There are two solutions separated by a semipermeable membrane. Solution a is 0.2 M NaCl and solution b is 0.1 M CaCl2. Will there be a net flow of water across the membrane? Why or why not?
What will be an ideal response?
In osmoles, solution a is 0.4 OsM and solution b is 0.3 OsM. Solution a is hyperosmotic, so there will be a net flow of water into solution a until equilibrium is established.
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Describe the structure and function of cilia and flagella. Be sure to include the following in your answer : basal body, doublets, triplets, dynein, fused, unfused, and "9+2."
What will be an ideal response?
Which type of joint is found only in the thumb?
a. saddle b. hinge c. condyloid d. pivot
Which of the following is not true of organelles?
A. They are only in cells of humans. B. They are composed of aggregates of large molecules. C. They are found in many types of cells. D. They carry on specific activities.