blindness can result from the loss of specific types of cones, or it can occur in individuals having fewer cones of a given type. An individual has 50% less than the normal number of green cone photoreceptors in his or her retina. How would this affect his or her vision?

Q: Input to the human visual cortex comes from cones and rods (by way of ganglion cells) in what…

A: The visual cortex of the brain is the part of the cerebral cortex located in the occipital lobe that…

Q: Which of these photoreceptor cells do not match their function? a) rods - night vision b) stavar -…

A: Receptors are the substances that receive some signal or a molecule to facilitate detection.…

Q: The human eye focuses bya. changing the thickness of the lens.b. changing the shape of the lens.c.…

A: Sense organs are specialized organs that allow the human body to perceive sight, smell, sound,…

Q: My cat Mia has poor color vision, but can see very well in dark environments. What characteristic of…

A: The eye is the photosensitive organ in the body that contain photosensitive layer known as retina.…

Q: Explain why deficiency of vitamin A causes poor night vision or night blindness.

A: Night blindness: It is an impairment of vision. It is also known as nyctalopia. During the dim…

Q: Why is it easier to see images at night using peripheral, rather than the central, vision? a. Cones…

A: It is easier to see images at night using peripheral rather than central vision because at the edges…

Q: The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the(a)…

A: Eye is the chief organ of the visual system. In most mammals they are paired structures and are oval…

Q: Cone pigments detect different wavelengths of light due toa. their location in the retina.b. the…

A: Answer is a.)  their location in the retina.

Q: The is the region of the eye that controls the amount of light that enters.a. cornea b. pupil c.…

A: Eye is an organ responsible for sight/ vision. There are many structures which works together to…

Q: Some women who have had male children who display color blindness have been demonstrated to…

A: Color blindness is a genetic disorder which are expressed in males while females are the carrier. It…

Q: Include a 5-10 sentence explanation of how the sheep’s eye senses light and relays that data to the…

A: Eyes are complex sense organs. they gather information from the environmental stimulus, and the…

Q: The highest density of cone cells is found in: a. the crista ampullaris. b. the optic disc. c. the…

A: The highest density of cone cells is found in:

Q: Visual acuity is greatest when a ganglion cell has ____________________(many or few) photoreceptors…

A: Visual acuity Visual acuity means the ability of your eyes to recognise the shapes and details of…

Q: Describe the role of photoreceptors in vision.

A: Photoreceptors are the cells in the retina that react to light. Their distinctive element is the…

Q: Which of the following best describes the function of a camera type eye?     A) To form…

A: Ans- B.  To gather and concentrate light through a lens onto retinal tissue which generates an…

Q: Explain why different types of receptor cells and neural circuits are required for day and night…

A: Rods and cones are the two kinds of photo-receptors in the retina of humans. The rods are…

Q: In the diagram above, identify the part of the brain that is suppressed during blinking and the part…

A: The brain is the most complex organ of any organism. It controls the different processes going on in…

Q: The computational level of analysis in Marr's theory might be concerned with   A the specific…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is C ( the problem of how the visual system…

Q: What makes the blind spot of the retina blind? a. It is at a location where the lens cannot focus…

A: Retina is the thin layer of neural tissue at the back of the eye and it is composed of…

Q: We have three types of cones in the retina. Explain how we can see a large range of colors with only…

A: Cone cells are the photo receptors found in the retina of the eye which are meant for color vision…

Q: Which of the following is TRUE about cone cells?    a. The three types of cones that humans have…

A: option a. is FALSE explanation :The three types of cones that humans have are called S-cones,…

Q: What is the relationship between sensation and perception: a. Sensation cannot happen on cold…

A: Both perception & sensation are interlinked.  Sensation is carried out when stimulus is given to…

Q: . Explain how mutations in the photoreceptor genesresult in different vision defects.

A: The human eye is a sensory organ that gives a sense of vision. Cells present in eyes convert light…

Q: Given that frogs are nearsighted in air, which statement is most likely to be true about their…

A: Frogs are amphibians and are adapted to live in both land and water habitats. Frog's vision is…

Q: Explain fully how light is detected by your eye and the signal sent to your brain. Be sure to…

A: Vision is one of the basic senses of animals. Eyes are the organs in the head region that receive…

Q: Which one of the following statements about photoreception is true? a. Light detection is initiated…

A: Photoreception is the mechanism of detection of light which leads to vision when there is…

Q: color blindness can result from the loss of specific types of cons or it can occur in individuals…

A: On the human retina, there are photoreceptor cells which has rods and cons. Rods attributes the…

Q: The change in focal length of an eye lens is caused by the action of the:(a) Pupil(b) Retina(c)…

A: Contraction or relaxation of muscles in an eye is responsible for focusing the object, phenomenon…

Q: Why is a retinal defect, such as retinitis pigmentosa, which causes tunnel vision, associated with…

A: Night blindness  Night blindness is the condition of eye in which a person is unable to get clear…

Q: Which of the following best explains afterimages? a. trichromatic theory b. opponent-process theory…

A: After the image is the image that occurs continuously after the disappearance of original images.…

Q: Which of the following is a false statement about photoreceptors of the eye? A) Cones are active at…

A: Human retina contain two type of photoreceptor cells rod cells and cone cells. Rod cells are rod…

Q: Most animals lack cones in their retinas.  How, then, do such animals view the visual world?

A: Usually light passes through multiple layers of cells in the retina before striking the…

Q: Which of the following limits the potential of an individual neuron to encode the frequency of a…

A: Option A

Q: Rhodopsin contains: opsin and retinal vitamin A and ATP red, blue and green pigments light waves The…

A:

Q: Why do people over 55 often need reading glasses? a. Their cornea no longer focuses correctly. b.…

A: When people reach around the age of 55, they experience blurred vision while reading or working.…

Q: When a person blinks, the part of the brain that interprets visual stimulation is suppressed. The…

A: Blinking is a very normal reflex, which happen only when the eye is dry, in bright light and when…

Q: What are the 3 ways in which complex ganglion cells differ from simple ganglion cells (Select all…

A: Ganglion cells are the vertebrate retina's final output neurons. Bipolar cells and amacrine cells…

Q: Cataracts, the medical condition where the lens of the eye becomes cloudy, are a leading cause of…

A: Cataract: a. Cataract is the leading cause of blindness in both developed and developing countries.…

Q: The order in which the cells in the eye process light is __________. A) photoreceptors; ganglion…

A: The retina contains photoreceptor cells that convert light signals into sensory nerve impulses. The…

Q: When transitioning from a pitch black room, to a sunny room where there is a lot of light, what…

A: The rods and cones are the photoreceptor cells. rods contain a photosensitive pigment known as…