More than 95 percent of the protein in a red blood cell is
A) albumin.
B) porphyrin.
C) hemoglobin.
D) immunoglobulin.
E) fibrinogen.
Answer: C
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Which are functions performed by the fibrous skeleton of the heart?
a: Separates the atria and ventricles b: Anchors the heart valves c: Provides electrical insulation between the atria and ventricles d: Provides the framework for the attachment of the myocardium e: None of these are true functions of the fibrous skeleton of the heart A. a, d B. b, d C. a, c, d D. a, b, c, d E. e
An optic track carries information from
a. the lateral half of one retina and the medial half of the other retina b. the lateral halves of both retinas c. the medial halves of both retinas d. an entire retina of one eye e. half of the retina of one eye and the entire retina of the other eye
The greatest percentage of Na+ reabsorption takes place in the
a. proximal tubule b. loop of Henle c. distal tubule d. collecting tubule e. renal pelvis
Which type of bone contains an interior framework of spongy bone sandwiched between two layers of compact bone?
a. Flat bone b. Long bone