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PCAT Word List # PCAT/M119

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Explanation of concentration (noun)
form plural: concentrations

the amount of a substance within a second substance, usually in a solution

Sample of concentration
The concentration of the solution was one mole.



   
Explanation of beta-carotene (noun)
form: no plural

a nutrient found throughout plant and animal species

Sample of beta-carotene
The liver converts beta-carotene to vitamin A.



   
Explanation of toughness (noun)
form: no plural

the amount of effort or energy required to break an object

Sample of toughness
Toughness is a property of metals.



   
Explanation of autoantibody (noun)
form plural: autoantibodies

protein formed to fight the body's own cells

Sample of autoantibody
Autoantibodies are implicated in autoimmune diseases.



   
Explanation of osmosis (noun)
form: no plural

process where solvent molecules, e.g. water, pass through a selectively permeable membrane from a region of high concentration to a region of low concentration

Sample of osmosis
Osmosis is a special form of diffusion.
Reverse osmosis units for freshwater fish are all very well, but many fish keepers who use them are forced to mix the water obtained with raw tap water before adding it to the tank, simply because they cannot afford the expense of a separate carbon filter.



   
Explanation of poisoning (noun)
form plural: poisonings

the act of being damaged by a toxic compound

Sample of poisoning
There are many cases of drug poisoning each year.



   
Explanation of directions (noun)
form: only plural

instructions; manual containing information on how to use a drug or medication

Sample of directions
We were given a number of examples of persons who would not comply with medical directions, due to inability to read written instructions or because verbal instructions were not presented in a way in which they could be understood.



   
Explanation of neutron (noun)
form plural: neutrons

uncharged particle found in the nucleus of the atom

Sample of neutron
Protons and neutrons have similar masses.



   
Explanation of nasal (adjective)
relating to the nose

Sample of nasal
Air passes down the nasal passages towards the lungs.



   
Explanation of cardiac (adjective)
of the heart

Sample of cardiac
The patient died after a cardiac arrest.



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