How do proteins act as buffers in the blood?
A) They draw water into the capillaries.
B) They speed up a chemical reaction.
C) They minimize any changes in the acid-base balance.
D) They protect your body from foreign invaders.
ANS: C
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_____ vaccines are live mutants that have lost their pathogenicity while retaining immunogenicity and provide more natural protection.
Fill in the blank(s) with the appropriate word(s).
If a serving of tuna contains 1 gram fat, 0 carbohydrates and contains 69 calories, how many grams of protein are in one serving?
a. 15 b. 30 c. 44 d. 60
What is the normal value for oxygen saturation in arterial blood gas?
A. 95% or higher B. between 90% and 92% C. 87% or lower D. between 57% and 59% E. 19.1% or lower
Which of the following elements is found in both bleach and stomach acid (though in two different forms)?
A) magnesium B) phosphorus C) chlorine D) zinc