Osmosis Practice BIOLOGY

E

If the volume of a cell increases when it is placed in a solution, that solution is said to be _____________ to the cell. A. hypertonic B. subatomic C. isotonic D. gin and tonic E. hypotonic

B

If you soak your hands in dishwater, you may notice that your skin absorbs water and swells into distinct wrinkles. This is because your skin cells are __________ to the __________ dishwater. A. hypotonic, hypertonic B. hypertonic, hypotonic C. hypotonic, hypotonic D. isotonic, hypotonic E. hypertonic, isotonic

B

In osmosis, water always moves toward the ____________ solution: that is, toward the solution within the _________ solute concentration. A. isotonic, greater B. hypertonic, greater C. hypertonic, lesser D. hypotonic, greater E. hypotonic, lesser

A, B, D

Movement from HIGH to LOW concentration: A. simple passive diffusion B. facilitated diffusion C. active transport D. water with regards to the water concentration gradient during osmosis E. water with regard to the solute concentration gradient during osmosis

C, E

Movement from LOW to HIGH concentration: A. simple passive diffusion B. facilitated diffusion C. active transport D. water with regards to the water concentration gradient during osmosis E. water with regard to the solute concentration gradient during osmosis

A

The concentration in a red blood cell is about 2%. Sucrose cannot pass through the membrane, but water and urea can. Osmosis would cause red blood cells to shrink the most when immersed in which of the following solutions? A. a hypertonic sucrose solution B. a hypotonic sucrose solution C. a hypertonic urea solution D. a hypotonic urea solution E. pure water

A

You decide to buy a new fish for your freshwater awuarium. Whne you introduce the fish into its new tank, the fish swells up and dies. You later learn that it was a fish from the ocean. The most likely explanation is that unfortunate fish went from a(n) ___________ solution to a(n) ______________ solution. A. isotonic, hypotonic B. hypertonic, isotonic C. hypotonic, hypertonic D. hypotonic, isotonic

D

You know that this cell is in a(n) __________ solution because it __________. (small arrow towards the cell and big arrow away from the cell; indicates water movement) A. hypotonic, is turgid B. hypotonic, lysed C. hypertonic, lysed D. hypertonic, lost water E. hypertonic, gained water

Sea water is dangerous to drink because

sea water is hypertonic to your body tissues and drinking it will cause you to lose water by osmosis