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BIOL 2457 FINAL EXAM REVIEW
POLLOCK UTA 2026 ACTUAL
QUESTIONS WITH VERIFIED ANSWERS.
Lens Accommodation & Pupil Control - correct answer-
Accommodation: bending of light; process of lens changing
shape
Lens: far=concave, close=convex
Cornea: bends light
Photoreceptor Cells
Rods & Cones - correct answer-*Rods: blk and white vision
sensitive to light
low acuity
*Cones: color vision, 3 RBG
bright light
high acuity
Fovea - correct answer--Where best vision is
-Most photoreceptors (cones) are here
-Lil gap to strike directly
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Gustatory Receptor Cells Steps: Sweet, bitter, umami - correct
answer-1.) Tastant binds G protein-coupled channel
2.) IP3 binds & opens TRP5 channels
3.) Depolarization
4.) Voltage-gated Ca+ channels open
5.) IP3 binds to ER and opens Ca+ channels
6.) Neurotransmitters released
External ear - correct answer-collects sound waves, channels
inwards
Middle ear - correct answer-coveys sound vibrations to the
stapes and oval window
Inner ear - correct answer-houses auditory & equilibrium
receptors
Bony Labryinth - correct answer-vestibule, semicircular canals,
cochlea
BIOL 2457 FINAL EXAM REVIEW
POLLOCK UTA 2026 ACTUAL
QUESTIONS WITH VERIFIED ANSWERS.
Lens Accommodation & Pupil Control - correct answer-
Accommodation: bending of light; process of lens changing
shape
Lens: far=concave, close=convex
Cornea: bends light
Photoreceptor Cells
Rods & Cones - correct answer-*Rods: blk and white vision
sensitive to light
low acuity
*Cones: color vision, 3 RBG
bright light
high acuity
Fovea - correct answer--Where best vision is
-Most photoreceptors (cones) are here
-Lil gap to strike directly
, Page | 2
Gustatory Receptor Cells Steps: Sweet, bitter, umami - correct
answer-1.) Tastant binds G protein-coupled channel
2.) IP3 binds & opens TRP5 channels
3.) Depolarization
4.) Voltage-gated Ca+ channels open
5.) IP3 binds to ER and opens Ca+ channels
6.) Neurotransmitters released
External ear - correct answer-collects sound waves, channels
inwards
Middle ear - correct answer-coveys sound vibrations to the
stapes and oval window
Inner ear - correct answer-houses auditory & equilibrium
receptors
Bony Labryinth - correct answer-vestibule, semicircular canals,
cochlea
