Which of the following statements regarding plasma cholesterol concentration and the development of atherosclerosis is correct?
A. It is preferable to have a high concentration of low-density lipoproteins (LDLs) in the plasma because LDLs operate to remove cholesterol from the peripheral tissues and carry it to the liver, which secretes it into the small intestine.
B. It is preferable to have a high concentration of high-density lipoproteins (HDLs) in the plasma because HDLs operate to remove cholesterol from the peripheral tissues and carry it to the liver, which secretes it into the small intestine.
C. It is preferable to have equal concentrations of LDL and HDL.
D. Neither LDL nor HDL are involved in cholesterol regulation.
E. Plasma cholesterol concentration has no relationship to atherosclerosis.
B
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Given the following forces acting at a given point across the capillary wall, _______ will occur with a net ______ pressure of ____ mm Hg. - capillary blood pressure = 32 mm Hg - blood osmotic pressure = 23 mm Hg - interstitial fluid hydrostatic pressure = 1 mm Hg - interstitial fluid osmotic pressure = 0 mm Hg
a. Ultrafiltration, outward, 8 b. Ultrafiltration, outward, 10 c. Ultrafiltration, outward, 56 d. Reabsorption, inward, 24 e. Reabsorption, inward, 10
What occurs during the period of interphase known as the S phase?
A) DNA replication (synthesis) takes place. B) Genetic material is divided between the daughter cells. C) The cell is rapidly synthesizing proteins. D) Proteins, organelles, and cytosol are divided between the daughter cells.
The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the
A) perineurium. B) epineurium. C) endoneurium. D) epimysium. E) endosteum.
Which of the following is NOT a disaccharide?
A. Lactose B. Sucrose C. Maltose D. Galactose