ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Question
Chapter 32, Problem 8TYU
Summary Introduction
To draw:
The model of the control circuit(s) required for driving an automobile at a fairly constant speed over a hilly road. Label each figure that represents a sensor, stimulus, or response.
Concept introduction:
An automobile is being driven by a driver at a fairly constant speed over a hilly road. There will be stimulus, sensor and a response. The stimulus is that a car is moving fast or slow. The sensor is that the electronic sensors detect the pace, and automatically the speed of the vehicle increases or decreases. The response is the increase in the speed by using an accelerator or the decrease of the speed by using a brake.
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The "All or None" response means that:
A stimulus causes depolarization and repolarization regardless of the strength of
the stimulus
There is no threshold for an electrical stimulus signal to reach before
depolarization and repolarization
O Potassium channels open for depolarization and sodium channels open for
repolarization
A stimulus has to be strong enough for depolarization to occur followed by
repolarization
In a negative feedback loop, the effector moves the system in the direction as the stimulus.
In negative feedback systems
the receptor sends a negative signal
the stimulus is increased or amplified
the effector reduces or eliminates the stimulus
the control center receives input from the effector
the receptor increases or enhances the stimulus
Chapter 32 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 32.1 - What properties do all types of epithelia share?Ch. 32.1 - Prob. 2CCCh. 32.2 - Prob. 1CCCh. 32.2 - Prob. 2CCCh. 32.2 - Prob. 3CCCh. 32.3 - Is it accurate to define homeostasis as a constant...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - What is the function of the filtration step in...Ch. 32.4 - What advantage does uric acid offer as a...
Ch. 32.4 - WHAT IF? A camel standing in the sun requires much...Ch. 32.5 - Prob. 1CCCh. 32.5 - Prob. 2CCCh. 32.5 - WHAT IF? If blood pressure in the afferent...Ch. 32 - The body tissue that consists largely of material...Ch. 32 - Prob. 2TYUCh. 32 - Which process in the nephron is least selective?...Ch. 32 - Homeostasis typically relies on negative feedback...Ch. 32 - Prob. 5TYUCh. 32 - In which of the following species should natural...Ch. 32 - Prob. 7TYUCh. 32 - Prob. 8TYUCh. 32 - Prob. 9TYUCh. 32 - Prob. 10TYUCh. 32 - Prob. 11TYUCh. 32 - SYNTHESIZE YOUR KNOWLEDGE These macaques (Macaca...
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