Answered: Which of the following is NOT true of…

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Which of the following is NOT true of bacterial exotoxins?

Comprehensive Medical Assisting: Administrative and Clinical Competencies (MindTap Course List)

6th Edition

ISBN:9781305964792

Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Publisher:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Chapter26: Pediatrics

Section: Chapter Questions

Problem 3CR

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Concept explainers

Tissue renewal

In multicellular organisms, tissue is a level of structure that consists of a group of physically and functionally identical cells and their intercellular substances. Unicellular organisms do not have tissues. Tissues are absent or poorly differentiated even in the simplest multicellular animals, such as sponges. However, more evolved multicellular animals and plants have specialized tissues that may organize and govern an organism's reaction to its surroundings. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.

Question

Which of the following is NOT true of bacterial exotoxins?

1. Important in the pathogenesis of many human diseases

2. Their toxic effect can be systemic, affecting cells distant from the primary site of infection

3. None of the other four answers (All are true of bacterial exotoxins)

4. Different exotoxins may affect different types of cells (e.g., nerves, gastrointestinal mucosa)

5. Some exotoxins have two components, A (active) and B (binding)

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