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PCAT Word List # PCAT/M49

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  Word Explanations lecithin, leukemia, gastric, hydrophobic, cyto-, paralyze, progestogen, carrier-mediated active transport, cytochrome, deamination


   
Explanation of lecithin (noun)
form: no plural

phosphatidylcholine; phospholipid formed from phosphatidic acid and choline

Sample of lecithin
Lecithin is a structural component found in cell membranes.



   
Explanation of leukemia (noun)
forms plural: leukemias, singular: leukaemia or leucaemia

type of blood cancer which is characterized by rapid growth of white blood cells

Sample of leukemia
There are many types of leukemias that typically affect different age groups of the population.



   
Explanation of gastric (adjective)
relating to the stomach

Sample of gastric
He had gastric pain and was found to have a gastric ulcer.
Most patients clinically suspected of dumping or diarrhoea after having a vagotomy or gastrectomy did indeed exhibit abnormally rapid gastric emptying.



   
Explanation of hydrophobic (adjective)
forms: more hydrophobic; most hydrophobic; less hydrophobic; least hydrophobic

water-hating; unable of dissolving in water

Sample of hydrophobic
Hydrophobic interactions occur between non-polar molecules e.g. water and oil.
Hydrophobic parts of a cell membrane consisting of a bilayer with proteins are arranged at the inferior surface of the membrane.
For example, we have synthesised film physisorbable phosphorylcholine containing polymers for coating hydrophobic surfaces such as PVC, polyethylene, polypropylene, etc.



   
Explanation of cyto- (preffix)
cell

Sample of cyto-
The cytoplasm is all the cell contents apart from the nucleus.



   
Explanation of paralyze (verb)
forms: paralyzed; paralyzed; paralyzing

to stop something being able to move

Sample of paralyze
At the age of 40 he was paralyzed from the waist down.



   
Explanation of progestogen (noun)
form plural: progestogens

any steroid hormone with an action similar to female sex hormone

Sample of progestogen
Artificial progestogens are used in the contraceptive pill.



   
Explanation of carrier-mediated active transport (noun)
process in which substances are moved across a cell membrane from a region of low concentration to a region of high concentration

Sample of carrier-mediated active transport
Carrier-mediated active transport requires energy such as ATP.



   
Explanation of cytochrome (noun)
form plural: cytochromes

protein that contains iron and acts as an electron and hydrogen acceptor for cellular energy processes

Sample of cytochrome
FAD and NAD are cytochromes.
Hubel and his colleagues had studied the visual cortex of the rhesus monkey for many years without observing these cells and it was only when the cytochrome oxidase blobs had been demonstrated consistently and they started to look for receptive-field properties within them that they obtained these surprising results.



   
Explanation of deamination (noun)
form: no plural

removal of an amino group (NH2) from an organic molecule

Sample of deamination
In the liver amino acids are transformed during the process called deamination.



  Explain the words lecithin, leukemia, gastric, hydrophobic, cyto-, paralyze, progestogen, carrier-mediated active transport, cytochrome, deamination

  Preparation book: Acute Leukemias VIII: prognostic factors and Treatment

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     PCAT verbal preparation: Vocabulary Games: English Nouns Adjectives Preffixs Verbs         PCAT preparation test: Free online word games: Noun Adjective Verb Game         PCAT Testing: (printable version)         Meaning of lecithin, leukemia, gastric, hydrophobic, cyto-, paralyze, progestogen, carrier-mediated active transport