EBK CAMPBELL BIOLOGY IN FOCUS
2nd Edition
ISBN: 8220101459299
Author: Reece
Publisher: PEARSON
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Chapter 37, Problem 12TYU
Summary Introduction
To describe:
How the electrical properties and structure of vertebrate neurons reflect the differences and similarities with other animal cells.
Concept introduction:
Neuron is an excitable cell (electrically), which receives, transmits and processes the information with the help of chemical and electrical signals. The signals between the neurons occur with the help of synapses.
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Chapter 37 Solutions
EBK CAMPBELL BIOLOGY IN FOCUS
Ch. 37.1 - Prob. 1CCCh. 37.1 - Describe the basic pathway of information flow...Ch. 37.1 - WHAT IF? How might increased branching of an axon...Ch. 37.2 - Under what circumstances could ions flow through...Ch. 37.2 - WHAT IF? Suppose a cells membrane potential shifts...Ch. 37.2 - Prob. 3CCCh. 37.3 - How do action potentials and graded potentials...Ch. 37.3 - In multiple sclerosis (from the Greek skleros,...Ch. 37.3 - Prob. 3CCCh. 37.3 - WHAT IF? Suppose a mutation caused gated sodium...
Ch. 37.4 - Prob. 1CCCh. 37.4 - Organophosphate pesticides work by inhibiting...Ch. 37.4 - MAKE CONNECTIONS Name one or more membrane...Ch. 37 - What happens when a resting neuron's membrane...Ch. 37 - Prob. 2TYUCh. 37 - Prob. 3TYUCh. 37 - Why are action potentials usually conducted in one...Ch. 37 - Which of the following is a direct result of...Ch. 37 - Suppose a particular neurotransmitter causes an...Ch. 37 - Prob. 7TYUCh. 37 - Prob. 8TYUCh. 37 - DRAW IT Suppose a researcher inserts a pair of...Ch. 37 - Prob. 10TYUCh. 37 - FOCUS ON EVOLUTION An action potential is an...Ch. 37 - Prob. 12TYUCh. 37 - SYNTHESIZE YOUR KNOWLEDGE The rattlesnake alerts...
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- structures in the following diagram of a neuron. ?do itarrow_forwardstructures in the following diagram of a neuron. ? Do itarrow_forwardView the University of Michigan Webscope (http://openstaxcollege.org/l/nervefiber) to see an electron micrograph of a cross-section of a myelinated nerve fiber. The axon contains microtubules and neurofilaments, bounded by a plasma membrane known as the axolemma. Outside the plasma membrane of the axon is the myelin sheath, which is composed of the tightly wrapped plasma membrane of a Schwann cell. What aspects of the cells in this image react with the stain that makes them the deep, dark, black color, such as the multiple layers that are the myelin sheath?arrow_forward
- Watch this video (http://openstaxcollege.org/l/summation) to learn about summation. The process of converting electrical signals to chemical signals and back requires subtle changes that can result in transient increases or decreases in membrane voltage. To cause a lasting change in the target cell, multiple signals are usually added together, or summated. Does spatial summation have to happen all at once, or can the separate signals arrive on the postsynaptic neuron at slightly different times? Explain your answer.arrow_forwardGraph of membrane potential versus time The graph above represent time in milliseconds. At what time (in milliseconds) is the inside of the neuron the most positive and why? Explain why the membrane potential changes at X. Explain what is happening at point C to the sodium and potassium ions and how this is affecting the membrane potential. Describe two things that contribute to the resting membrane potential.arrow_forwardEnteric glia (specialized macrophages) are in close proximity to neurons and outnumber neurons- 4- to 10-fold 5- to 12-fold 3- to 8-fold 2- to 6-foldarrow_forward
- Give typed explanationarrow_forwardList and describe the two types of cells found in the nervous system. Discuss, in detail, how neurons communicate with each other, including the role of neurotransmitters. Include a description of how different neurotransmitters mediate behaviors and cognitive processes. Watch this Sandrine Thuret’s “You can grow new brain cells. Here’s how” and Sebastian Seung’s “I am my connectome” and summarize, in detail, the main points. Discuss what each video tells us about the function of neurons in creating our thoughts and behaviors. What do you personally think are the most important ideas from each video? Why? Define the terms sensation and perception. Watch the “Do we see reality as it is?” and “Your brain hallucinates your conscious reality” videos and describe the main points of each video in detail. Discuss what the textbook says about how the brain constructs our perceptions of the world. With the information from the videos and textbook, how accurate or “real” do you think our…arrow_forwardStructures in the following diagram of a neuron? Asaparrow_forward
- Glial cells take care of neurons. Review the different types of glial cells by matching each description with the appropriate cell. You may use answers more than once. 1. Wrap around axons in the CNS: 2. Wrap around axons in the PNS: 3. Regulate exchange of substances with capillaries and control interstitial space: 4. Surround, regulate, and protect cell bodies of neurons in the PNS: 5. Tiny macrophages that engulf unwanted substances and keep the CNS "clean": 6. Provide a supportive network: 7. Help produce cerebrospinal fluid at choroid plexus:arrow_forwardConsider a typical mammalian neuron with all of the appropriate membrane channels. If you know that neuron is at rest, at a temperature of 37°C and you know the intracellular and extracellular concentration of the potassium, which of the following statements is most likely to be true? a. The equilibrium potential of potassium would be negative if the concentration of potassium is higher on the inside. b. The equilibrium potential of potassium would be positive if the concentration of potassium is higher on the inside c. The equilibrium potential of potassium cannot be calculated because the Nernst equation requires that you know the concentration of all ions d. The equilibrium potential of potassium be zero if the concentration of potassium is higher on the outside e. None of the abovearrow_forwardPlease provide approximately one paragraph b them discuss the following two questions about neurons. Question 1: Is there a relationship between the morphology (shape) and function of a neuron? Question 2: Many neurons differ in appearance due to the number of dendrites they have. What would be the advantage to a neuron to have multiple dendrites?arrow_forward
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