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Sense organs

Total questions: 28

Worksheet time: 14mins

Name
Class
Date
1.
Nerve impulses are carried from the eye to the brain by the
a)
optic nerve
b)
transducens nerve
c)
cornea
d)
rod and cone cells
2.

Which of the following statements about sense organs is INCORRECT?

a)

They are responsible for producing senses.

b)

They contain sensory cells.

c)

They are responsible for detecting stimuli.

d)

There are five sense organs in humans.

3.

Which of the following eye defects can be corrected by wearing suitable glasses?

(1) Astigmatism

(2) Short sight

(3) Long sight

a)

(1) and (2) only

b)

(1) and (3) only

c)

(2) and (3) only

d)

(1), (2) and (3)

4.

Which of the following correctly describes how hearing aids work?

a)

They directly stimulate the sensory cells in the cochlea.

b)

They directly send signals to the brain.

c)

They amplify the sound vibrations entering the ear.

d)

They raise the pitch of sound entering the ear.

5.

Which of the following animals can detect sound with the highest frequency?

a)

Dog

b)

Human

c)

Bird

d)

Bat

6.

Which of the following is the function of cochlea?

a)

Producing the sense of hearing

b)

Converting sound into vibrations

c)

Producing signals after detecting the vibrations from the eardrum

d)

Transmitting signals to the brain

7.

Which of the following is the cause of illusion?

a)

The brain is tired.

b)

The brain fails to work.

c)

The brain misinterprets the signals.

d)

The signals are not interpreted by the brain.

8.

Which of the following statements about reaction time is INCORRECT?

a)

It can be improved with practice.

b)

It varies among individuals.

c)

It is a continuous variation.

d)

It is the time between detecting a stimulus and producing a sense.

9.

Which of the following statements about sound is correct?

a)

Sound with higher frequency always has a higher sound level.

b)

Sound cannot travel in liquid.

c)

Sound can travel in vacuum.

d)

The pitch of sound is related to its frequency.

10.
The cells responsible for color vision in vertebrates are called
a)
rod cells
b)
cone cells
c)
bipolar cells
d)
cupula cells
11.
Rod cells and cone cells are located in the
a)
organ of Corti
b)
retina
c)
iris
d)
cornea
12.
The Eustachian tube connects the
a)
outer ear and middle ear
b)
middle ear and inner ear
c)
inner ear and throat
d)
middle ear and throat
13.
The eye contains ______.
a)
mechanoreceptors
b)
photoreceptors
c)
chemoreceptors
d)
proprioceptors
14.
The ear contains ______.
a)
mechanoreceptors
b)
photoreceptors
c)
chemoreceptors
d)
proprioceptors
15.
The iris __________.
a)
regulates light entrance through the pupil
b)
refracts light rays
c)
absorbs stray light rays
d)
contains receptors for sight
16.
The posterior cavity of the eye behind the lens is filled with a viscous material called the _________ humor.
a)
aqueous
b)
vitreous
c)
optic
d)
sensa
17.
The ear functions for ___________.
a)
balance
b)
hearing
c)
both balance and hearing
18.
The receptors for hearing and equilibrium are located in the _________ ear.
a)
inner
b)
outer
c)
middle
19.
Chewing gum, yawning, and swallowing in elevators and airplanes help to move air through the ______ tubes, which equalizes air pressure upon ascent and descent.
a)
optic
b)
tympanic
c)
cochlear
d)
eustachian 
20.
The process of hearing begins when sound waves enter the ___________.
a)
auditory canal
b)
middle ear
c)
inner ear
d)
cochlea
21.
The region on the retina that produces the sharpest vision is called the _______________.
a)
sclera
b)
aqueous humor
c)
fovea
d)
optic disc
22.

Senses that respond to chemicals in solution utilize which of the following:

a)

nerve endings

b)

chemoreceptors

c)

mechanoreceptors

d)

photoreceptors

23.
In response to intense light, the pupil: 
a)
dilates rapidly
b)
slowly dilates
c)
constricts rapidly
d)
slowly constricts
24.

Which of the following senses are most closely related:

a)

touch and smell

b)

smell and taste

c)

taste and hearing

d)

hearing and smell

25.

The nerves associated with smell are referred to as the:

a)

olfactory receptor cells

b)

smell cells

c)

gustatory receptor cells

d)

umami cells

26.

Small projections located on the tongue’s surface where taste buds are located are known as:

a)

papillae

b)

gustatory cells

c)

olfactory epithelium

d)

mucous producing glands

27.

taste receptor cells are called:

a)

taste buds

b)

taste papillae

c)

Meissner's corpuscles

d)

rods & cones

28.

About what percent of taste is smell?

a)

0%

b)

25%

c)

50%

d)

80%

e)

100%