BIO 240 Klesath Exam 3 Lecture Review
Quiz Questions
the hair cell containing receptor regions found in the semicircle canals are called
_______. these function to detect ______
a. maculae; static equilibrium
b. crista ampullaris; linear acceleration
c. maculae; angular acceleration
d. crista ampullaris; angular acceleration
e. crista ampullaris; static acceleration
f. maculae; linear acceleration - ANS-d. crista ampullaris; angular acceleration
the membranous labyrinth is filled with _____
a. air
b. endolymph
c. perilymph
d. blood - ANS-b. endolymph
what is the correct order though which sound travels into the inner ear and through the
cochlea
1. endolymph of cochlear ducts
2. oval window
3. perilymph of scala tympani
4. perilymph of scala vestibule
5. round window
a. 2,4,1,3,5
b. 1,3,2,4,5
c. 5,3,1,4,2
d. 2,3,4,1,5
e. 4,2,1,3,5
f. 3,2,4,5,1
g. 5,4,1,3,5 - ANS-a. 2,4,1,3,5
the contraction and relaxation of muscles found within the _____ change the size of the
pupil
, a. ciliary body
b. iris
c. choroid
d. lens - ANS-b. iris
in the retina, the bleaching reaction occurs as _____
a. atp is used to convert trans-retinal to cis-retinal
b. trans-retinal dissociates from opsin
c. cis-retinal and trans-retinal combine to form opsin
d. cis-retinal and opsin associated to form rhodopsin - ANS-b. trans-retinal dissociates
from opsin
in the light, photoreceptors _____ resulting in a _____ of the bipolar cells
a. depolarize; depolarization
b. hyper polarize; hyperpolarization
c. hyper polarize; depolarization
d. depolarize; hyperpolarization - ANS-c. hyper polarize; depolarization
a skeletal muscle's motor end plate region contains a high concentration of _____. an
end plate potential occurs when this region _____
a. voltage gated channels; hyperpolarization
b. chemically gated channels; depolarization
c. voltage gated channels; depolarization
d. chemically gated channels; hyperpolarization - ANS-b. chemically gated channels;
depolarization
the triad of skeletal muscle fiber contains _____
a. a cluster of three t-tubule openings on the sarcolemma
b. a cluster of three motor end plates on a single muscle fiber
c. a group of three sections of the sarcoplasmic reticulum on a single myofibril
d. a central t-tubule flanked on both sides by terminal cistern of the sarcoplasmic
reticulum
e. a central terminal cisterns of the sarcoplasmic reticulum on both sides by t-tubules
f. three myofibrils surrounded by adjoining t-tubules - ANS-d. a central t-tubule flanked
on both sides by terminal cistern of the sarcoplasmic reticulum
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