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MCAT Word List # MCAT/W46

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Description of displace (verb: displaced; displaced; displacing)
to move something out of position

Samples of displace
If a bone is displaced from its usual position with the joint we say the joint is dislocated.



   
Description of feedback inhibition (noun: only plural)
cellular control process in which an enzyme is inhibited when reaching a certain blood level

Samples of feedback inhibition
Feedback inhibition is a widespread process in organisms which allows them to avoid an overproduction of metabolites.

Determination of feedback inhibition
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Description of diffraction (noun: no plural)
change in the directions and intensities of a group of waves after passing by a barrier

Samples of diffraction
Diffraction is the spreading out of light as it passes through a narrow opening.

Determination of diffraction
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Description of catecholamines (noun: only plural)
the hormones adrenaline and noradrenaline that are made and secreted by the adrenals

Samples of catecholamines
Catecholamines are released in reaction to stress.

Determination of catecholamines
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Description of inside (adverb)
within something; interior; opposite to outside

Samples of inside
The body has defenses to help stop bacteria or other invaders getting inside the body.



   
Description of hemi- (preffix)
denotes a half of the body

Samples of hemi-
The left cerebral hemisphere controls the right side of the body.



   
Description of ovum (noun: plural: ova)
female sex cell; gamete

Samples of ovum
In assisted fertilization the fertilized ovum is implanted into the uterus.



   
Description of adiabatic (adjective)
related to a thermodynamic process involving no heat exchange

Samples of adiabatic
Loss or gain of heat does not occur during an adiabatic process.



   
Description of foot (noun: plural: feet)
part of the body at the end of the leg on which we stand; 12 inches

Samples of foot
The feet allow us to walk great distances.



   
Description of motor neuron (noun: plural: motor neurons)
nerve cell that conducts messages from the brain and the spinal cord to the muscles

Samples of motor neuron
Motor neurons are also called efferent neurons as they carry messages to effector cells.

Determination of motor neuron
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