Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 38, Problem 10TYU
FOCUS ON ORGANIZATION
In a short essay (100-150 words), describe three ways in which the structure of the lens of the human eye is well adapted to its function in vision.
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In a short essay (100–150 words), describe three ways in which the structure of the lens of the human eye is well adapted to its function in vision.
WRITE ABOUT A THEME: ORGANIZATION In a short essay(100–150 words), describe three ways in which the structureof the lens of the human eye is well adapted to its functionin vision.
Provide a step by step list of visual sensation through visual processing. Begin at light entering the
eye through signal transduction, to the circuitry involved in the brain in understanding the "what"
and "where" of the object. Be sure to review the specific criteria outlined in the rubric.
Chapter 38 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 38.1 - Which division of the autonomic nervous system...Ch. 38.1 - Prob. 2CCCh. 38.2 - When you wave your right hand, what part of your...Ch. 38.2 - People who are inebriated have difficulty touching...Ch. 38.2 - WHAT IF? Two groups of individuals have CNS...Ch. 38.3 - Prob. 1CCCh. 38.3 - Prob. 2CCCh. 38.3 - WHAT IF? If a woman with a severed corpus callosum...Ch. 38.4 - Which one of the five categories of sensory...Ch. 38.4 - Prob. 2CC
Ch. 38.4 - WHAT IF? If you stimulated a sensory neuron of an...Ch. 38.5 - Prob. 1CCCh. 38.5 - Prob. 2CCCh. 38.5 - Prob. 3CCCh. 38.5 - Prob. 4CCCh. 38.6 - Contrast the light-detecting organs of planarians...Ch. 38.6 - Prob. 2CCCh. 38.6 - MAKE CONNECTIONS Compare the function of retinal...Ch. 38 - Patients with damage to Wernickes area have...Ch. 38 - The cerebral cortex does not play a major role in...Ch. 38 - The middle ear converts A. air pressure waves to...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - Prob. 6TYUCh. 38 - Prob. 7TYUCh. 38 - SCIENTIFIC INQUIRY Consider an individual who had...Ch. 38 - Prob. 9TYUCh. 38 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 38 - Prob. 11TYU
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- Recall that the eye is composed of three layers or "tunics" — the fibrous, vascular, and nervous layers — which enclose two cavities that are separated from each other by the lens. Review the components of these three layers by matching each description with the appropriate letter in the figure below: 1. Fluid in the anterior portion of the eye that provides nutrients to the lens and cornea 2. The "whites" of the eye 3. Area of the retina that lacks photoreceptors 4. Contains smooth muscle that controls the shape of the lens 5. Nutritive (nourishing) layer of the eye 6. Layer containing rods and cones 7. Gel-like substance that helps support the eyeball 8. Pigmented smooth muscles that control pupil size 9. Most anterior component of the fibrous layer — your "window to the world" 10. Structure that changes shape to bend light toward rods and conesarrow_forwardUsing a line diagram, show how parallel rays of light are brought to a focus on the retina. Explain how this focus is maintained as the distance from the object to the eye is increasedor decreased (that is, explain accommodation).arrow_forwarda. Rodsb. Conesc. Rods and conesd. PhotoreceptorsCells in the eye that are affected by colour blindness are primarily found in location Answer(number), and these cells are known as Answer(letter).arrow_forward
- How do we perceive stimuli in everyday life. Describe this pathway (do not list) for vision OR olfaction using the key words listed below. (Note: Be sure you can do this for sound and balance too) Start with the stimulus and end with its perception in the cortex. (Note: words are in no particular order). Key words for vision: photoreceptor, retina, light, visual cortex, optic nerve (CN II), action potentials, optic chiasm, optic tract, LGN of thalamus, “I see light!” Key words for olfaction: odorant, olfactory receptor cell, olfactory nerve (CN I), g-proteins, olfactory bulb, olfactory tract, olfactory cortex, action potentials, odor molecules. “I smell coffee!”arrow_forwardDiscussion: Describe how the pupil reacts to the following changes in conditions:(a) Sudden increase in brightness(b) Gradual dimming of light until it is almost dark(c) Looking at a kite, then down at your hand to let out string(d) When a person die(e) There’s a compressed cranial nerve 3arrow_forwardDiscuss the duplicity theory of vision, summarizing theadvantage of having separate types of retinal photoreceptorcells and neural circuits for photopic and scotopic vision.arrow_forward
- What is the standard "textbook model" for how the Primary Visual Cortex (V1) processes visual information?arrow_forwardOrder the structures from receipt of light, generation of action potential to le eye, heading toward visual cerebral cortex. Each structure is used only oncearrow_forward3) Color vision with retinal implants sensation of white color, i.e., they do not provide color vision. Why do you think that this is so? What do you see as the biggest challenge in front of this? : Retinal implants mainly generate thearrow_forward
- The function of the vertebrate eye is unusual compared with other processes found within the body. For example, the direction in which sensory information flows is actually opposite to the path that light takes through the retina. Explain the sequence of events involved in the movement of light and information through the structures of the eye and explain why they move in opposite directions. Compare this sequence to the functioning of the Mollusk eye.arrow_forwardMatch the function with the correct structure. 1. Absorbs scattered light Sclera 2. Photoreceptors of the retina responsible for Vitreous humour colour vision 3. Refracts light rays into the eye Ciliary muscles 4. Supports the eyeball with the fluid they Iris contain 5. Alters the shape of the lens to promote Cones focusing Lens 6. Protects and supports the eyeball 7. Area that contains a high density of cones Choroid 8. Photoreceptors of the retina sensitive to dim Fovea centralis light 9. Focuses the light rays on the fovea centralis Rods 10. Regulates the amount of light that enters Cornea the eyearrow_forwarddefine visual feedback and provide a description of the principle.arrow_forward
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