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Gre Psychology: Experimental/natural Science Biology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Having two copies of each chromosomes in most cells (except the gametes) - e.g. most mammals






2. Found in the ventricles and spinal canal






3. In the tegmentum (ventral part of midbrain); its neurons connect to caudate nucleus + putamen (in basal ganglia)






4. Holds the lens in place






5. In the posterior frontal lobe - contains the somatosensory cortex (touch - pressure - temperature - pain)






6. Occur in amacrine - bipolar and horizontal cells; govern/encompass the opponent-process level of color vision






7. Relays nerve impulses - processes sensory impulses - reflex behavior and contains nerve cell bodies






8. Is used to treat Parkinson'S Disease






9. Mechanism whereby neurons make connections to new areas to change their connectivity






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






11. Is used as an anaesthetic for children and animals but causes psychosis in adults






12. Causes mesolimbic dopamine hyperactivity; etiology of schizophrenia






13. Is characteristic of indirect antagonists






14. A single - unfertilized cell created during conception; the combined egg + sperm






15. Has a major role in metabolism - stimulation/maintenance - produces the hormones thyroxin and calcitonin






16. Part of a glial cell that wraps around the axon of a neuron - providing insulation that facilitates speed of propagation of action potential






17. Referred to as the satiety center; lesions lead to obesity and hyperphagia






18. AKA the striate cortex - located at the back of the brain - and contains the visual cortex






19. 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






20. Vision: protrusions on top of the midbrain; part of visual system






21. Is a loss of dopamine cells in the substantia nigra of the basal ganglia; these cells are usually dark (nigra) but in Parkinson'S - the substantia nigra appears white due to cell death


22. The synchronization of the menstrual or estrous cycles of a group of females - which occurs only in the presence of a pheromone in a male'S urine






23. Suggests that dreams are nothing more than the product of random electrical impulses (Hobson & McCarley)






24. Abducens Nerve - moves eye






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






26. Associated with (spoken) language reception/comprehension - memory processing - and emotional control; contains Wernicke'S area and the auditory cortex






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






28. Serotonin = 5-HT -regulation of mood - anxiety - aggression - sleep - appetite - sexuality -rostral and caudal raphe nuclei






29. Are postsynaptic potentials that are found in the dendrites and vary in their intensity






30. Governs eating/drinking (lateral and ventromedial hypothalami) and sexual activity (anterior portion






31. The visual image of the world on the retina






32. Midbrain - medulla and the pons






33. Combines input from diverse brain regions; receives sensory information/sends motor impulses






34. Absolute; relative






35. First described by Descartes - a combination of antagonistic muscle movements (e.g. those involved in walking)






36. Colored part of the eye






37. Pass the easiest through the blood-brain barrier






38. Important to motor system






39. Is found between the arachnoid mater and Pia mater; this is where CSF cushions (and bathes) the brain - giving it the floating quality (and keeping it moist/circulating)






40. Includes the tectum and tegmentum






41. Irregular electrical activity of 13-30 Hz - state of arousal - attentive






42. Associated with defensive and aggressive behavior; lesions produce docility and hypersexual states (Kluver & Bucy)






43. Attaches to a binding site on receptor and interferes with the action of the receptor without affecting the binding site for the principal ligand (noncompetitive binding)






44. Affect sex characteristics/development and produce estrogen/progesterone (in females - ovaries) and testosterone (in male - testes)






45. Facial Nerve - moves face and salivates






46. Hypoglossal Nerve - moves the tongue






47. Comprised of the hypothalamus - pituitary gland - thyroid gland - parathyroid - the adrenal cortex - the adrenal medulla - the pancreas - the ovaries/testes - pineal gland.






48. Tremors - rigidity of limbs - poor balance and difficulty initiating movements


49. Is the primary inhibitory neurotransmitter in vertebrates; these receptors are ionotropic






50. A steroid hormone produced by the ovary that maintains the endometrial lining of the uterus during the later part of the menstrual cycle and during pregnancy; along with estradiol it promotes receptivity in female mammals with estrous cycles