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Gre Psychology: Experimental/natural Science Biology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. ...






2. Are direct antagonists; binds with a receptor but does not activate it - but prevents the natural ligand from binding with the receptor






3. Viscous substance between cornea and lens; transparent substance between lens and retina






4. Found in the ventricles and spinal canal






5. Abducens Nerve - moves eye






6. The viscous substance between cornea and lens






7. Increases heartrate - dilates/constricts blood vessels - increases blood sugar - produces hormones epinephrine and norepinephrine






8. Occurs intermittently during early stages of slow-wave sleep and REM sleep 3.5-7.5 Hz






9. Sudden - sharp waveforms found only in Stage II of sleep; spontaneously occur about one per minute but also to unexpected noises






10. Having two copies of each chromosomes in most cells (except the gametes) - e.g. most mammals






11. Audition: protrusions on top of midbrain; part of auditory system






12. Is generated by photoreceptors that are only sensitive to degrees of brightness; black-and-white vision found in the rods






13. Maintains balance/posture and coordinates body movements






14. Occurs for body temperature - blood glucose levels - blood concentration - etc -hormones are important






15. Symptom of narcolepsy; complete paralysis that occurs while AWAKE/conscious; will suddenly fall to floor paralyzed for a few minutes






16. Lens changes initiated by the ciliary muscles to change the shape of the lens in order to focus image on the retina






17. Part of limbic system; protrusion of the bottom of the brain at the posterior end of the hypothalamus - contains some hypothalamic nuclei






18. Auditory receptor cells in the cochlea that turn sound vibrations -> neural impulses






19. Important to motor system






20. Bunch of dopaminergic neurons starting in the ventral tegmental area and ending in the nucleus accumbens - amygdala and hippocampus






21. Readiness with which molecules/drugs/medications join together; varies widely from medication to medication






22. Begins where spinal cord ends - 3 structures: the medulla - the pons - the cerebellum






23. Most pervasive excitatory neurotransmitter in the brain






24. Also known as ABLATION - is any surgically induced brain lesion






25. Thymoleptics = relieves mania of bipolar disorder (lithium carbonate - valproic acid - carbamazepine)






26. Short bursts of waves 12-14 Hz that occur 2-5 times a minute during stages 1-4 of sleep; most characteristic of sleep Stage II; some believe sleep spindles are involved in keeping one asleep (decline in older people)






27. Causes mesolimbic dopamine hyperactivity; etiology of schizophrenia






28. Trigerminal Nerve - face sensation






29. The scientific study of animal behavior; documentation of species-specific instinctual behaviors






30. An area that combines input from diverse brain regions






31. Hormone secreted during the night by the pineal body; role in circadian and seasonal rhythms






32. An ovary or teste






33. Instead of one continuum for sex (masculine-feminine) - her work in the presence of both masculine and feminine features/development suggests these are actually two separate continuums (defeminized-feminized and unmasculinized-masculinized)

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34. Pass the easiest through the blood-brain barrier






35. Glossopharyngeal Nerve - taste swallow






36. Synchronized EEG activity during its deeper stages






37. Hormones that reduce pain






38. Symptom of narcolepsy - irresistible urge to






39. Precursor to GABA (the most inhibitory/regulatory/pervasive neurotransmitter)






40. Termination of pregnancy by the odor of a pheromone in the urine of a male other than the one that impregnated the female; first observed in mice






41. States that performance is worst at extremely low or extremely high levels of arousal and optimally at an intermediate level






42. Functions as both a hormone and a neurotransmitter in the brain






43. Oculomotor Nerve - moves eye pupil






44. Is increased in its production by training/experience and therefore - associated with memory






45. Include the Nigrostriatal system - Mesolimbic system and Mesocortical system






46. Measure changes in the electrical resistance of the skin (sweat gland activity)






47. Is found at the base of the brain - underneath the thalamus (**remember hypo-below)






48. Receive incoming sensory information or send out motor impulse commands






49. Occurs when an external stimulation - regardless of intensity - will not trigger a new action potential






50. Neurotransmitter in CNS - hormone in peripheral vascular system; deficiencies > depression - ADD; noradrenergic nuclei = locus coeruleus