Question

Which of the following describes the most likely impact that exposure to pollutants in the atmosphere would have on one’s personal health?

It would trigger cell-mediated immune responses.

It would lead to upper respiratory infections and pneumonia.

It would increase the release of histamine by plasma cells.

It would decrease one’s ability to produce antibodies.

Answer 1

@MlaFlesh

Answer 2

It would lead to upper respiratory infections and pneumonia.

Answer 3

A researcher is interested in finding out if the amount of amylase, a digestive enzyme responsible for digesting starch, varies from person to person. Which of the following would be the best way to test this?

Take saliva samples from a number of people, half of whom have just eaten a cracker and half who have just eaten a piece of cheese, and analyze the amount of amylase in each.

Take samples of chyme from the stomachs of a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.

Take saliva samples from a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.

Take samples of chyme from the stomachs of a number of people, half of whom have just eaten a cracker and half who have just eaten a piece of cheese, and analyze the amount of amylase in each.
@MlaFlesh

Answer 4

Take saliva samples from a number of people, half of whom have just eaten a cracker and half who have just eaten a piece of cheese, and analyze the amount of amylase in each.