Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 51, Problem 1A
You start a new job in a research lab. The lab protocols state that you should check your hands for any breaks in the skin before handling infectious agents. This is because the epidermis fights microbial infections by
a. making the surface of the skin acidic.
b. excreting lysozyme to attack bacteria.
c. producing mucus to trap microorganisms.
d. All of the choices are correct.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You start a new job in a research lab. The lab protocols state that you should check your hands for any breaks in the skin before handling infectious agents. This is because the body’s outer layer fights microbial infections bya. making the surface of the skin acidic.b. excreting lysozyme to attack bacteria.c. producing mucus to trap microorganisms.d. All of above.
Fever can indicate that
a. the pathogen remains on the skin
b. the body is responding to an infection.
c. a pathogen has been trapped by mucous.
d. the body has recovered from an infection.
Drugs are often given to patients before going into surgery, to dentalpatients with heart disease, or to healthy family members exposed tocontagious infections.a. What word would you use to describe this use of drugs?b. What is the purpose of this form of treatment?c. Explain some potential undesired effects of this form of therapy.d. Define probiotics and list some ways they are used.
Chapter 51 Solutions
Biology with Connect Access Card
Ch. 51 - Cells that target and kill body cells infected by...Ch. 51 - Structures on invading cells recognized by the...Ch. 51 - Which one of the following acts as the alarm...Ch. 51 - Prob. 4UCh. 51 - Receptors that trigger innate immune responses a....Ch. 51 - Diseases in which the persons immune system no...Ch. 51 - Suppose that a new disease is discovered that...Ch. 51 - You start a new job in a research lab. The lab...Ch. 51 - In comparing T-cell receptors and immunoglobulins...Ch. 51 - If you have type AB blood, which of the following...
Ch. 51 - Suppose that you get a paper cut while studying....Ch. 51 - If you wanted to cure allergies by bioengineering...Ch. 51 - Why do we need to be repeatedly vaccinated for...Ch. 51 - Prob. 7ACh. 51 - Suppose you take a job in the marketing department...Ch. 51 - Prob. 2SCh. 51 - Prob. 3SCh. 51 - Toll-like receptors have been found in a wide...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is incorrect? a. Mucosal surfaces are better than skin surfaces at supporting colonization by commensal microorganisms. b. The skin provides a larger surface area than mucosal surfaces for commensal microorganisms. c. There are ten times as many bacteria residing in the intestinal tract than the number of cells in the human body. d. It is common for commensal bacteria to live in symbiosis with their human hosts. e. During gestation in mammals, a fetus does not have any commensal microorganisms on their skin or mucosal surfaces.arrow_forwardThe most important factor in preventing infection in an open wound is Select one or more: а. a sterile dressing b. covering the wound C. irrigation with water d. using soap and water to clean the woundarrow_forwardThe toxin produced during this infection stops cilia movement and is a major contribution to the disease condition. A. Pertussis B. influenza C. Walking pneumonia D. Diphtheriaarrow_forward
- When bacteria causes the death of most or all of the cells in an organ or tissue due to disease, injury, or failure of the blood supply this is usually called __________. a. opportunisitc b. necrotizing fasciitis c. redundant infection d. hemolysis e. intrinsicarrow_forwardWhy are encapsolated bacteria generally more pathogenic than un-capsolated strains. a. Because capsule allows the organism to hide in the body of the host. b. because the capsule causes the phagocyte to mutate c. because the capsule protects bacteria from host immune cells d. because the capsule kills the phagocytes e. because the capsule stimulates a potent immune response in the host.arrow_forwardWhich of the following does NOT have a normal flora? A. cerebrospinal fluid B. mucosal lining of the nose C. urethra D. salivaarrow_forward
- Which of the following describes "incubation period"? a. It is the time interval between entry of an infectious agent into the body and the appearence of the first symptoms and/or signs of the disease b. It is the time after recovery when a person can still harbor the infection c. It is the time interval through which an infected person is able to transmit the infectious agent to others d. It is the time interval between the onset of primary and secondary casesarrow_forwardPenicillin obtained from a fungus is : A. Antibiotic B. Antiseptic C. Antibody D. Antiserumarrow_forwardResearchers have developed mouse models for autism. In an experiment, they introduced Bacteroides fragilis into these mice. Which of the following was a result of this experiment? a.Epithelial barrier integrity was weakened b.Serum metabolites were reduced c.Gut microbiota remained unchanged d.Some autism-related behaviors were minimizedarrow_forward
- New research suggests a link between some microbes that normally live in the body and seemingly unrelated major illnesses. The gum disease called periodontitis itself is not life-threatening, for instance, but it is a fairly good predictor for heart attacks. Bacteria that cause gum disease can trigger inflammation. Thinking back to your reading in Chapter 7, how do you suppose that this response also may be harmful to the heart?arrow_forwardWhich of the following is not typically considered a defense against infection within the Gl tract? a. keratinized layer of cells C. secretory IgA b. mucous coat d. continuous passage of cellsarrow_forwardIn certain bacterial illnesses, particularly lung infections with Pseudomonas aeruginosa, a physician may not treat the patient with antibiotics (which will kill the microorganisms), rather give the patient anti-inflammatory medications. 1. Why might a physician choose to inhibit inflammation in the case of an infection? 2. What types of damage might the inflammatory response do to the surrounding tissues, not just the bacteria it was designed to combat? 3. We talked a lot about controlling the complement cascade because of its potentially damaging effects, what are some of the ways the body can control inflammation and the inflammatory response?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Infection Prevention and Control; Author: thecityoftoronto;https://www.youtube.com/watch?v=jx9sRYmBW3Q;License: Standard Youtube License