Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 33, Problem 39CTQ
How is a condition such as diabetes a good example of the failure of a set point in humans?
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Students have asked these similar questions
Suppose a researcher is interested in examining the effects of mood and food deprivation on eating. Female participants listen to one of two types of music to induce either a happy or a sad mood, following either 19 hours of food deprivation (breakfast and lunch are skipped) or no deprivation. The participants are then given free access to food in a controlled laboratory setting, and the amount of food consumed is measured for each individual.
How many independent variables or factors does this study have? What are they?
Describe this study using the notation system that indicates factors and numbers of levels of each factor.
Use a matrix to diagram the structure of the study.
Define homeostasis. What happens when homeostasis fails?
List the three basic components of a control system and give an example.
Describe the components of a reflex pathway. Contrast the response loop and the feedback loop.
Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable
exactly at its setpoint?
Compare and contrast negative and positive feedback. Give a biological example of each.
Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called?
Chapter 2:
Mr. Fede runs an experiment to see if eating fatty foods raises cholesterol
He uses two groups of rabbits, one that gets fed a high fat diet, and one that does not. The groups are not different in any other way.
After several days, and upon comparing the cholesterol level of both groups, he finds that the high fat diet group has higher levels.
He concludes that eating fatty foods is bad for people.
Has Mr. Fede come to a good conclusion?
Chapter 33 Solutions
Biology 2e
Ch. 33 - Figure 33.11 Which of the following statements...Ch. 33 - Figure 33.21 State whether each of the following...Ch. 33 - Figure 33.23 When bacteria are destroyed by...Ch. 33 - Which type of animal maintains a constant internal...Ch. 33 - The symmetry found in animals that move swiftly is...Ch. 33 - What term describes the condition of a desert...Ch. 33 - A plane that divides an animal into equal right...Ch. 33 - A plane that divides an animal into dorsal and...Ch. 33 - The pleural cavity is a part of which cavity?...Ch. 33 - How could the increasing global temperature...
Ch. 33 - Although most animals are bilaterally symmetrical,...Ch. 33 - Which type of epithelial cell is best adapted to...Ch. 33 - Which type of epithelial cell is found in glands?...Ch. 33 - Which type of epithelial cell is found in the...Ch. 33 - Which type of connective tissue has the most...Ch. 33 - Which type of connective tissue has a mineralized...Ch. 33 - The cell found in bone that breaks it down is...Ch. 33 - The cell found in bone that makes the bone is...Ch. 33 - Plasma is the. fibers in blood matrix of blood...Ch. 33 - The type of muscle cell under voluntary control is...Ch. 33 - The part of a neuron that contains the nucleus is...Ch. 33 - Why are intercalated discs essential to the...Ch. 33 - When faced with a sudden drop in environmental...Ch. 33 - Which is an example of negative feedback? lowering...Ch. 33 - Which method of heat exchange occurs during direct...Ch. 33 - The body’s thermostat is located in the...Ch. 33 - Which of the following is not true about...Ch. 33 - Which of the following is not a way that...Ch. 33 - How does diffusion limit the size of an organism?...Ch. 33 - What is the relationship between BMR and body...Ch. 33 - Explain how using an open circulatory system...Ch. 33 - Describe one key environmental constraint for...Ch. 33 - How can squamous epithelia both facilitate...Ch. 33 - What are the similarities between cartilage and...Ch. 33 - Multiple sclerosis is a debilitating autoimmune...Ch. 33 - When a person leads a sedentary life his skeletal...Ch. 33 - Why are negative feedback loops used to control...Ch. 33 - Why is a fever a “good thing” during a bacterial...Ch. 33 - How is a condition such as diabetes a good example...Ch. 33 - On a molecular level, how can endotherms produce...
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