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MCAT Word List # MCAT/M9

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Explanation of valence electrons (noun)
form: only plural

electrons in the outer shell

Sample of valence electrons
Valence shell electrons determine how many electrons an atom can donate, receive or share.

Medical term valence electrons
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of sebum (noun)
form: no plural

the oily substance made by the sebaceous glands

Sample of sebum
Sebum provides a layer over the skin to slow evaporation.



   
Explanation of hypertension (noun)
form: no plural

high blood pressure

Sample of hypertension
Hypertension is often asymptomatic.



   
Explanation of single bond (noun)
form plural: single bonds

covalent bond where one electron pair is shared between two atoms

Sample of single bond
An example of a single bond is the bond shared between hydrogen atoms in a hydrogen molecule.



   
Explanation of AIDS (abbreviation, acronym)
acquired immune deficiency syndrome

immunde deficiency disease that cannot be cured

Sample of AIDS
AIDS is a devastating illness related to HIV.



   
Explanation of gland (noun)
form plural: glands

group of cells specialized to produce secretory substances

Sample of gland
There are two types of gland: exocrine or endocrine.



   
Explanation of autoradiography (noun)
form: no plural

technique of using radioactive molecules to identify cell structures and biochemical activity producing an image or photographic film

Sample of autoradiography
Autoradiography can be used to label amino acids with radioactive molecules to examine the pathways of protein sythesis.

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


   
Explanation of somatic (adjective)
relating to the body

Sample of somatic
Somatic cells undergo mitosis.



   
Explanation of release (verb)
forms: released; released; releasing

to let go

Sample of release
Energy is released as electrons pass along the electron transport chain.



   
Explanation of differentiate (verb)
forms: differentiated; differentiated; differentiating

to develop toward a more advanced or specialized state

Sample of differentiate
Lymphocytes differentiate into plasma cells.



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