The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms. Introduction: Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

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Answer 1

Question

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

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Students have asked these similar questions

Which statement among A-E is false concerning digestive system and gastrointestinal (GI) tract infections? A) O The more severe forms of gastroenteritis, like dysentery, produce abdominal cramps, fever, and blood. B) ORehydration and electrolyte replacement are typically the treatment for those with GI tract infections. C) O Invasive GI tract infections are caused by intracellular pathogens such as Salmonella and certain E coli. D) O Among protozoal pathogens, Giardia is a major cause of gastroenteritis. E) O Most GI tract infections are due to viruses. F) OA-E are all correct.

The large intestine contains bacteria, such as E.coli, that synthesize vitamin K and some B vitamins and absorbed into the bloodstream. Answer the following questions: 1. Describe the type of symbiosis best represented by E.coli and human large intestine. 2. When can E.coli become potentially pathogenic (disease-causing)? Explain briefly.

There have been many cases of human infection with Salmonella caused by contact (or ingestion) with raw or undercooked chicken. This is an example of which type of microbial source for foodborne illness? A food animal - infection or colonization during its lifetime Contamination by human or animal feces during growing, harvesting, washing, transport, or storage Contamination by naturally occurring environmental organisms from soil or other sources None of the other four answers are correct Contamination by human microbiota or pathogens during handling & preparation

Answer 2

Question

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Expert Solution & Answer

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Answer 3

Question

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Expert Solution & Answer

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Answer 4

Question

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Expert Solution & Answer

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Answer 5

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Answer 6

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Answer 7

Chapter 20, Problem 14Q

Summary Introduction

To determine:

The reason that the normal biota of GI tract seems to include a lot of disease-causing organisms.

Introduction:

Gastrointestinal tract or digestive tract is responsible for ingesting and digesting food, absorbing nutrients, and eliminating waste. The alimentary canal is a passage through which the food passes in our body. It includes mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Answer 8

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Answer 9

Summary Introduction

To determine:

The reason that if microbiota are “normal” then why they are called potential pathogens.

Introduction:

The human body is occupied with various non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes. For example, the normal microbiota of Lactobacillus and Staphylococcus among others prevents microbial infection in different body regions.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 20.1 - Prob. 1AYP Ch. 20.1 - List the natural defenses present in the...Ch. 20.1 - Prob. 1NP Ch. 20.2 - List the types of normal biota presently known to...Ch. 20.2 - Describe how our view has changed of normal biota...Ch. 20.3 - List the possible causative agents, modes of...Ch. 20.3 - Prob. 6AYP Ch. 20.3 - Prob. 7AYP Ch. 20.3 - Identify the most important features of mumps,...Ch. 20.3 - Differentiate among the main types of hepatitis,...

Solution Summary: The author explains that the human body is occupied with non-pathogenic normal microbiota, which prevents the entry of pathogenic microbes.

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Chapter 20 Solutions