MCAT practice questions with Verified Answers

A stroke patient comprehends speech but cannot move her mouth to form words. Which of the following brain areas is likely affected? ■Broca's area ■Wernicke's Area ■Arcuate fasciculus ■Superior temporal gyrus - Answer-Broca's area (Broca's area governs the motor function of language. A stroke that affects Broca's area will leave receptive language intact, but word formation will be affected. A stroke affecting Wernicke's area, choice (B), will make it so the individual is unable to comprehend speech. A stroke affecting the arcuate fasciculus, choice (C), will result in an inability to repeat words heard but spontaneous language production is intact. The superior temporal gyrus, choice (D), is where Wernicke's area is located.) Each individual in a group of teenagers is asked to estimate the height of a tree. One individual estimates the height to be 25 feet, but after discussing with the group is convinced that the height is likely closer to 40 feet. Which type of conformity is seen here? ■Obedience ■Identification ■Internalization ■Compliance - Answer-Internalization (Internalization refers to the type of conformity in which an individual changes her outward opinion to match the group and also personally agrees with those ideas.) Which of the following neurotransmitters is associated with both schizophrenia and Parkinson's disease? ■GABA ■Serotonin ■Dopamine ■Enkephalins - Answer-Dopamine (Schizophrenia is associated with high levels of dopamine, or high sensitivity to dopamine. Parkinson's disease is associated with destruction of the dopaminergic neurons in the basal ganglia.) Primary groups differ from secondary groups in that: ■A) primary groups are shorter-lived than secondary groups. ■B) primary groups are larger than secondary groups. ■C) primary groups are formed of stronger bonds than secondary groups. ■D) primary groups are assigned while secondary groups are chosen. - Answer-C (Primary groups have direct and close bonds between members, providing warm, personal, and intimate relationships to its members. Secondary groups, in contrast, form superficial bonds and tend to last for a shorter period of time.)