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MCAT Word List # MCAT/M93

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  Word Explanations autotroph, receptor, nephron, variable, nipple, gas volume calculations, infestation, first aid, artery, Down's Syndrome


   
Explanation of autotroph (noun)
form plural: autotrophs

organism that makes their own food from simple food sources

Sample of autotroph
Algae, plants and certain bacteria are autotrophs.



   
Explanation of receptor (noun)
form plural: receptors

sensory cell

Sample of receptor
A receptor detects sensory stimuli (information).



   
Explanation of nephron (noun)
form plural: nephrons

filtering unit in the kidney; part of the kidney which removes waste products from the blood

Sample of nephron
The nephron filters waste products from the blood and forms urine.
Each kidney consists of one million nephrons.



   
Explanation of variable (noun)
form plural: variables

a factor which can change and needs to be accounted for in a situation or experiment

Sample of variable
It is difficult to control for all the variables in an experiment.



   
Explanation of nipple (noun)
form plural: nipples

sensitive nodule of tissue in the center of the breast

Sample of nipple
The milk ducts open onto the nipple.



   
Explanation of gas volume calculations (noun)
form: only plural

these use the gas laws (Avogadro's and Gay-Lussac's law) to analyze the volumes of gases involved in a reaction

Sample of gas volume calculations
Gas volume calculations are simple when all the reactants and products are gases.



   
Explanation of infestation (noun)
form plural: infestations

invasion of the body by parasites either on the skin or inside the body

Sample of infestation
Infestations of hair lice are common in schools.



   
Explanation of first aid (noun)
form: no plural

the initial care used in emergencies to help a wounded or ill person

Sample of first aid
First aid can save lives.



   
Explanation of artery (noun)
form plural: arteries

carries oxygenated blood from the heart to the rest of the body

Sample of artery
The main artery of the body is the aorta.



   
Explanation of Down's Syndrome (noun)
form: no plural

inherited disease due to an extra chromosome 21; also known as 'trisomy 21'

Sample of Down's Syndrome
People with Down's Syndrome have an increased risk of thyroid disease.



  Explain the words autotroph, receptor, nephron, variable, nipple, gas volume calculations, infestation, first aid, artery, Down's Syndrome

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     MCAT vocabulary test: Vocabulary Building: Example of Nouns         Free MCAT test: Free word games online: Nouns Game         MCAT Words: (printable version)         Meaning of autotroph, receptor, nephron, variable, nipple, gas volume calculations, infestation, first aid