MICROBIOLOGY W/ACCESS
4th Edition
ISBN: 9781266808685
Author: Cowan
Publisher: MCG
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Chapter 18, Problem 15TF
Summary Introduction
Introduction:
Skin contains numerous physical and chemical properties that make it an important barrier against destructive pathogens and foreign substances. Skin exposes an environment that is unfriendly for the growth of many microorganisms. The skin has vast dry surfaces with high salt concentration and it is coated with toxic antimicrobial substances.
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Why is the skin not always a favorable microenvironment for colonization by bacteria?
Bacteria have a single
circular chromosome while human cells
have 46 linear chromosomes. This means bacteria are considered
half lloyd
having only one copy of each gene.
The skin microbiota does not differ across moist or dry areas on our skin.
True
False
Chapter 18 Solutions
MICROBIOLOGY W/ACCESS
Ch. 18.1 - Describe the important anatomical features of the...Ch. 18.1 - Prob. 2AYPCh. 18.2 - Prob. 3AYPCh. 18.3 - Prob. 2CFCh. 18.3 - Prob. 4AYPCh. 18.3 - Prob. 5AYPCh. 18.3 - Prob. 6AYPCh. 18.3 - Prob. 7AYPCh. 18.3 - Prob. 8AYPCh. 18.3 - Prob. 9AYP
Ch. 18.4 - Prob. 10AYPCh. 18.4 - Prob. 11AYPCh. 18.5 - List the types of normal biota presently known to...Ch. 18.6 - Prob. 13AYPCh. 18.6 - Prob. 14AYPCh. 18 - Prob. 1CFCh. 18 - Prob. 1MCQCh. 18 - Prob. 2MCQCh. 18 - Which of the following is probably the most...Ch. 18 - Prob. 4MCQCh. 18 - Prob. 5MCQCh. 18 - Prob. 6MCQCh. 18 - Prob. 7MCQCh. 18 - Prob. 8MCQCh. 18 - Prob. 9MCQCh. 18 - Prob. 10MCQCh. 18 - Prob. 11TFCh. 18 - Prob. 12TFCh. 18 - Prob. 13TFCh. 18 - Prob. 14TFCh. 18 - Prob. 15TFCh. 18 - Prob. 1CTQCh. 18 - Prob. 2CTQCh. 18 - Prob. 3CTQCh. 18 - Prob. 4CTQCh. 18 - a. Conduct additional research, and discuss...Ch. 18 - Prob. 6CTQCh. 18 - Prob. 7CTQCh. 18 - Prob. 8CTQCh. 18 - Prob. 9CTQCh. 18 - Prob. 10CTQCh. 18 - Prob. 1CCCh. 18 - Prob. 2CCCh. 18 - Prob. 3CCCh. 18 - Prob. 4CCCh. 18 - Prob. 1VCCh. 18 - Prob. 1CM
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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
- A common characteristic of a site of infection, such as a pimple on the skin, is pus. What is responsible for the white color of pus?arrow_forwardEnlist the characteristics of the skin's normal microbiota.arrow_forwardNonhealing wounds on the surface of the body are often extremely difficult to manage, in part because the microbial cause of the lack of healing is often extremely difficult to identify. Create a list of 4 reasons this might be the case.arrow_forward
- ultiple Choice .In varicella when the rash starts from the trunk and then spread to other parts of the body, this is known as? . Celestial map . Centrifugal appearance . Crust . Eschar ANSWER: RATIO: . This is a secondary lesion caused by the secretion of vesicle drying on the skin. . Celestial map . Centrifugal appearance =. Crust . Eschar ANSWER: RATIO: . In the eruptive stage of varicella, all stages are present simultaneously before all are covered with scabs, this is known BS; . Celestial map . Centrifugal appearance - Crust . Eschar NSWER: CATIO:arrow_forwardDifferentiate between normal microbiota and transient bacteria found on skin. Which type is more difficult to remove? Explain.arrow_forwardIdentification of a unique skin rash can often be the first step in diagnosing a disease. What infectious agents are indicated by the rashes below?arrow_forward
- ---Answer. A common characteristic of a site of infection, such as a pimple on the skin, is pus. What is responsible for the white color of pus.arrow_forwardWhat feature of the skin creates a physical barrier to microbial invasion? Group of answer choices The outer layers are composed of cells full of protein which forms NETs to trap microbes until they are shed. The surface is constantly patrolled by phagocytic cells. The outer layers are dead cells, tightly linked together, and are frequently shed. All of these mechanisms can provide defense against microbial invaders. The oil secreted onto the surface of the skin traps microbes, preventing penetration. The fine hairs move microbes to mucous membranes for phagocytosis.arrow_forwardBacillus anthracis is the causative agent of anthrax. true or false?arrow_forward
- Why does treatment of human skin with alcohol not create a completely sterile environment?arrow_forwardThis picture represents a skin infection in different conditions. What can you conclude about the relationship between the use of methamphetamines, MRSA, and healing time?arrow_forwardList and explain at least 3 Bacterial infections of the skin.arrow_forward
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