Question 1 (0.5 points) Question 1 Saved If a cell is placed in a large volume o
ID: 714260 • Letter: Q
Question
Question 1 (0.5 points) Question 1 Saved If a cell is placed in a large volume of hypotonic solution, which of the following statements would be correct? Question 1 options: The concentration of the solution around the cell is greater than the concentration of the solution inside the cell. The concentration of the solution inside the cell is less than the concentration of the solution around the cell. The cell will swell. The net movement of water will be out of the cell. Question 2 (0.5 points) Question 2 Saved A membrane that allows some, but not all, substances to cross it is best described as: Question 2 options: nonpermeable permeable semipermeable impermeable Question 3 (0.5 points) Question 3 Saved If a drop of food coloring is placed in water, the coloring will disperse uniformly throughout the solution by way of: Question 3 options: surface tension diffusion osmosis osmotic pressure Question 4 (0.5 points) Question 4 Saved Hemolysis may occur when a blood cell is placed into Question 4 options: a) isotonic solution. b) hypertonic solution. c) hypotonic solution. Question 5 (0.5 points) Question 5 Saved Diffusion of a substance across the cell membrane is influenced by all of the following, except Question 5 options: a) ATP. b) presence of membrane channels. c) charge of the substance. d) concentration gradient. e) lipid solubility. Question 6 (0.5 points) Question 6 Unsaved Diffusion is an important process in life functions because: Question 6 options: it moves molecules without the expense of cellular energy. the process operates independent of concentration gradients. it can move any molecule through any semipermeable membrane. the process applies only to the movement of water in a biological system Question 7 (0.5 points) Question 7 Unsaved The plasma membrane is a: Question 7 options: rigid network of carbohydrate molecules. semipermeable barrier that controls what can enter and leave the cell. protein bilayer bilayer of ionic compounds. Question 8 (0.5 points) Question 8 Unsaved Osmosis refers to the movement of water across a cell membrane by active transport. Question 8 options: True False Question 9 (0.5 points) Question 9 Unsaved Osmotic pressure refers to the: Question 9 options: attraction between opposite electrical charges in a solution. force being applied to a solution by an external pump. strength of the plasma membrane. force or pressure exerted by water moving by osmosis. Question 10 (0.5 points) Question 10 Unsaved Red blood cell shrinkage is called __________, and cell bursting is called ___________. Question 10 options: a) crenation; hemolysis c) hypotonic; isotonic d) isotonic; hypotonic e) isotonic; hypertonic
Explanation / Answer
1. The net movement of water will be out of the cell.
2. Semipermeable.
3. Diffusion.
4. Hypotonic.
5. charge of the substance
6. it moves molecules without the expense of cellular energy.
7. semipermeable barrier that controls what can enter and leave the cell.
8. False
9. force or pressure exerted by water moving by osmosis
10.crenation; hemolysis