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MCAT Word List # MCAT/M21

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Explanation of tertiary structure (noun)
form plural: tertiary structures

the overall conformation of each polypeptide chain making up the protein

Sample of tertiary structure
The tertiary structure results from the coiling or folding of the alpha helix or beta pleated sheet into an overall shape e.g. globular shape.

Medical term tertiary structure
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of benzene ring (noun)
form: no plural

formation where 6 benzene atoms are arranged in a ring, which has alternating single and double bonds, and a hydrogen atom, attached to each carbon atom

Sample of benzene ring
The structure of the benzene ring was discovered by Kekule in a dream.



   
Explanation of acid catalysis (noun)
form: no plural

any reaction where an acid catalyst is used to speed up the reaction

Sample of acid catalysis
Acid catalysis of an ester is used to hydrolyse the ester to alcohol and a carboxylic acid.



   
Explanation of deformity (noun)
form plural: deformities

an unusual shape of part of the body

Sample of deformity
Genetic diseases cause deformities.



   
Explanation of adenoids (noun)
form: no plural

lymphoid tissue at the back of the throat

Sample of adenoids
If the adenoids become swollen due to infection they may inhibit breathing.



   
Explanation of circulatory system (noun)
form plural: circulatory systems

the blood; lymph vessels and heart which form the transportation system of the body

Sample of circulatory system
The circulatory system helps control water balance and defends the body against disease.

Medical term circulatory system
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of plasma (noun)
form: no plural

the liquid part of blood

Sample of plasma
Plasma carries digested food from the small intestine to all of the cells of the body.



   
Explanation of composition (noun)
form plural: compositions

the contents

Sample of composition
The composition of the body is 70% water.



   
Explanation of deleterious (adjective)
forms: more deleterious; most deleterious; less deleterious; least deleterious

having a harmful effect on something

Sample of deleterious
Pollution has a deleterious effect on the environment.



   
Explanation of cyst (noun)
form plural: cysts

a membrane lined vesicle or sac

Sample of cyst
Cysts can grow on the surface or deep inside anatomical structures.



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