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PCAT Word List # PCAT/W8

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Description of creatine (noun: no plural)
an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates

Samples of creatine
Creatine is stored in muscle cells and made in the liver, pancreas and kidney.



   
Description of in vitro (noun: no plural)
referring to processes and experiments occurring outside an organism in an artificial environment

Samples of in vitro
In vitro fertilization helps couples who can not conceive.



   
Description of ketone (noun: plural: ketones)
an organic compound that contains two alkyl groups attached to a carbonyl group

Samples of ketone
Fructose is a ketone.
In many plants, secondary compounds are concentrated in the trichomes and, for example, a ketone is thus concentrated in the hairs of tomato plants, but that same ketone has been found in the defence secretions of termites and caterpillars.



   
Description of thermal (adjective)
relating to heat

Samples of thermal
A thermal reaction is one that involves a heat exchange.



   
Description of reflex action (noun: plural: reflex actions)
a stereotyped and non-voluntary response that occurs in response to a stimulus

Samples of reflex action
Constriction of the pupil in response to light is a reflex action.

Determination of reflex action
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Description of endocytosis (noun: no plural)
process where substances are taken into a cell

Samples of endocytosis
Phagocytosis is an example of endocytosis.

Determination of endocytosis
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Description of concentration gradient (noun: plural: concentration gradients)
a ratio of the quantity of a substance from one section to another

Samples of concentration gradient
During diffusion particles naturally move down the concentration gradient.

Determination of concentration gradient
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Description of race (noun: plural: races)
humans considered as a group, breed or strain

Samples of race
The human race may eventually die out.



   
Description of trachea (noun: no plural)
'windpipe'; cartilaginous tube that connects the larynx to the bronchi

Samples of trachea
The trachea is usually between 10 and 12 centimetres long.



   
Description of avoid (verb: avoided; avoided; avoiding)
to keep away from; to prevent from happening

Samples of avoid
If you enjoy an occasional drink this may do no harm but by cutting out drink altogether you avoid any possible risks.



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