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MCAT Word List # MCAT/M95

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  Word Explanations cerebrum, charge, substitute, pleura, plexus, neurulation, greenhouse gases, flagellum, determination, detritus


   
Explanation of cerebrum (noun)
form plural: cerebrums

the largest part of the brain containing the two cerebral hemispheres

Sample of cerebrum
The cerebrum is responsible for controlling all voluntary activity in the body and it also directs the functioning of lower parts of the nervous system.



   
Explanation of charge (noun)
form: no plural

chracteristic of matter resposnsible for all electric phenomena; the measurement of this charactersitic

Sample of charge
The difference between the number of electrons and the number of valence elctrons of an atom is the formal charge.



   
Explanation of substitute (noun)
form plural: substitutes

something that takes the place of something else; a replacement

Sample of substitute
Vitamin pills are no substitute for a good; balanced diet.



   
Explanation of pleura (noun)
form plural: pleuras

a double membrane surrounding the lungs; the inner membrane is attached to the lungs; the outer membrane is attached to the thoracic cavity

Sample of pleura
The pleural membranes stop any friction as the lungs move.



   
Explanation of plexus (noun)
form plural: plexuses

a group of structures such as nerves or blood vessels, which are closely interposed

Sample of plexus
The brachial nerve plexus of a baby can be damaged during a difficult delivery.



   
Explanation of neurulation (noun)
form plural: neurulations

production of the embryonic neural plate and then the neural tube

Sample of neurulation
During the process of neurulation a redimentary nervous system is developed.



   
Explanation of greenhouse gases (noun)
form: only plural

gases such as carbon dioxide and methane that absorb infrared radiation which warms the atmosphere

Sample of greenhouse gases
The amount of greenhouse gases in the atmosphere is increasing because of use of fossil fuels and livestock farming.



   
Explanation of flagellum (noun)
form plural: flagella

fine long thread attached to some cells e.g. spermatozoa and certain protozoa

Sample of flagellum
Flagella help the cell move.



   
Explanation of determination (noun)
form: no plural

the process by which cells gradually commit to particular patterns of genetic activity

Sample of determination
At a certain stage some cells must undergo determination to become the eye.



   
Explanation of detritus (noun)
form plural: detritus

rubbish produced when something degrades

Sample of detritus
Bacteria decompose detritus.



  Explain the words cerebrum, charge, substitute, pleura, plexus, neurulation, greenhouse gases, flagellum, determination, detritus

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     MCAT verbal test: Learn English Vocabulary: Example of Nouns         MCAT practice test: Interactive word games: Free Online Nouns Game         MCAT Practice Test: (printable version)         Meaning of cerebrum, charge, substitute, pleura, plexus, neurulation, greenhouse gases, flagellum