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Found Radical 10 times.

Displaying results 1 to 10.

1. Acetyl
CH3CO- This is the radical of acetic acid; it contains a carbonyl and a methyl group.

2. Alkylating agent
A substance which contains an alkyl (derived from an alkane ) radical , with which it can replace a hydrogen atom with itself in an organic compound. As a result, it can act on DNA and interfere with replication , making it useful for destroying cells such as cancer cells.

3. Divalent (bivalent)
An atom or radical group which has a valence of two, or which can combine with two (rather than one) different other atoms or molecules.

4. Glycosyl group
A radical chemical group on a larger molecule, derived from a sugar or starch molecule, which is attached to the rest of the larger molecule by way of a glycosidic bond .

5. Hydrogen peroxide
This alkaline chemical has the formula H2O2 and the structure H-O-O-H, which is able to break apart into free radical s. It is a clear, dense liquid at room temperature which freezes at -41C and boils at 150.2C. It can be dissolved in water and alcohol s. It is also toxic when concentrated and can be a fire and explosion hazard. Hydrogen peroxide is used in bleaches, dyes, cleansers, antiseptics, and disinfectants. It is generated by the body as a potentially harmful byproduct of aerobic cellular respiration which, if left alone, will cause extensive damage to DNA .

6. Peroxidase
A group of enzyme s which remove hydrogen peroxide (H2O2) from the cell by turning it into water. Hydrogen peroxide is a very harmful radical that, if left alone, will cause extensive damage to DNA . These enzymes are thus very important to all living things which use oxygen ( aerobe s) because the use of oxygen in respiration often results in the formation of hydrogen peroxide as a waste product. (The formation of hydrogen peroxide is also a major reason why obligate anaerobes find oxygen to be a poison.)

7. Quantum evolution
An extremely rapid evolutionary change in a single genetic lineage, thought to result from a sudden and radical change in the species' environment.

8. Radical
Of leaves, clustered at the base of the stem.

9. Radical (free radical)
An atom or or electrically neutral molecule that has one or more unpaired electrons in its outer orbital. Free radicals are unstable and react quickly with other atoms and molecules; because of this, they can cause damage to living tissues.

10. Radical mastectomy
The surgical removal of the breast, part of the underlying pectoral muscle and some or all of the lymph nodes under the armpit.

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