Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 24, Problem 7TY
Summary Introduction
Introduction:
Microbiome is consisted with all the genetic material of entire collection of microbes in a specific environment. Species of archaea, bacteria, protists and
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Which of the following is NOT a true statement?
Infected people without symptoms can sometimes transmit their infection to others
None of the other four answers (All are true statements)
Infectious diseases are still one of the leading causes of death in some parts of the world
For a given microbe, the number of cells or virus particles required to cause an infection (ID50) is always the same, regardless of the portal of entry
Zoonoses can spread from animals to humans
Which of the following is NOT a site colonized by normal microbiota in humans?
Skin
Brain and spinal cord
Large intestine (colon)
Mouth
None of the other four answers (All are sites where normal microbiota are found)
Which of the following is a difference between transient and resident microbiota?
Transient microbiota are pathogenic, and resident microbiota are not.
Resident microbiota remain on the host for an extended period.
Humans do not have transient microbiota.
Transient microbiota can be opportunistic pathogens, and resident microbiota cannot.
Resident microbiota cause disease and transient microbiota do not.
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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
- Which of the following situations does NOT demonstrate the importance of a healthy microbiome? Group of answer choices Anthony suffers from debilitating diarrhea after a lengthy course of antibiotics to treat his MRSA infection. Andy is lactose intolerant. His body does not break down lactose, so the microorganisms in the gut do it for him. Mary suffers from colon cancer. While being treated, she develops an opportunistic Bacteroides fragilis infection. Jenna is prone to yeast infections, so she routinely eats yogurt and takes a probiotic supplement to increase the amount of lactic acid bacteria in her vagina.arrow_forwardBeaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following is not a common type of pathogen at the beach? Bacteria Protozoa Viruses Wormsarrow_forwardWhich of the following is an example of a noncommunicable infectious disease? infection with a respiratory virus food poisoning due to a preformed bacterial toxin in food skin infection acquired from a dog bite infection acquired from the stick of a contaminated needlearrow_forward
- A microbiologist argued that there is no such thing as “normal” microbiota of the human body, since the population is dynamic and is constantly changing, depending on diet and external environment. What would be an argument against this microbiologist’s view?arrow_forwardPick a specific microbiome (i.e. skin, mouth, gut, reproductive) and discuss interesting points and how it is important to human health/diversity/etc. Here you can discuss any aspect of the microbiome that you like. Whatever is of most interest to you personally for example the uniqueness of an individual’s microbiome or disease states due to disruptions in bacterial communities, etc. Find a recent (2015 or newer) primary research article that investigates some aspect of the microbiome environment that you discussed in question 2 and discuss the findings and how it has increased our understanding of the microbiome.arrow_forwardWhich of the following is NOT a true statement about microbial infections and disease? 1. Some infections are caused by normal microbiota acting as opportunistic pathogens 2. For some infections, a portion of infected people may never develop any signs or symptoms of disease 3. The time between the effective exposure and appearance of the very first signs or symptoms is called the incubation period 4. None of the other four answers (All are true statements) 5. All infectious diseases are communicable; i.e., they can be transmitted between hostsarrow_forward
- What are the microbes called which colonize our bodies and actually help us to survive by aiding digestion or guarding against infection. vectors normal flora pathogens fomitesarrow_forwardLooking at the composition of young children's gut microbiomes and how it changes under various environmental conditions, would the composition of a child's gut microbiome change depending on what part of the world that they live? why ? For example Asia vs Africa.arrow_forwardWhich of the following statements about the development of infectious diseases is correct? The prodromal period is characterized by very severe symptoms. During the incubation period, the infected individual exhibits obvious signs of sickness. The period of continuation is the time during which the person regains health and fully recovers (back to the pre-disease state). The period of invasion is the time when the height of infection occurs.arrow_forward
- Organisms most likely to be found in extreme environments are. fungi bacteria viruses archaeaarrow_forwardSelect all the statements that are true regarding the drug treatments available for infectious diseases.□ Antiviral drugs are harder to develop than antibiotics because viruses must use our cellular machinery replicate. □ Very few anti-parasitic drugs exist because diseases caused by Eukaryotes are extremely rare all over the world.□ Fewer drugs are available to treat Eukaryotic pathogens because their physiology and functions are very similar to our own.□ Development of antiparasitic drugs are a low priority because the diseases they treat tend to occur in poor countries, and drug companies can't make money.□ Antivirals may quit working because rates of viral mutation are very high.□ There are more antiviral drugs than atibiotics because antiviral drugs are very easy and cheap to make.arrow_forwardList 5 ways microorganisms benefit us. Be specific. and don’t copy off google put it into your own words keep it short and simple but be specificarrow_forward
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