9,500 ml of fluid is absorbed from the digestive tract daily. The ultimate source of most of this fluid is
a. food and fluid ingested during meals.
b. stored within secretory cells of the digestive tract.
c. the plasma.
d. the accessory digestive organs.
e. metabolic water.
C
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Chromosomes are pulled by spindle fibers to opposite sides of the cell during:
a. interphase b. prophase c. anaphase d. telophase
The gallbladder ________.
A. breaks down red blood cells B. is attached to the pancreas C. produces bile D. produces secretin E. stores bile
Which of the following statements concerning the electron-transport chain is true?
A. Water serves as the final electron acceptor. B. The chemiosmosis model refers to movement of water. C. Chemiosmosis forms carbon dioxide. D. Hydrogen ions are pumped across the plasma membrane. E. Electrons pass from one electron carrier to another in the electron transport chain.
In the elastic arteries, which of the tunics have elastic fibers?
A. Tunica intima B. Tunica externa C. Tunica media and tunica externa D. Tunica media E. Tunica media, tunica intima, and tunica externa