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EE Chapter 17 Immunology&Immunizations Q&A (1 OF 60) Sample Questions

1. Which is not considered as a physiological barrier to body surfaces?

A. Skin
B. Mucus membrane
C. Tears
D. Gastric secretions
E. Salivary amylase

Ans: E

Tips: Salivary amylase breaks down starch to carbohydrates. Gastric secretions provide hostile environment to many microorganisms.

Strategic thinking:
1. Read the question.
2. In Immunolgy Chapter, questions will obviously be about protection provided naturally by the body. Still, you can apply looking for cues and keywords. Cue is Physiological and the keyword is barrier. From all the given options, only option E doesn’t share protective function as is the rest.
3. Thus, the correct answer is E.
(Refer to Misbah’s EE Flashcards to help you memorize concepts from this chapter as this requires largely memorization.)

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