The Nernst equation specifies the equilibrium potential for a particular ion. This equilibrium potential is a function of _____
A) hydrostatic pressure
B) ion concentration gradient
C) osmotic gradient
D) temperature (thermal) gradient
E) the ion concentration gradient and the temperature (thermal) gradient
Answer: B
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Insects are most closely related to:
A. mites. B. ticks. C. millipedes. D. lobsters. E. crustaceans.
Vasoconstriction is a term that refers to the contraction of muscle in the walls of the blood vessels, thus causing the diameter of the blood vessel to decrease. Which one of the following types of muscle would be involved in this contraction?
A) skeletal B) smooth C) cardiac D) both cardiac and smooth E) both skeletal and smooth
Answer the following questions true (T) or false (F)
1. Proteins are not oxidized by aerobic respiration. 2. Only plants can carry out photosynthesis. 3. Oxygen is required to carry out photosynthesis.
In a vertebrate with a four-chambered heart, the structure(s) containing blood with the highest O2 concentration is/are the ________.
A. inferior vena cava B. pulmonary veins C. right atrium D. right ventricle E. pulmonary arteries