BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Electron 14 times.

Displaying results 1 to 10.

1. Electron
A stable atomic particle that has a negative charge; the flow of electrons through a substance constitutes electricity.

2. Electron acceptor
A molecule or compound that gets electrons during an oxidation-reduction reaction.

3. Electron acceptor
A molecule that forms part of the electron transport system that transfers electrons ejected by chlorophyll during photosynthesis . Part of the energy carried by the electrons is transferred to ATP , part is transferred to NADPH, and part is lost in the transfer system.

4. Electron carrier
A protein which can either accept or donate electrons in oxidation-reduction reactions.

5. Electron donor
A molecule or compound that gives up electrons in an oxidation-reduction reaction.

6. Electron microscope
A microscope (device used to magnify small objects) which beams electron s at and through the object of interest instead of light beams. Instead of a glass lens to bend the light, a powerful magnet is used to bend the electron beam. The microscope can only be operated in a vacuum. This type of microscope provides the greatest resolution of extremely small details available and has been used to see individual atoms in an object or substance.

7. Electron microscopy
The use of an electron microscope (a microscope that uses electron beams instead of light beams) to magnify extremely fine details of an object or substance. Since the microscope can only be operated in a vacuum, biological specimens of interest must first be protected by coating it with a thin metal layer, which also outlines the structural features of the specimen.

8. Electron transport
The transport of electron s through a number of electron carrier s in a set sequence.

9. Electron transport chain
A group of electron carrier s in mitochondria (energy-making organelle s found in eukaryote s) which transports electron s to and from each other in a set sequence, for the purpose of generating the energy needed to convert ADP and inorganic phosphate into ATP (used to store energy in units by all living things).

10. Electron transport
1) A series of coupled oxidation / reduction reactions where electrons are passed like hot potatoes from one membrane-bound protein/enzyme to another before being finally attached to a terminal electron acceptor (usually oxygen or NADPH). ATP is formed by this process. 2) coupled series of oxidation/reduction reactions during which ATP is generated by energy transfer as electrons move from high reducing state to lower reducing state.

View web definitions »

Learn more about Electron »