The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "B"?
A. major site of ATP synthesis when oxygen is available
B. contains digestive enzymes
C. site of protein synthesis
D. directs cellular activities, contains DNA
E. outer boundary of cell, controls entry and exit of substances
A
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Blood is correctly classified as a(n)
A. organ. B. tissue. C. organ system. D. intracellular fluid.
Which is FALSE about the equilibrium potential of a given ion across a membrane?
A. It is a function of the concentration of that ion on both sides of the membrane. B. It is the potential at which there is no net movement of that ion across the membrane. C. It is the potential difference across the membrane at which an electric force favoring movement of the ion in one direction is equal in magnitude and opposite in direction to the diffusion force provided by the concentration difference of the ion across the membrane. D. A permeable ion will move in the direction that will tend to bring the membrane potential toward that ion's equilibrium potential. E. An anion that is in higher concentration inside the cell than outside the cell will have a negative eqilibrium potential.
____________________ is the study of homeostatic chemical adjustments and other activities accomplished by hormones
Fill in the blank(s) with correct word
The pulmonary circulation does not directly serve the metabolic needs of body tissues
Indicate whether the statement is true or false