Question 1

Rods and cones are found in the _______.
A)retina
B)iris
C)optic nerve
D)cornea

Accepted Answer

Rods and cones are photoreceptor cells that are found in the retina, the innermost layer of the eye. The retina is responsible for converting light into electric signals that are sent to the brain via the optic nerve for visual processing. The iris is the colored part of the eye that regulates the amount of light that enters the eye through the pupil. The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber.

Question 2

The depressed spot in the retina which occupies the center of the visual field in which images are focused MOST sharply is called the _______.
A)fovea
B)cornea
C)iris
D)optic nerve

Accepted Answer

The depressed spot in the retina which occupies the center of the visual field in which images are focused MOST sharply is called the fovea. The cornea is the transparent outer layer at the front of the eye, the iris is the colored part of the eye that controls the size of the pupil, and the optic nerve carries visual information from the eye to the brain.

Question 3

Lory entered a dark movie theater from the bright sunlight.Which of the following was occurring in her retinal system?
A)a slow shift from cone vision to rod vision
B)a rapid shift from cone vision to rod vision
C)a slow shift from rod vision to cone vision
D)a rapid shift from rod vision to cone vision

Accepted Answer

The answer of Lory entered a dark movie theater from...

Question 4

Window pane is to _______ as color is to iris.
A)retina
B)cornea
C)lens
D)fovea

Accepted Answer

Window pane is a part of the structure of a window, similarly, the retina is part of the structure of the eye. The color is a characteristic of the iris, which is a part of the retina that helps regulate the amount of light entering the eye.

Question 5

When people are nearsighted,this most likely means that their eye:
A)focuses light behind the retina.
B)focuses light on the blindspot.
C)focuses light in front of the retina.
D)has shifted the near point of accommodation due to distortion of the lens.

Accepted Answer

Nearsightedness, also known as myopia, is a refractive error of the eye in which the eye focuses light in front of the retina, rather than on the retina. This results in blurry vision when looking at distant objects.

Question 6

Light enters the eye through the _______.
A)cornea
B)pupil
C)iris
D)retina

Accepted Answer

Light first enters the eye through the transparent outer covering called the cornea. Then, it passes through the opening in the center of the iris called the pupil. The iris regulates the amount of light that enters the eye by changing the size of the pupil. Therefore, both choices A and B are correct.

Question 7

Billy acted out in class and made poor grades.After a vision screening at the school,Billy's teacher moved him to the front of the class.Billy's academic and social behaviors improved.Billy probably has which vision problem?
A)astigmatism
B)farsightedness
C)nearsightedness
D)visual occlusion

Accepted Answer

Billy likely has nearsightedness, which makes it difficult for him to see objects that are far away, such as the chalkboard. Moving him to the front of the class would allow him to see the board more clearly and improve his academic performance. The improvement in his social behavior may also be due to increased confidence and engagement in the classroom.

Question 8

Rods and cones are connected to ________.
A)optic neurons
B)bipolar neurons
C)interneurons
D)efferent neurons

Accepted Answer

Rods and cones are connected to bipolar neurons, which then connect to the optic neurons. These three types of neurons work together to transmit visual information from the eyes to the brain.

Question 9

The white,opaque outer wall of the eye is called the _________.
A)cornea
B)pupil
C)sclera
D)iris

Accepted Answer

The sclera is the white, opaque outer wall of the eye. The cornea is the clear outer layer that covers the iris and pupil. The iris is the colored part of the eye that controls the size of the pupil. The pupil is the opening in the center of the iris that allows light to enter the eye.

Question 10

________ are receptors that are best for seeing details.
A)Cones
B)Rods
C)Bipolar cells
D)Ganglion cells

Accepted Answer

Cones are responsible for detecting color and fine details in well-lit conditions, while rods are more sensitive to low levels of light but do not provide detailed vision. Bipolar cells and ganglion cells are part of the neural pathway that transmits visual information to the brain, but they are not directly involved in detecting details.

Question 11

Which type of receptor cell is associated with seeing colors?
A)ganglia
B)bipolar
C)rods
D)cones

Accepted Answer

Cones are the receptor cells in the eyes that are responsible for seeing colors.

