Which of the following statements best defines the term isotonic?
a. Solutions on either side of a membrane with a greater concentration
b. Solutions on either side of a membrane with a lesser concentration
c. Solutions on either side of a membrane with an equal concentration
d. Solutions on either side of a membrane with an unequal concentration
Answer: c. Solutions on either side of a membrane with an equal concentration
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Which of the following pairs of terms are opposites?
A. plantar flexion - dorsiflexion B. abduction - extension C. inversion - retraction D. pronation - rotation E. elevation - protraction
Which of the choices below is NOT a mechanism of heat transfer used by the body?
A) shivering B) evaporation C) conduction/convection D) radiation
When a small, polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane, the process is known as
A. simple diffusion. B. channel-mediated diffusion. C. carrier-mediated diffusion. D. endocytosis. E. active transport.
Small amounts of a polypeptide or glycoprotein hormone may cause ________.
A. the priming effect B. increased numbers of receptors placed in the plasma membrane C. upregulation of receptors D. All of the choices are correct.