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MCAT Word List # MCAT/M90

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Explanation of centriole (noun)
form plural: entrioles

a structure found in the cell cytoplasm that plays a role in cell division

Sample of centriole
The centriole forms asters during cell division.



   
Explanation of fiber (noun)
form plural: fibers

indigestible cellulose in our food; roughage

Sample of fiber
It is vital to eat enough fiber in the diet.



   
Explanation of variation (noun)
form plural: variations

something that is different from a group; different from what is normal

Sample of variation
There is diurnal variation in blood pressure and temperature.



   
Explanation of embryology (noun)
form: no plural

the study of how the embryo develops in the uterus

Sample of embryology
Embryology helps us understand the anatomy of the body.



   
Explanation of transpiration (noun)
form: no plural

the loss of water from plants through the stomata

Sample of transpiration
Transpiration takes place at the leaves.



   
Explanation of hemiacetal (noun)
form: no plural

molecule containing an alkyl group

Sample of hemiacetal
When an equivalent of alcohol is added to an aldehyde or ketone, the product is hemiacetal.



   
Explanation of symptomatic (adjective)
having symptoms

Sample of symptomatic
We should treat the patient if he is symptomatic.



   
Explanation of organelle (noun)
form plural: organelles

specialized structure which performs particular functions within a cell

Sample of organelle
The nucleus is an example of an organelle.



   
Explanation of hierarchy (noun)
form plural: hierarchies

a ranking system of organisation

Sample of hierarchy
In the hierarchy of life at the bottom are single-celled organisms and at the top are complex organisms such as man.



   
Explanation of beta pleated sheet (noun)
form plural: beta pleated sheets

secondary structure of a protein where the polypeptide chain forms a zigzag shape

Sample of beta pleated sheet
Fibrous proteins contain a beta-pleated sheet.

Medical term beta pleated sheet
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