CAMPBELL BIOLOGY,VOL.II >CUSTOM<
CAMPBELL BIOLOGY,VOL.II >CUSTOM<
17th Edition
ISBN: 9781323803677
Author: Urry
Publisher: PEARSON
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Chapter 43, Problem 1TYU
Summary Introduction

Introduction: The innate immunity of insects consists of many protective mechanisms. Their exoskeleton acts as a physical barrier against the pathogens. Their intestinal tract is lined by a chitin layer that checks the admittance of pathogens ingested along with food. The salivary secretion has lysozyme enzyme that breaks down the “cell wall of bacteria”. The immune cells of insects are called as hemocytes. These hemocytes destroy the pathogens by phagocytosis. Some hemocytes discharge “antimicrobial peptides” into the blood circulation and kill the pathogen by destroying their outer membrane.

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. Which of these is not part of insect immunity?(A) enzyme activation of pathogen-killingchemicals(B) activation of natural killer cells(C) phagocytosis by hemocytes(D) production of antimicrobial peptides
1) Ahh! COVID Zombies are attacking us and we have to run for our lives! This means our _________ is activated. Group of answer choices Sympathetic nervous system Parasympathetic nervous system Endocrine system Immune system   2)  ou walked into your little sister’s room and it smelled strongly of marijuana smoke. You noticed it right away. After a few minutes, though, you stopped noticing the smell. This best illustrates: Group of answer choices Priming Transduction Schemas Sensory adaptation
1) The immune system and the brain are (two correct answers) :  unrelated to one another  strictly connected  communicate through biological pathways including inflammation    2) How would you define the relationship between the immune system and the brain?  a) Unidirectional (the immune system does not influence the brain)  b) Unidirectional (the brain influences the immune system but only in case of severe physical diseases like cancer)  c) bidirectional (they influence each other)
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