Phototrophs (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light' and τροφή (trophḗ) 'nourishment') are organisms that carry out photon capture to produce complex organic compounds (e.g. carbohydrates) and acquire energy. They use the energy from light to carry out various cellular metabolic processes.

Phototrophy (or “light eating”) refers to the process by which energy from the sun is captured and converted into chemical energy, in the form of ATP.

2024年11月23日 · Photoautotrophs convert inorganic materials into organic materials for use in cellular functions such as biosynthesis and respiration and provide nutrition for many other forms of life. Photoheterotrophs depend on light for their source of energy and mostly organic compounds from the environment for their source of carbon.

2024年3月31日 · They use redox reactions to fix carbon, or in other words, convert it from an inorganic to organic form. For example, a phototroph that fixes carbon by converting carbon dioxide into glucose would need to add four electrons to each carbon dioxide from some electron source. Electrons are transferred in the reaction and thus it is a redox reaction.

2025年1月30日 · Phototrophs are organisms that use light to make their own food. They convert sunlight into energy through photosynthesis. Examples include plants, algae, and some bacteria. Phototrophs play a vital role in our world. They harness light to create energy. This process is essential for life on Earth.

2 天之前 · The process of photosynthesis is commonly written as: 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O 2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

2023年6月13日 · Phototrophs are organisms that capture particles of light (photons) and transform their electromagnetic energy into energy stored in unstable molecules, such as ATP and carbohydrates. Phototrophs eat light.

Phototrophy involving an electron transport system includes photoexcitation of (bacterio)chlorophyll and generation of PMF which leads to synthesis of ATP as protons flow down their concentration gradient (“chemiomosis”), through the membrane-bound ATP synthase.

Phototrophy (or “light eating”) refers to the process by which energy from the sun is captured and converted into chemical energy, in the form of ATP.

2021年7月21日 · Phototrophs are organism s that use light energy for certain metabolic functions. They absorb photon s from light to carry out cellular functions such as biosynthesis and respiration. There are two groups of phototrophs: the photoautotroph s and the photoheterotroph s although the latter are considered as members of a subgroup of heterotrophs.