Ashford University Understanding the Eye 3 Parts Project

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14:43 S ★ ★ ★ ★G&AA….. $1 ✰ halo.gcu.edu/courses/BIO-201-0 Understanding the Eye Start Date & Time Apr 18, 2022, 12:00 AM 4G :D 1. Rod Cell 2. Photon 3. Rhodopsin 4. Transducin 5. CGMP 6. GMP 7. Phosphodiesterase 8. Na+ 9. Na+ Channel 10. Glutamate 78% Due Date & Time Apr 24, 2022, 11:59 PM : Assessment Description The human eye may be just an inch in diameter and weigh only an ounce, but it is one of our main organs of sensation and contains about 126 million sensory receptors. The sensory receptor for light is called a photoreceptor, which uses a second messenger cascade triggered by photons to signal to our brain that we are seeing something. The assignment is hand drawn, not an image that is obtained from the internet. Make sure each drawing is the size of an entire page. Make the drawings large enough to clearly display all of the required information. Directions: Be sure to complete all parts of this assignment. Part 1: Create a diagram of the rod photoreceptor and correctly place the following terms on your diagram: Part 2: Create a diagram that outlines the steps of phototransduction, starting from a photon of light hitting rhodopsin and ending with the change in glutamate release. Part 3: Questions X Once parts 1 and 2 are complete obtain a digital image of14:43 S ★ ★ ★ ★G&AA…. $1 4G ✰ halo.gcu.edu/courses/BIO-201-0 :D 78% 1. Rod Cell 2. Photon 3. Rhodopsin 4. Transducin 5. CGMP 6. GMP 7. Phosphodiesterase 8. Na+ 9. Na+ Channel 10. Glutamate : Assessment Description The human eye may be just an inch in diameter and weigh only an ounce, but it is one of our main organs of sensation and contains about 126 million sensory receptors. The sensory receptor for light is called a photoreceptor, which uses a second messenger cascade triggered by photons to signal to our brain that we are seeing something. X The assignment is hand drawn, not an image that is obtained from the internet. Make sure each drawing is the size of an entire page. Make the drawings large enough to clearly display all of the required information. Directions: Be sure to complete all parts of this assignment. Part 1: Create a diagram of the rod photoreceptor and correctly place the following terms on your diagram: Part 2: Create a diagram that outlines the steps of phototransduction, starting from a photon of light hitting rhodopsin and ending with the change in glutamate release. Part 3: Questions Once parts 1 and 2 are complete, obtain a digital image of your drawing and place the image into a Microsoft Word document. Following the image, complete Part 3 by correctly answering the questions. You will only submit 1 Word document. Using your textbook and drawing as a reference, answer the14:43 S ★ ★ ★ ★G&AA…. $1 halo.gcu.edu/courses/BIO-201-0 stacamat 4G :D 78% : Part 2: Create a diagram that outlines the steps of phototransduction, starting from a photon of light hitting rhodopsin and ending with the change in glutamate release. Part 3: Questions Once parts 1 and 2 are complete, obtain a digital image of your drawing and place the image into a Microsoft Word document. Following the image, complete Part 3 by correctly answering the questions. You will only submit 1 Word document. X Using your textbook and drawing as a reference, answer the following questions: 1. In the dark, is the sodium channel open or closed? 2. In the dark, is the cell depolarized or hyperpolarized? 3. Give the name and number of the cranial nerve that will carry the signal to the brain that light has hit the retina. 4. Give the name for the region of the retina that contains only cones. 5. In a highly stressful situation, which branch of the autonomic nervous system would cause pupil dilation? 6. Which muscle is responsible for pupillary dilation? 7. In which lobe of the brain does visual processing occur? 8. The term for normal vision is emmetropia. Give the name for the visual condition that leads to an inability to see things that are far away and is also known as nearsighted. 9. If a person is nearsighted is light focusing on a point in front of the retina or behind? APA style is not required, but solid academic writing is expected. 10. This medical condition is primarily caused by increased pressure in the eye, possibly resulting in nerve damage and blindness. What is its name? This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.
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Explanation & Answer:
3 Parts Project
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Part 1

Part 2

Steps
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Rhodopsin is activated by the action of light.
Activated rhodopsin catalizes a reaction that activates the alpha subunit of transducin
Alpha subunit of transducin separates from other units and moves through the membrane
Alpha subunit of transducin removes the inhibitory unit of phosphodie...


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