background information on photosynthesis

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 ...

Photosynthesis - National Geographic Society ... Photosynthesis

Photosynthesis - Wikipedia ... Photosynthesis

Photosynthesis is the process used by plants, algae and some bacteria to turn sunlight into energy. The process chemically converts carbon dioxide (CO2) and water into food (sugars) and oxygen ...

They do it all through photosynthesis. Photosynthesis is the process of creating sugar and oxygen from carbon dioxide, water and sunlight. It happens through a long series of chemical reactions. But it can be summarized like this: Carbon dioxide, water and light go in. Glucose, water and oxygen come out. (Glucose is a simple sugar.)

Photosynthesis is a multi-step process that requires sunlight, carbon dioxide (which is low in energy), and water as substrates (Figure 8.4). After the process is complete, it releases oxygen and produces glyceraldehyde-3-phosphate (GA3P), simple carbohydrate molecules (which are high in energy) that can subsequently be converted into glucose ...

Photosynthesis consists of a number of photochemical and enzymatic reactions. It occurs in two stages. During the light-dependent stage ("light" reactions), chlorophyll absorbs light energy, which excites some electrons in the pigment molecules to higher energy levels; these leave the chlorophyll and pass along a series of molecules, generating formation of NADPH (an enzyme) and high ...

Stages of the Process. Photosynthesis occurs in two stages: 1) The Light-dependent Reaction. Takes place in the thylakoid membranes of chloroplasts only during the day in the presence of sunlight. High-energy phosphate molecules adenosine triphosphate (ATP) and the reducing agent NADPH are produced with the help of electron transport chain.

Photosynthesis, Chloroplast | Learn Science at Scitable

The whole process of photosynthesis is a transfer of energy from the Sun to a plant. In each sugar molecule created, there is a little bit of the energy from the Sun, which the plant can either use or store for later. Imagine a pea plant. If that pea plant is forming new pods, it requires a large amount of sugar energy to grow larger.

Learn about photosynthesis, the process by which plants and some bacteria use light energy to make sugars and oxygen. Find out the factors, equation, structure, and importance of photosynthesis with diagrams and examples.

6CO2 + 12H2O + light energy → C6H12O6 + 6O2 + 6H2O. Note that the above global equation of photosynthesis emphasizes that the oxygen molecules released into the atmosphere originate from water oxidation, not from carbon dioxide, as established using 18 O-labelled water (Ruben et al., 1941).

Photosynthesis. Photosynthesis is the processes of using sunlight to convert chemical compounds (specifically carbon dioxide and water) into food. Photosynthesizing organisms (plants, algae, and bacteria) provide most of the chemical energy that flows through the biosphere. They also produced most of the biomass that led to the fossil fuels ...

Photosynthesis: What is it and how does it work? - BBC Science Focus Magazine.

Photosynthesis is a multi-step process that requires sunlight, carbon dioxide (which is low in energy), and water as substrates (Figure 3). After the process is complete, it releases oxygen and produces glyceraldehyde-3-phosphate (GA3P), simple carbohydrate molecules (which are high in energy) that can subsequently be converted into glucose, sucrose, or any of dozens of other sugar molecules.

Photosynthesis Explained. A diagram showing the process of photosynthesis. Photosynthesis may very well be one of the most important biological processes that happen on our planet Earth. Plants and some other specific organisms use this process to turn Sun's energy into "food" energy that can sustain them. However, not only those types of ...

Photosynthesis. Learn about the process that plants, algae, and some bacteria use to make their own food and the oxygen we breathe.

Intro to photosynthesis (article)

With limited agricultural land and increasing human population, it is essential to enhance overall photosynthesis and thus productivity. Oxygenic photosynthesis begins with light absorption, followed by excitation energy transfer to the reaction centres, primary photochemistry, electron and proton transport, NADPH and ATP synthesis, and then CO ...

Photosynthesis measurement systems are not designed to directly measure the amount of light the leaf absorbs, but analysis of chlorophyll fluorescence, P700- and P515-absorbance, and gas exchange measurements reveal detailed information about, e.g., the photosystems, quantum efficiency and the CO 2 assimilation rates.

However, photosynthesis produces the sugar glucose, which is an energy storage molecule. Cellular respiration takes the sugar and turns it into a form both plants and animals can use. Photosynthesis requires carbon dioxide and water to make sugar and oxygen. Cellular respiration uses oxygen and sugar to release energy, carbon dioxide, and water.