WorksheetsExam 4 Quiz D
Total questions: 20
Worksheet time: 3600secs
Name
Class
Date
1.
Which part of the eye contains photoreceptors?
a)
Iris
b)
Cornea
c)
Retina
d)
Sclera
2.
What is the function of the lens?
a)
Produce tears
b)
Focus light on the retina
c)
Control pupil size
d)
Protect the eye
3.
Which part of the retina has the highest density of cone cells?
a)
Macula
b)
Fovea
c)
Optic disc
d)
Choroid
4.
What type of lens corrects myopia?
a)
Convex
b)
Concave
c)
Flat
d)
Prismatic
5.
Which photoreceptor is responsible for color vision?
a)
Cones
b)
Rods
c)
Bipolar cells
d)
Ganglion cells
6.
Which pigment is found in rod cells?
a)
Opsin
b)
Rhodopsin
c)
Melanin
d)
Retinal
7.
Which condition is caused by uneven curvature of the cornea or lens?
a)
Myopia
b)
Hyperopia
c)
Presbyopia
d)
Astigmatism
8.
Which photoreceptor functions best in low light?
a)
Cones
b)
Rods
c)
Ganglion cells
d)
Bipolar cells
9.
Which structure transmits sound vibrations to the cochlea?
a)
Tympanic membrane
b)
Stapes
c)
Incus
d)
Auricle
10.
Which part of the ear detects angular acceleration?
a)
Cochlea
b)
Utricle
c)
Semicircular canals
d)
Saccule
11.
What happens when stereocilia bend toward the kinocilium?
a)
Ion channels close
b)
Depolarization occurs
c)
Hyperpolarization occurs
d)
No change
12.
What are otoliths?
a)
Photopigments in rods
b)
Calcium crystals in inner ear
c)
Taste buds on tongue
d)
Neurotransmitters in cochlea
13.
Which structure contains olfactory sensory neurons?
a)
Conjunctiva
b)
Olfactory epithelium
c)
Tympanic membrane
d)
Retina
14.
Which brain region is involved in emotional response to smell?
a)
Cerebellum
b)
Thalamus
c)
Amygdala
d)
Pons
15.
Which papillae do NOT contain taste buds?
a)
Fungiform
b)
Foliate
c)
Filiform
d)
Circumvallate
16.
Which ion is responsible for salty taste transduction?
a)
H+
b)
Na+
c)
Ca2+
d)
K+
17.
Which taste involves blocking K+ channels with H+ ions?
a)
Sweet
b)
Sour
c)
Bitter
d)
Umami
18.
Which G protein is involved in sweet taste transduction?
a)
Transducin
b)
Gustducin
c)
Opsin
d)
Retinal
19.
Which taste receptor pathway uses IP3 to release Ca2+?
a)
Sour
b)
Sweet
c)
Bitter
d)
Salty
20.
Which neurotransmitter is released by hair cells in the cochlea?
a)
Acetylcholine
b)
Glutamate
c)
Dopamine
d)
GABA
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