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Related Concept Videos

The Calvin Cycle01:40

The Calvin Cycle

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OverviewOxygenic photosynthesis plays a central role in the global carbon and oxygen cycles. The carbohydrates produced support nearly all food webs, while the oxygen by‑product enables aerobic life.Light‑dependent and light‑independent reactionsPhotosynthesis occurs in two main stages, each in a different part of the chloroplast: light‑dependent reactions and light‑independent reactions, also called the Calvin‑Benson cycle or simply the Calvin...
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Oxygenic Photosynthesis01:26

Oxygenic Photosynthesis

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Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
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What is Photosynthesis?00:39

What is Photosynthesis?

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Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
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Photosystems01:32

Photosystems

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Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
Functioning of Photosystems
Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment...
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Photosystem II01:22

Photosystem II

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The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
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Light as Energy01:35

Light as Energy

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The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
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Tribute: a salute to Alexander Yurievich Borisov (1930-2019), an outstanding biophysicist.

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Author Correction: Rice intermediate filament, OsIF, stabilizes photosynthetic machinery and yield under salinity and heat stress.

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CO<sub>2</sub> uptake and chlorophyll a fluorescence of Suaeda fruticosa grown under diurnal rhythm and after transfer to continuous dark.

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Eugene I. Rabinowitch: A prophet of photosynthesis and of peace in the world.

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Genome-wide association study identifies variation of glucosidase being linked to natural variation of the maximal quantum yield of photosystem II.

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Energy quenching via triplet-excited state formation of glycosylated carotenoids in the photosynthetic reaction center complex of the green sulfur bacterium Chlorobaculum tepidum.

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Related Experiment Video

Updated: Oct 23, 2025

Author Spotlight: Non-Invasive High-Resolution Measurement of Chlorophyll Synthesis During De-Etiolation
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Author Spotlight: Non-Invasive High-Resolution Measurement of Chlorophyll Synthesis During De-Etiolation

Published on: January 12, 2024

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Photosynthesis online.

Larry Orr1, Govindjee

  • 1Center for Bioenergy and Photosynthesis, Department of Chemistry and Biochemistry, Arizona State University, Box 871604, Tempe, AZ 85287-1604, USA. larry.orr@asu.edu

Photosynthesis Research
|June 26, 2010
PubMed
Summary
This summary is machine-generated.

The internet provides crucial information on photosynthesis for diverse audiences, from students to researchers. Online resources are categorized to help users find relevant photosynthesis data and educational materials.

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Area of Science:

  • Plant Biology
  • Biochemistry
  • Educational Technology

Context:

  • The internet and World Wide Web are crucial for disseminating information globally.
  • Public awareness and education increasingly rely on online resources.
  • Diverse groups including students, researchers, and policymakers seek online information.

Purpose:

  • To categorize and describe online resources related to photosynthesis.
  • To facilitate access to relevant information for various user groups.
  • To highlight the importance of web-based learning and research in plant science.

Summary:

  • Online information on photosynthesis is organized into five categories: group sites, subject-specific sites, individual researcher sites, educator/student resources, and other useful sites.
  • This categorization aids users in navigating the vast amount of available online data.
  • Effective organization of web resources enhances the accessibility of photosynthesis knowledge.

Impact:

  • Improved public understanding of photosynthesis and its importance.
  • Enhanced educational and research capabilities through accessible online data.
  • Facilitation of informed decision-making by policymakers and citizens regarding environmental and biological topics.