MCAT Sample Test # MCAT/M55

n. icterus
(a) fatty acid that is not fully saturated with hydrogen atoms because of the presence of double carbo-carbon bonds
(b) yellow color of the skin due to high levels of bilirubin in the blood
(c) a plant that has two cotyledons (seed leaves)
(d) the process of fermentation brought about by yeast
 
n. cleavage
(a) subatomic particle with one positive charge
(b) solvent which is a ketone
(c) series of fast mitotic divisions in embryology
(d) amount of times a particular phenomenon occurs within a specified interval
 
n. carbon monoxide (CO)
(a) transformation of a keto to an enol form
(b) a poisonous gas
(c) -COOH group
(d) a sexually transmitted disease
 
n. vagina
(a) gaps that occurs between neighboring Schwann cells in the myelin sheath of nerve fibers
(b) the birth canal; extends from the cervix to the vulva
(c) major organ of the central nervous system, controlling all bodily activities
(d) carbohydrate which can be found in potatoes, rice, bread and other foods
 
n. control
(a) the sequence of amino acids in a protein
(b) the process that maintains balance or equilibrium of an organism's internal environment
(c) the difference in potential between the inside and the outside of a cell
(d) used as a basis for comparison in scientific experiments

n. substituent
(a) atom, radical, or group replaced for another in a chemical molecule
(b) the process by which monomers are joined by covalent bonds
(c) finger-like projection from a surface of a membrane
(d) reproduction by one organism
 
n. by-product
(a) a secondary substance made in the process of creating a primary one
(b) an amino acid
(c) treatment with a halogen
(d) information about something
 
n. enantiomers
(a) the relationship between the amount of nitrogen taken in and excreted by the body
(b) medical condition of long sightedness
(c) fleshy part of the face on either side of the nose
(d) molecules that are mirror images of each other
 
n. esophagus
(a) a strong reason for believing a particular action needs to be taken
(b) bonds held between ions in an ionic compound
(c) inability to sleep
(d) epithelium-lined part of the gut that connects the pharynx to the stomach
 
n. ejaculation
(a) a disorder of the motor neurons
(b) a surgical operation where the womb is removed
(c) protein found in animal tissues and fluids
(d) the movement of semen out of the penis by contractile waves which occur at orgasm