Which one of the following is NOT true of cholesterol?
A) Cholesterol provides energy fuel for muscle contraction.
B) Cholesterol serves as the structural basis of steroid hormones.
C) Cholesterol serves as the structural basis of vitamin D.
D) Cholesterol is a major building block of plasma membranes.
E) Only about 15 percent of cholesterol comes from the diet.
A
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When the force is applied between the resistance and the fulcrum, the result is a ________ lever.
A. first-class B. third-class C. second-class
Name the German physician who developed postulates that provided the framework for germ theory
What will be an ideal response?
Organic acids will contain ________.
A. a carboxyl group B. a hydroxyl group C. an amino group D. a carbonyl group
An adult patient is brought into the emergency room of a local hospital. The EMTs report the patient lost about 300 cc (cubic centimeters or milliliters) of blood. Is this life-threatening?
A. No; most adults have more than 7 liters of blood so a loss of 300 cc would not be life threatening B. Yes; 300 cc represents about 1/6 of the body's total blood volume of 2 liters C. Yes; 300 cc represents about 1/3 of the blood's volume D. No; most adults have 4-6 liters of blood so a loss of 300 cc would not be life threatening