EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Question
Chapter 4, Problem 10TY
Summary Introduction
Introduction:
The organisms are affected by their external environment from time-to-time. This results in changes in the internal environment of the organisms such as a change in the body temperature, blood pressure, and glucose level. Thus, it is necessary to maintain the homeostasis within the body to allow normal functioning of the organs.
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Students have asked these similar questions
which of the following scenarios can be classified as a negative feedback loop?
a. increase in oxytocin caused by increased contractions
b. increase in blood pressure to reduce heart rate
c. increase in testosterone to help increase a fight or flight response
d. increase in platelet production to help increase blood clotting
Which of the following is true of positive feedback?
a. The change is opposite that of negative feedback
b. The effector turns off the response
c. The change is amplified
What is the difference between the answers a & b?
Which of the following is an example of negative feedback?
A. High blood sugar will increase the viscosity of blood plasma (plasma is concentrated). In response, water is drawn into the plasma from surrounding tissues in order to dilute the plasma
B. Breathing rate increases during exercise to provide more oxygen to muscle cells. Heart rate also increase to increase the speed at which the oxygen is delivered.
C. During digestion cells in the stomach produce HCl to begin breaking down proteins, the HCl then stimulates the release of pepsin, to continue breaking down proteins.
D. In the immune system, antibodies produced by B-cells bind to antigens, which activates other B-cells to produce antibodies of the same kind.
Chapter 4 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 4 - Health clinics sometimes cite retrospective...Ch. 4 - How important to you is FDA approval and/or...Ch. 4 - Describe some advantages and disadvantages of...Ch. 4 -
2. Name the four main types of tissues in the...Ch. 4 - Prob. 3CRCh. 4 - Prob. 4CRCh. 4 - List the 11 organ systems of the body and give at...Ch. 4 -
6. Define interstitial fluid.
Ch. 4 - Name the two cavities of the anterior body cavity...Ch. 4 - Prob. 8CR
Ch. 4 - Discuss the purpose of homeostasis in the body.Ch. 4 - Prob. 10CRCh. 4 -
1. Collagen and elastin fibers are typically...Ch. 4 -
2. Cells in cardiac muscle are able to contract...Ch. 4 - Which of the following membranes is not composed...Ch. 4 -
4. Exocrine and endocrine glands are types...Ch. 4 - Prob. 5TYCh. 4 - What property do all muscle tissues have in...Ch. 4 -
7. Injury to bone heals more quickly than injury...Ch. 4 - Which of the following tissues may be found in the...Ch. 4 - Which of the following is responsible for skin...Ch. 4 - Prob. 10TYCh. 4 - Prob. 11TYCh. 4 - Prob. 12TYCh. 4 - A substantial amount of nonliving extracellular...Ch. 4 - Prob. 14TYCh. 4 - Reducing food intake may lead to weight loss by...Ch. 4 -
1. Your roommate says that the concept of...Ch. 4 - What do you think would be some of the problems...Ch. 4 - Sherlock Holmes, the greatest fictional detective...Ch. 4 -
4. Dieting is difficult. People who do manage to...Ch. 4 - Fibrous connective tissue consists of ground...Ch. 4 -
6. By definition, an organ is a structure...
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