise an orbital electron to an excited, or quantum, state.
