Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Question
Chapter 24, Problem 6TYK
Summary Introduction
To determine:
The way in which HIV is transmitted, and the effect on the immune cells of the HIV infected person. The effective measures to prevent HIV.
Concept introduction:
HIV or human immunodeficiency virus is a virus that infects the body and causes AIDS or acquired immunodeficiency syndrome. It is a retrovirus that is transmitted via sexual contact or through the transfer of body fluids. The HIV causes the immune cells specifically CD4 lymphocytes that reduce the immune efficiency of the body.
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What is the difference between HIV and AIDS? Include some symptoms associated with each.
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Chapter 24 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 24 - Complete this concept map to summarize the key...Ch. 24 - Foreign molecules that elicit an immune response...Ch. 24 - Which of the following is not part of the...Ch. 24 - Which of the following best describes the...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - Prob. 8TYKCh. 24 - Prob. 9TYKCh. 24 - Prob. 10TYK
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- a.) Why is HIV infection dangerous? b.) How is the HIV virus transmitted? C.) And how can infection be prevented?arrow_forwardTo date, there is no cure for HIV. Because of this, the will be present in an infected individual throughout their lifetime. This makes HIV a A.) latent disease. B.) zoonotic disease. C.) chronic disease. D.) nosocomial disease. E.) convalescent disease.arrow_forwardWhat is the percentage of humans that are resistant to HIV? What makes them resistant?arrow_forward
- with HIV, explain the mechanism of intracellular infection and the role of reverse transcriptase. What would you explain about the process? What is the significance of the CD4+ count? ( Discuss the meaning of various ranges of CD4 counts.) List 5 opportunistic infections AND describe data to suggest whether or not a patient has such an infection.arrow_forwardWhich cells are attacked by HIV?arrow_forwardWhat is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?arrow_forward
- . . . . Why is HIV not transmitted from an infected individual to an uninfected individual by a mosquito bite? What is a difference between pathogenicity and virulence? Explain what an LDso value is. What are the five stages of acute infection? When do normal signs and symptoms occur? What are sequelae?arrow_forwardWhen can we say that HIV has progressed to the stage of AIDS? List several signs and explain why they occurarrow_forwardDescribe the ways in which each of the following pathogens can disarm their host’s immune system or manipulate it to their own advantage:a. Pathogenic strains of Staphylococcusb. Enveloped virusesarrow_forward
- Let’s say there are two closely related viruses, let’s call them Guernsey virus and Micro virus. These two viruses only infect epithelial cells. Their surface antigens are sufficiently similar that there are a number of shared epitopes between the two viruses. Choose one of the following: A) If you get infected and successfully recover from one virus, it’s quite possible that you’ll have neutralizing antibodies against the other. B) If you get infected and successfully recover from one virus, you’ll still be susceptible to the other one because the antigens aren’t exactly the same. C) If you get infected and successfully recover from one virus, it’s likely that getting infected with the other virus will be worse because of the common phenomena of antibody-dependent enhancement. D) Not enough information has been given.arrow_forwardWhat is the basic structure of the HIV virus? What is the function of the glycoproteins of its envelope? SARS is a disease that appeared in 2003 with epidemic features in the province of Guangdong, in east China. What type of agent causes SARS?arrow_forwardExplain HIV is so difficult to treat. Why antiviral medication is a cocktail/mixture of different antiviral medications and how might they work to fight off the infection?arrow_forward
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