Question

question 16 1 pts diffusion of particles through a membrane by means of a carrier molecule is called: pinocytosis. osmosis. facilitated diffusion. dialysis. question 17 1 pts during which stage of mitosis do the centrioles move to the opposite poles of the cell? prophase metaphase anaphase telophase question 18 1 pts a saline solution that contains a higher concentration of salt than a red blood cell would be: isotonic. hypotonic. hypertonic. hydrostatic.

Explanation:

• Question 16: Facilitated diffusion uses carrier - molecules to help particles cross the membrane. Pinocytosis is cell - drinking, osmosis is the diffusion of water, and dialysis is a separation technique.
• Question 17: In prophase of mitosis, centrioles move to opposite poles of the cell to organize the spindle fibers. In metaphase, chromosomes line up at the equator, in anaphase, sister chromatids separate, and in telophase, the cell begins to divide into two.
• Question 18: A hypertonic solution has a higher solute (salt) concentration compared to the red - blood cell. An isotonic solution has the same concentration, a hypotonic solution has a lower concentration, and hydrostatic refers to fluid pressure.

Answer:

• Question 16: C. facilitated diffusion
• Question 17: A. Prophase
• Question 18: C. hypertonic