Question

2) When you are in a classroom setting and your classmates and instructor are emitting millions of bacteria and viruses into the air… a) They are quickly filtered out by the classroom’s air handling system and filters and do not pose a threat to others in the classroom b) The light in the UV spectrum quickly inactivates any viable bacteria or viruses in the air c) The bacteria and viruses are on particles that are quite dense and quickly settle to the floor where they cannot be inhaled d) Can easily be inhaled by others in the classroom, but most are trapped on mucous membranes and swallowed where they are killed in the acid of the stomach e) The bacteria and viruses emitted are those that cannot attach to their host because they are dead and therefore pose little threat to anyone of they are inhaled

Answer 1

Answer: Option B

Step-by-step explanation:

The bacteria and viruses in the class that is being released from classmates ans instructor is enough to cause disease but it is killed before it causes disease in the body.

This is so because the human body has immune system that consists of various mechanism that helps in killing the harmful pathogens.

The microbes present in the air is inhaled and the mucous membrane in the nasal passage swallow the pathogens and they are killed in the acidic environment.

The environment inside the stomach is highly acidic which does not allows the sustainability of the pathogen inside the body.