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MCAT Word List # MCAT/W110

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Description of diffusion (noun: no plural)
transmission of light through a surface

Samples of diffusion
Diffusion accounts for the fact that an open bottle of perfume can quickly be smelled across the room.



   
Description of composition (noun: plural: compositions)
the contents

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

Determination of composition
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Description of protein (noun: plural: proteins)
a sequence of amino acids; food needed for growth and repair

Samples of protein
Proteins may have structural, enzymatic, hormonal, contractile or transport functions.
Meat is s high-protein food source.



   
Description of disaccharide (noun: plural: disaccharides)
sugar made up of two monosaccharides

Samples of disaccharide
Sucrose is a disaccharide.

Determination of disaccharide
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Description of atrioventricular node (noun: no plural)
muscle fibers in the heart receiving heartbeat impulses

Samples of atrioventricular node
The atriventricular node works slowly allowing enough time for the artrial contraction and for the ventricles to fill with blood.

Determination of atrioventricular node
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Description of ionic bond (noun: plural: ionic bonds)
bonds held between ions in an ionic compound

Samples of ionic bond
Ionic bonds, unlike covalent ones, do not involve electron sharing.



   
Description of nipple (noun: plural: nipples)
sensitive nodule of tissue in the center of the breast

Samples of nipple
The milk ducts open onto the nipple.



   
Description of I.Q. (abbreviation: intelligence quotient)
measure of an individual's intelligence

Samples of I.Q.
The I.Q. is an index of intellectual development.



   
Description of indicator (noun: plural: indicators)
used to detect the end-point during titration

Samples of indicator
Acid-base indicators will alter their color over a range of different PH values.



   
Description of blood pressure (noun: no plural)
this is the pressure of the blood against the arterial walls

Samples of blood pressure
Blood pressure varies over the day.

Determination of blood pressure
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