Laboratory Experiments in Microbiology (11th Edition)
Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
bartleby

Videos

Question
Book Icon
Chapter 36, Problem 1Q
Summary Introduction

To write:

The role of humans as the intermediate host or definitive host for Trichinella.

Introduction:

Trichinella is the genus of parasitic roundworms of nematode that cause Trichinosis or Trichinellosis. The members of this genus are called trichinia worms. It is a food-borne disease and humans get affected by eating raw or undercooked meat from the animals infected by this parasite.

Expert Solution & Answer
Check Mark

Explanation of Solution

The humans serve both as an intermediate host (larvae in the muscle) and a definitive host (adult worm in the intestine) for Trichinella. Both larval and adult forms can parasitize the humans as definitive hosts but later on, they become intermediate, when the larvae get established in between the muscles.

After the first week, they start to release the larvae that penetrate the intestinal wall and move to the muscle tissues where they encyst. The same host sustains the adult worm temporarily but larvae for a longer period of time.

Conclusion

Thus, the humans serve both the intermediate as well as the definitive host for the genus Trichinella.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
From your previous experiment, you found that this enhancer activates stripe 2 of eve expression. When you sequence this enhancer you find several binding sites for the gap gene, Giant. To test how Giant interacts with eve, you decide to remove all of the Giant binding sites from the eve enhancer. What results do you expect to see with respect to eve expression?
What experiment could you do to see if the maternal gene, bicoid, is sufficient to form anterior fates?
You’re curious about the effect that gap genes have on the pair-rule gene, evenskipped (eve), so you isolate and sequence each of the eve enhancers. You’re particularly interested in one of the enhancers, which is just upstream of the eve gene.  Describe an experimental technique you would use to find out where this particular eve enhancer is active.

Chapter 36 Solutions

Laboratory Experiments in Microbiology (11th Edition)

Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Basic Clinical Laboratory Techniques 6E
Biology
ISBN:9781133893943
Author:ESTRIDGE
Publisher:Cengage
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Curren'S Math For Meds: Dosages & Sol
Nursing
ISBN:9781305143531
Author:CURREN
Publisher:Cengage
Text book image
Case Studies In Health Information Management
Biology
ISBN:9781337676908
Author:SCHNERING
Publisher:Cengage
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
Parasites: Protozoa (classification, structure, life cycle); Author: ATP;https://www.youtube.com/watch?v=V4iSB0_7opM;License: Standard youtube license