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MCAT Word List # MCAT/W89

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  Word Descriptions growth spurt, cation, enantiomer, proton, greenhouse gases, division, pituitary gland, ear wax, testicle, keratin


   
Description of growth spurt (noun: plural: rowth spurts)
a rapid increase in growth which occurs during adolescence

Samples of growth spurt
Children have a growth spurt around puberty.



   
Description of cation (noun: plural: cations)
positively charged ions

Samples of cation
An ion that has lost electrons is called a cation.



   
Description of enantiomer (noun: plural: enantiomers)
either one of a pair of chemical components whose molecular structures have a mirror-image relationship to each other

Samples of enantiomer
Enantiomers are chiral objects being images which are not overlayed.



   
Description of proton (noun: plural: protons)
subatomic particle with one positive charge

Samples of proton
Protons and neutrons are found in the nucleus of the atom.



   
Description of greenhouse gases (noun: only plural)
gases such as carbon dioxide and methane that absorb infrared radiation which warms the atmosphere

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



   
Description of division (noun: plural: divisions)
the splitting of the whole into parts

Samples of division
Cell division occurs during mitosis or meiosis.



   
Description of pituitary gland (noun: plural: pituitary glands)
master endocrine gland which is attached to the hypothalamus at the base of the brain

Samples of pituitary gland
The pituitary gland has an anterior and a posterior lobe and produces the hormones ACTH, LH, FSH, TSH, growth hormone, prolactin, MSH, vasopressin and oxytocin.



   
Description of ear wax (noun: no plural)
substance secreted in the outer ear canal by special glands

Samples of ear wax
The technical name for earwax is cerumen.



   
Description of testicle (noun: plural: testicles)
male sex organ found in the scrotum

Samples of testicle
The testicle consists of the testis, the vasa efferentia and epididymis.



   
Description of keratin (noun: no plural)
hard protein found in skin; hair or nails

Samples of keratin
Keratin is a tough and fibrous protein.



  Determinations of the words growth spurt, cation, enantiomer, proton, greenhouse gases, division, pituitary gland, ear wax, testicle, keratin

  Preparation book: Genetics and Cancer Susceptibility: Implications for Risk Assessment

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     MCAT test: Vocabulary Words: English Nouns         MCAT test: Word games: Free Online Noun Quiz         MCAT Vocabulary: (printable version)         Definition of growth spurt, cation, enantiomer, proton, greenhouse gases, division, pituitary gland