MICROBIOLOGY-ACCESS >CUSTOM<
13th Edition
ISBN: 9780135668825
Author: Tortora
Publisher: PEARSON
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Chapter 16, Problem 7MCQ
In 1884. Elie Metchnikoff observed blood cells collected around a splinter inserted in a sea star embryo. This was the discovery of
- a. blood cells.
- b. sea stars.
- c. phagocytosis.
- d. immunity.
- e. none of the above
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Chapter 16 Solutions
MICROBIOLOGY-ACCESS >CUSTOM<
Ch. 16 - Identify at least one physical and one chemical...Ch. 16 - Define inflammation, and list its characteristics.Ch. 16 - What are interferons? Discuss their roles in...Ch. 16 - How can the complement system cause endotoxic...Ch. 16 - Patients with X-linked chronic granulomatous...Ch. 16 - Prob. 6RCh. 16 - Give several examples of how microbes evade the...Ch. 16 - Prob. 8RCh. 16 - Are the following involved in innate or adaptive...Ch. 16 - These agranulocytes are not phagocytic until they...
Ch. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - If the following are placed in the order of...Ch. 16 - Prob. 4MCQCh. 16 - A human host can prevent a pathogen from getting...Ch. 16 - Prob. 6MCQCh. 16 - In 1884. Elie Metchnikoff observed blood cells...Ch. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 1ACh. 16 - Prob. 2ACh. 16 - Prob. 3ACh. 16 - The list below identifies a virulence factor for a...Ch. 16 - People with Rhinovirus infections of the nose and...Ch. 16 - Prob. 2CAECh. 16 - Leukocyte adherence deficiency (LAD) is an...Ch. 16 - The neutrophils of individuals with Chdiak-Higashi...Ch. 16 - Consider the following. a. In laboratory...
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- An antigen must be considered: a. An antibody b. To produce cytokines c. Foreign d. A T lymphocytearrow_forwardSponges display nonspecific immunity. In an experiment, the cells of two different sponges were mixed and placed within a petri dish. The cells from each sponge sorted and arranged themselves together according to organism. What does this characteristic demonstrate? A. Sponges have memory T-cells and share a more recent common ancestor with vertebrates than other invertebrates. B. The experiment provides evidence for the speed of evolution and the use of specific immunity within the organism. C. Sponges have an ability to recognize their own cells as a characteristic of acquired immunity. D. Sharing genetic information from cell to cell is possible by means of receptors and protein-lined pits.arrow_forwardWhich of the following sudden changes might be a result of an infection? a. increase in the activity of white blood cells b. decrease in the activity of antigens produced by the mitochondria c. decrease in the amount of DNA present in the nuclei of cells d. increase in the number of red blood cellsarrow_forward
- During removal of cancerous tissue in breast cancer, lymph nodes in the armpit are also removed (if found cancerous). As a result, a. cancer will reoccur at the original site b. Breast tissue will remain free of cancer, but remaining lymph nodes will become cancerous c. Lymph nodes will remain free of cancer, but remaining breast tissue will become cancerous d. There will recurrent infections in the associated arm e. There will recurrent infections in opposite armarrow_forwardIbuprofen dampens the immune system’s inflammation response.What might be a short-term consequence of taking ibuprofen?a. Blood vessels may become less permeable.b. Antibodies may become less active.c. Cytotoxic T cells may begin to divide.d. All of the above are correctarrow_forwardWhich of these types of cytokines do not match with the given description? A. Autocrine - The same cell secretes and receives the cytokine signal. B. Paracrine- The cytokine signal is secreted from one cell to a nearby cell(s). C. Endocrine - The cytokine signal is secreted and travels via the circulatory system received by a distant cell(s). D. All of the descriptions are matched correctly.arrow_forward
- Vaccines are given to provide protection against pathogen causing infections. Which of the following statements best describes how vaccines work? a Fever and swelling develop which is the first response in killing a pathogen b. Antibodies in the vaccine provide the body with nonspecific immunity to an antigen. c. An inactivated or killed virus stimulates the body to develop specific immunity to that type of virus. d. Heathy bacteria causes the body to release toxins which will protect the body if later exposed to different type of bacteria.arrow_forwardWhich part of an antibody binds to the antigen?a. Heavy chain.b. Light chain.c. Variable region.d. All of the above. B ceIls do which of the following?a. Develop into plasma cells and memory cellsb. Involved in humoral immunityc. Develop and mature in red bone marrowd. Atl of the abovearrow_forwardStructures on invading cells recognized by the adaptive immune system are known as a. antigens. b. interleukins. c. antibodies. d. lymphocytes.arrow_forward
- The four characteristics of adaptive immunity include all of the following except a. activation by a specific antigen. b. memory. c. production of clones of cells that have the same TCR or BCR. d. effective against a wide array of pathogens.arrow_forwardIn preparying cells for karyotyping, a hypotonic solution is used in the process. What is the purpose of the hypotonic solution? a. It is used to separate leukocytes from erythrocytes. b. It is used to keep the structure of the lymphocytes intact. c. It is used to destroy erythrocytes. d. It is used to fixlymphocytes. e. It is used to help produce distinct banding patternsarrow_forwardWhich of the following is not a characteristic of inflammation? a. inactivation of macrophages b. increased vascular permeability and edema c. vasodilation d. pain e. influx of leukocytes.arrow_forward
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