BIO 1361 - test 4 [final] - Fall 2010

BIO 1361 - test 4 [final] - Fall 2010 - PRINTABLE VERSION...

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PRINTABLE VERSION Test 4 You scored 93.8611111111112 out of 109 Question 1 Your answer is CORRECT. Which of the following statements about sensory receptor cells is false ? A) The type of stimulus a sensory receptor cell responds to depends on the type of membrane receptor proteins it possesses. B) Stimulation of a sensory receptor cell causes a change in its receptor potential. C) All sensory receptor cells can directly transmit action potentials to the brain. D) Sensory cells are not capable of interpreting and perceiving external stimuli. E) All are true statements. Question 2 Your answer is CORRECT. Why are we able to differentiate tastes and smells? A) The action potentials initiated by taste receptors are transmitted to a separate region of the brain than those initiated by receptors for smell. B) The sensory region of the cerebral cortex distinguishes something we taste from something we smell by the difference in the action potential. C) The brain distinguishes between taste, arising from interoreceptors, from smell arising from exteroreceptors. D) Because we are able to see what we are tasting, the brain uses this information to distinguish taste from smell. E) Taste receptors are able to detect fewer molecules of the stimulus, which means these receptors will initiate a receptor potential before smell receptors do. Question 3 Your answer is CORRECT. Which of the following pairs is not correctly matched? A) Gustation: taste buds B) Stretch receptors: possess mechanoreceptors C) Chemoreceptors: detect odors or taste D) Hearing: detection of sound involves chemoreceptors in sensory cells of the ear E) Photoreceptor: detects light Question 4 Your answer is CORRECT. Which of the following sensory pathways is correctly matched? 1) The movement of fluid through the vestibular canal and subsequent vibration of the basilar membrane causing the bending of hair cells. 2) Binding of a chemical by a sensory cell intiates a signal transduction response leading to the release of neurotransmitter. 3) Flexion of a muscle stimulates a sensory cell to form and transmit action potentials to the brain. 4) Light stimulates sensory cells in the retina causing them to not release inhibitory neurotransmitter.
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A) 1 this sensory pathway applies to taste buds B) 2 this sensory pathway applies to vision C) 3 this sensory pathway applies to stretch receptors D) 4 this sensory pathway applies to hearing E) All are correctly matched Question 5 Your answer is CORRECT. You are outside in the daylight viewing an object that is far away from your eyes. Which of the following is false concerning the response of your eyes to viewing this distant object? A) The irises will adjust to allow the appropriate amount of light to enter the eyes. B) The lens will accommodate by becoming thicker (wider) in order to bring the object into
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This note was uploaded on 01/24/2011 for the course BIOL 1361 taught by Professor Knapp during the Fall '05 term at University of Houston.

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BIO 1361 - test 4 [final] - Fall 2010 - PRINTABLE VERSION...

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