Page 4 - ICC Science Dictionary (spreads)
P. 4
Word Definition Topic(s) Word Definition Topic(s)
addition Chemical reaction in which C7 AIDS Acquired Immune Deficiency B3
polymerisation unsaturated monomers (small Syndrome – a disease of the
molecules) join together by human immune system caused
addition reactions to produce a by infection with Human
polymer (long molecule). Immunodeficiency Virus (HIV).
addition Type of reaction in which two C7 air resistance A force of friction produced when P5
reaction substances react together to form an object moves through the air.
one new substance. alcohol A depressant that can be found in B2, P5
ADH A hormone produced in the B5 wines, spirits and beers. Ethanol is
pituitary gland that controls the a type of alcohol.
volume and concentration of urine. An organic compound containing C7
adult stem A type of stem cell found in B1a, B1b a hydroxyl group, -OH. The
cell specific locations in adults. Adult 'alcohol' in alcoholic drinks
stem cells can only differentiate is ethanol, produced by the
into a limited number of related fermentation of sugars and found
cell types. in wines, spirits and beers.
aerobic Breaking down glucose with TB5, B1a, B1b, algae A group of organisms that C9
respiration oxygen to release energy and B2, B4 photosynthesise but lack the
producing carbon dioxide and complex range of cell types
water. and organs found in land plants.
agar gel A jelly-like substance that is derived B1a, B1b, B3 Most algae are aquatic. All have
from a type of seaweed and used chloroplasts.
in the lab as a medium on which to alkali A chemical with a pH above 7 TC3
grow bacteria and fungi. and has the particle OH-.
agar plate A Petri dish that contains agar gel B3 A base which is soluble in water. B2
and usually some nutrients. Agar
plates are used to culture (grow) Substance producing more C4, C5
bacteria and fungi in the lab. hydroxide ions than hydrogen ions
when dissolved in water.
agriculture The cultivation of crops and C10, B5, B7a,
animals to produce food and B7b alkaline Having a pH greater than 7. B6, C4
other products. alkane Saturated hydrocarbon. A C7
compound of hydrogen and
carbon only, with no C=C bonds.
