MCAT Sample Test # MCAT/M77

n. brain
(a) bundle of muscle fibers
(b) major organ of the central nervous system, controlling all bodily activities
(c) the movement of semen out of the penis by contractile waves which occur at orgasm
(d) lactation gland found on the chest wall; mammary gland
 
n. systolic pressure
(a) this is the number that shows how heavy an atom of that element is compared to another element
(b) the chest cavity
(c) uncharged particle found in the nucleus of the atom
(d) the blood pressure during systole
 
n. refractory period
(a) period following an action potential during which the occurance of another action potential is impossible or requires stronger stimulation
(b) removal of a small piece of tissue from the body so it can be examined under the microscope
(c) a scraped area on the skin
(d) all the members of one species that live in an area
 
n. beriberi
(a) a disease antigen that stimulates the body to produce an antibody reaction but is not strong enough to produce the disease's harmful effects
(b) one or more orbitals in the electron shell of an atom
(c) an unstable; reactive gas which has oxidative properties
(d) illness due to thiamine deficiency
 
n. glycolipids
(a) sugar we add to food to sweeten it
(b) proteins joined with carbohydrates that are found on the surface of cells
(c) death
(d) the muscles that allow the eyeball to rotate

n. venule
(a) loss of vision
(b) a small vein
(c) the back of the body
(d) disease of pancreas due to lack of insulin
 
n. addition reaction
(a) process in which two molecules join to form a single compound
(b) compound containing glycerol and fatty acids which is important as a fuel and for energy storage
(c) enlargement of the thyroid gland not being caused by cancer
(d) chracteristic of matter resposnsible for all electric phenomena; the measurement of this charactersitic
 
n. heart
(a) characteristic of a molecule being unable to superimpose it on its mirror image
(b) a cone-shaped, muscular organ lying in the mediastinum between the lungs
(c) period following an action potential during which the occurance of another action potential is impossible or requires stronger stimulation
(d) digit on the hand besides the thumb
 
v. invoke
(a) to secrete milk
(b) to apply to; to advocate
(c) adapt to changes in the environment
(d) to grow again; to reform after injury
 
n. bronchus
(a) cells around stomata in the leaf
(b) trend; development; route
(c) air tube connecting trachea ('windpipe') and lungs
(d) nodule of cartilage in the outer ear