RJC SYBT Sem IV Unit I 403: Host-Parasite Relationship and Normal Flora

Frequency of hand washing and hygienic practices

Comparing the properties of germ-free animals with those of normal animals

By inhaling microorganisms from the environment

<p>Using antimicrobial agents</p> Signup and view all the answers

<p>Microbes from various sources in the surroundings</p> Signup and view all the answers

<p>Hormonal activity</p> Signup and view all the answers

<p>Animals reared in a microbially controlled environment</p> Signup and view all the answers

<p>Because they are only exposed to selected microorganisms</p> Signup and view all the answers

<p>Poorly developed immune systems and high susceptibility to infectious pathogens</p> Signup and view all the answers

<p>It increases the requirement for Vitamin B</p> Signup and view all the answers

<p>To determine the ability of microbes to produce disease or cause immunological changes in the animal</p> Signup and view all the answers

<p>To control their exposure to specific microorganisms</p> Signup and view all the answers

<p>High levels of Vitamin K</p> Signup and view all the answers

<p>More unique organisms in their microbiota, low immunity, high susceptibility to infectious pathogens.</p> Signup and view all the answers

<p>The effects of normal flora on gastrointestinal health.</p> Signup and view all the answers

<p>By swallowing or inhaling microorganisms during birth</p> Signup and view all the answers

<p>They cause fluctuations in the composition of normal flora</p> Signup and view all the answers

<p>To prevent the colonization of experimental animals by microbes for comparison with normal animals</p> Signup and view all the answers

<p>Inhalation of air contaminated with microorganisms</p> Signup and view all the answers

<p>Higher susceptibility to diseases and infections</p> Signup and view all the answers

<p>Owing to factors such as diet, hormonal activity, and general health conditions</p> Signup and view all the answers

<p>To prevent the acquisition of harmful pathogens from the environment</p> Signup and view all the answers

<p>To demonstrate the impact of a single microbial species on animal growth and development</p> Signup and view all the answers

<p>Thin intestinal walls</p> Signup and view all the answers

<p>They have reduced requirement for Vitamin K</p> Signup and view all the answers

<p>Gnotobiotic animals are exposed to only specific microorganisms, while germ-free animals are not exposed to any microbes</p> Signup and view all the answers

<p>Because they are only exposed to specific microorganisms that researchers choose</p> Signup and view all the answers

<p>The effects of normal flora on the host can be inferred from these comparisons</p> Signup and view all the answers

<p>Using germfree animals inoculated with a known species to determine its effects</p> Signup and view all the answers

<p>Requirement for Vitamin K</p> Signup and view all the answers

<p>Animals exposed to only specific known strains of bacteria and other microorganisms.</p> Signup and view all the answers