Homework Answers
c. HIV cripples the immune system by infecting CD8+ cells.
HIV affects a specific type of T cell in the body known as CD4 or T helper cells. Helper T cells are responsible for coordinating the adapative T and B cell response to protect against intracellular pathogens.
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3. Which of the following statements concerning HIV infection of host cells is incorrect? a. HAART...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
Since the 1980s, HIV (Human Immunodeficiency Virus) has been infecting humans around the world causing the...
Since the 1980s, HIV (Human Immunodeficiency Virus) has been infecting humans around the world causing the condition known as AIDS (Acquired Immune Deficiency Syndrome). HIV, like all viruses, needs to enter cells and use their machinery to reproduce and spread. During HIV infection, the virus enters specific cells of the immune system (T-cells) by "docking" onto cell surface proteins, including one called CCR5 Genetic analysis of individuals who are naturally immune (resistant) to HIV have revealed that resistance to HIV...
4. When, in the summer of 1996, reports were released on the suc prote tors were...
4. When, in the summer of 1996, reports were released on the suc prote tors were faced with new problems of distribution. Protease inhibitor used as detection and lead to a great increase in disease-fighting immune cells. But no one knew if the drugs could wipe out HIV lurking in the lymph nodes. Indeed, little had been published. Attention had been focused on dramatic turnabouts, but less attention had been paid to failures, or resurgences of th virus. Since that...
31. A common side effect is HIV medications is lipodistrophy, which is... A. gastric distress when...
31. A common side effect is HIV medications is lipodistrophy, which is... A. gastric distress when eating fatty foods C. numbness in the fingers and toes B. redistribution of body fat D. Anemia 32. What happened each time the AIDS definition was changed? A. Diagnosing AIDS became significantly more difficult. B. There was a decrease in the number of AIDS cases reported. C. Diagnosing AIDS became available only in exclusive testing centers. D. There was an increase in the number...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
QUESTION 1 Although SARS-CoV-2 is currently a global health threat, how might we turn it into...
QUESTION 1 Although SARS-CoV-2 is currently a global health threat, how might we turn it into a tool for biotechnology? a. It could possibly be turned into a viral vector against lung cancers b. Its promoters might be used to express genes in lung cells c. Its surface proteins could be used for new epitope tags d. All of the above QUESTION 2 Which of the following are applications of molecular assembly described in this course? a. It can be...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
Since the 1980s, HIV (Human Immunodeficiency Virus) has been infecting humans around the world causing the condition known as AIDS (Acquired Immune Deficiency Syndrome). HIV, like all viruses, needs to enter cells and use their machinery to reproduce and spread. During HIV infection, the virus enters specific cells of the immune system (T-cells) by "docking" onto cell surface proteins, including one called CCR5 Genetic analysis of individuals who are naturally immune (resistant) to HIV have revealed that resistance to HIV...
4. When, in the summer of 1996, reports were released on the suc prote tors were faced with new problems of distribution. Protease inhibitor used as detection and lead to a great increase in disease-fighting immune cells. But no one knew if the drugs could wipe out HIV lurking in the lymph nodes. Indeed, little had been published. Attention had been focused on dramatic turnabouts, but less attention had been paid to failures, or resurgences of th virus. Since that...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
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