Psychobiology MCQ
1. In comparison to activating effects, organizing effects of hormones take place ____.
Answer
Correct Answer:
Earlier in life and produce more long-lasting effects
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2. The capacity of stress to ________ would predispose an organism to develop an infectious illness.
Answer
Correct Answer:
Inhibit the immune system
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3. One way that estrogen increases sexual responsiveness is by ____.
Answer
Correct Answer:
Synchronizing activity between the hypothalamus of the left and right
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4. ____ steer new axonal branches and synapses in the right direction.
Answer
Correct Answer:
Neurotrophins
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5. Autoreceptors monitor the ____.
Answer
Correct Answer:
Amount of neurotransmitter released
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6. After cells have differentiated as neurons or glia, they ____.
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7. The human brain starts to resemble a _____________ by the 28th day of embryonic development.
Answer
Correct Answer:
Hollow tube
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8. The ________ plays a key role in the extinction of drug responding.
Answer
Correct Answer:
Ventromedial prefrontal cortex (vmPFC)
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9. Humans exposed to the stress of ________ show evidence of brain degeneration in ct scans.
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10. Deep brain stimulation of the ________ can alleviate the symptoms of parkinson's disease.
Answer
Correct Answer:
Subthalamic nucleus.
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11. More cases of child abuse are perpetrated by _____________ than any other group.
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12. Olfactory information is coded in receptor cells through ____.
Answer
Correct Answer:
hundreds of types of receptor molecules, each responsive to a different chemical
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13. _______ is a sound quality whereby a sound is heard to be of higher or lower pitch.
Answer
Correct Answer:
Tone height
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14. A melody is defined by the _______, rather than by an exact sequence of sound frequencies.
Answer
Correct Answer:
Pattern of rises and falls in pitch
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15. For an association claim, you should interrogate all of the following validities except __________.
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16. A study finds a correlation coefficient of r = .32 and reports p < .05. the p is a/an ________.
Answer
Correct Answer:
Probability estimate
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17. Empowerment and egalitarianism are the basis of the ________ therapeutic relationship.
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18. A tonotopic map refers to a(n) ____.
Answer
Correct Answer:
Auditory cortex map of sounds
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19. A symptom of right-hemisphere parietal lobe damage is the tendency to ignore the ____.
Answer
Correct Answer:
Left side of the body
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20. A person who sees spoken language or music may be experiencing ____.
Answer
Correct Answer:
Synesthesia
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21. A neuron excretes neurotransmitters through its membrane by a process called ____.
Answer
Correct Answer:
Exocytosis
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22. In castrated male rats, the medial preoptic area ____.
Answer
Correct Answer:
has as much dopamine as normal rats, but the presence of a receptive female does not evoke much release of it
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23. Sherrington inferred the presence of a gap between neurons based on ________ .
Answer
Correct Answer:
Slower than predicted speed of conduction
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24. The major disadvantage of a blood-brain barrier is that ____.
Answer
Correct Answer:
Certain required chemicals must be actively transported
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25. Areas bordering the primary auditory cortex are important for ____.
Answer
Correct Answer:
Analyzing the meaning of sounds
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26. Sigmund freud is responsible for revolutionary ideas and the __________ theory.
Answer
Correct Answer:
Psychoanalytic
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27. Ischemia is to ____ as hemorrhage is to ____.
Answer
Correct Answer:
Obstruction; rupture
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28. In development, neurotrophins ____. during adulthood, they ____.
Answer
Correct Answer:
Preserve neurons; increase neuronal branching
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29. The relationship between behavior and biology is ____.
Answer
Correct Answer:
Reciprocal: biology affects behavior and vice versa
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30. The membrane of a neuron is composed of ____ with ____ embedded in them.
Answer
Correct Answer:
Fat molecules; proteins
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31. Protein channels allow ____ molecules to cross the cell membrane.
Answer
Correct Answer:
Small charged
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32. Neurons typically have one ____, but many ____.
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Correct Answer:
Axon; dendrites
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33. The brain gets part of its information regarding low osmotic pressure from ____.
Answer
Correct Answer:
Receptors around the third ventricle
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34. According to erik erikson, personality develops _____.
Answer
Correct Answer:
Over the entire life span
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35. In the nervous system, the job of the axons is to ________ other neurons.
Answer
Correct Answer:
Transmit action potentials to
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36. A phenotype can consist of _____ as well as _____ characteristics.
Answer
Correct Answer:
Physical; psychological
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37. A human egg contains ________ chromosome and a human sperm contains ________ chromosome.
Answer
Correct Answer:
An X; either an X or a Y
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38. A ______ will always be expressed in the observable trait.
Answer
Correct Answer:
Dominant gene
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39. _____ refers to the process of gathering information about the world through our senses.
Answer
Correct Answer:
Perception.
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40. The endocrine system responds to input from the nervous system, particularly from the ____.
Answer
Correct Answer:
Hypothalamus
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41. The endocrine system is directly involved with ____.
Answer
Correct Answer:
arousal, metabolism, growth and sex
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42. The rods of the retina are the main receptors of the _______ visual system.
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43. The fight-or-flight response is to ________ as the general adaptation syndrome is to ________.
Answer
Correct Answer:
Walter Cannon; Hans Selye
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44. The difference between neurons in the pns and neurons in the cns is that _____.
Answer
Correct Answer:
Neurons in the PNS can regenerate
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45. The release of cortisol during the fight-or-flight response occurs at the end of the _____ pathway.
Answer
Correct Answer:
Pituitary, Adrenal cortex, Hypothalamus
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46. As compared to dendrites, axons usually ____.
Answer
Correct Answer:
Are covered with myelin
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47. The secretion of pyy _____ hunger and the secretion of orexin _____ hunger.
Answer
Correct Answer:
Decreases; increases
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48. Stimulation of the pontomesencephalon ____.
Answer
Correct Answer:
Awakens a sleeping individual
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49. Somatic is to autonomic what _____ is to _____.
Answer
Correct Answer:
Voluntary; involuntary
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50. Müllerian ducts are found in ____.
Answer
Correct Answer:
Female and male fetuses early in development
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51. Active transport of molecules across membranes requires atp because __________.
Answer
Correct Answer:
The molecules are moved against the concentration gradient (uphill)
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52. A dopamine pill is ineffective for treating parkinson's disease because it ____.
Answer
Correct Answer:
does not cross the blood-brain barrier
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53. A cross section of the spinal cord indicates that gray matter is ____.
Answer
Correct Answer:
Densely packed with cell bodies and dendrites
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Biology MCQs | Topic-wise