Which of the following contains overlapping thick and thin myofilaments?
A. A band
B. M line
C. Z discs
D. H band
E. I band
Answer: A
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Amine hormones:
a. are derived from amino acids b. are always hydrophilic c. area always hydrophobic d. are derived from cholesterol e. are also known as steroids
Predict which way exercise would shift the oxygen-hemoglobin dissociation curve. Would this shift in the curve increase or decrease hemoglobin saturation?
A. The curve would shift to the right thus decreasing the hemoglobin saturation. B. The curve would shift to the right thus increasing the hemoglobin saturation. C. The curve would shift to the left thus increasing the hemoglobin saturation. D. The curve would shift to the left thus decreasing the hemoglobin saturation.
What specialized feature of an epithelium consists of a reticular lamina, a lamina densa, and a lamina lucida?
A. Microfilament B. Desmosome C. Fenestrated membrane D. Basement membrane E. Plasma membrane
Choose the process below that does NOT describe a function of water-soluble vitamins and their derivatives.
A. Acting as cofactors for enzymes B. Intestinal absorption of calcium and phosphate C. Serving as coenzymes in metabolism of carbohydrates, lipids, and proteins D. Forming hydrogen carriers NAD and FAD