Question 12

When the eye becomes elongated,people see near objects well,but see far objects poorly.This is what is called _______.
A)farsightedness
B)nearsightedness
C)astigmatism
D)accommodation

Accepted Answer

When the eye becomes elongated, it causes light to focus in front of the retina instead of on it, resulting in near objects being seen clearly but far objects appearing blurry. This is known as nearsightedness or myopia. Farsightedness, or hyperopia, is the opposite condition where the eye is too short and causes far objects to be seen clearly but near objects to appear blurry. Astigmatism and accommodation are related to other aspects of vision and do not relate to elongation of the eye.

Question 13

In nearsightedness,the image is focused:
A)on the retina.
B)behind the retina.
C)in front of the retina.
D)on the fovea.

Accepted Answer

In nearsightedness (myopia), the image is focused in front of the retina, causing distant objects to appear blurry while close objects can be seen clearly.

Question 14

For humans,the ability to _______ is probably the most important sense.
A)hear
B)taste
C)see
D)smell

Accepted Answer

While all the senses are important, the ability to see allows humans to navigate their environment, recognize faces and objects, interpret expressions and body language, and read and write. Vision plays a crucial role in daily life and is often relied upon more heavily than the other senses.

Question 15

The inner lining on the back of the eyeball which is sensitive to light is called the _______.
A)fovea
B)retina
C)iris
D)optic nerve

Accepted Answer

The inner lining on the back of the eyeball which is sensitive to light is called the retina. The fovea is a small area in the center of the retina responsible for sharp central vision, the iris is the colored part of the eye that controls the size of the pupil, and the optic nerve is responsible for transmitting visual information from the retina to the brain.

Question 16

The eyes convert light energy into neural responses that we experience as sight.The conversion of light energy into sight is done by receptor cells in the _______.
A)iris
B)pupil
C)blind spot
D)retina

Accepted Answer

The receptor cells responsible for converting light energy into neural responses that we experience as sight are located in the retina. The iris is responsible for controlling the amount of light that enters the eye by changing the size of the pupil. The pupil is the opening through which light enters the eye. The blind spot is an area in the retina where there are no receptor cells, so it cannot detect light.

Question 17

The most common cause of blindness is which of the following?
A)glaucoma
B)cataracts
C)astigmatism
D)retinitis

Accepted Answer

The answer of The most common cause of blindness is...

Question 18

Light is focused on the retina by the _______.
A)cornea
B)pupil
C)iris
D)lens

Accepted Answer

The lens is responsible for focusing light onto the retina. The cornea and iris merely help to direct light towards the lens, while the pupil regulates the amount of light that enters the eye.

Question 19

The shape of the lens adjusts in order to _______.
A)protect the eye from too much light
B)let in more light when it is dark
C)focus on different objects at different distances
D)allow time for the eye to adjust to bright light

Accepted Answer

The shape of the lens adjusts in order to focus on different objects at different distances. This process is called accommodation and allows the eye to adjust to different distances and maintain clear vision.

Question 20

The lens:
A)is the transparent outer membrane of the eye that covers the pupil and iris.
B)allows one to focus on objects at different distances.
C)allows light initially to enter the eye.
D)controls the amount of light entering the eye.

Accepted Answer

The lens of the eye allows one to focus on objects at different distances. It changes shape to adjust the path of light rays entering the eye, which helps form a clear image on the retina.

Quiz 3: Sensation and Perception

Rods and cones are found in the _______.

The depressed spot in the retina which occupies the center of the visual field in which images are focused MOST sharply is called the _______.

Lory entered a dark movie theater from the bright sunlight.Which of the following was occurring in her retinal system?

Window pane is to _______ as color is to iris.

When people are nearsighted,this most likely means that their eye:

Light enters the eye through the _______.

Billy acted out in class and made poor grades.After a vision screening at the school,Billy's teacher moved him to the front of the class.Billy's academic and social behaviors improved.Billy probably has which vision problem?

Rods and cones are connected to ________.

The white,opaque outer wall of the eye is called the _________.

________ are receptors that are best for seeing details.

Which type of receptor cell is associated with seeing colors?

When the eye becomes elongated,people see near objects well,but see far objects poorly.This is what is called _______.

In nearsightedness,the image is focused:

For humans,the ability to _______ is probably the most important sense.

The inner lining on the back of the eyeball which is sensitive to light is called the _______.

The eyes convert light energy into neural responses that we experience as sight.The conversion of light energy into sight is done by receptor cells in the _______.

The most common cause of blindness is which of the following?

Light is focused on the retina by the _______.

The shape of the lens adjusts in order to _______.

The lens: