2more questionsss ! dats it !
1. Which statement is TRUE?
a. A cell placed in an isotomic solution will swell.
b. A cell placed in a hypotonic solution will swell.
c. A cell placed in a hypotonic solution will shrink.
d. A cell placed in a hypertonic soluction will remain the same size.
e. A cell placed in a hypotonic solution will remain the same size.
2. Which statement is true?
a. The movement of solvent occurs from a hypotonic solution to an isotonic solution.
b. The net movement from an isotonic to a hypotonic solution involves the movement of solute molecules only.
c. The concentration of the solute is greater in an isotonic solution than in a hypertonic solution.
d. The concentration of the solvent is greater in a hypertonic solution than in an isotonic solutions.
e. Osmosis involves only hypertonic solutions.
You have made no choices. We do not DO the work for you, but HELP. In order to do that, you need to ask questions about what you do not understand.
Have you used GOOGLE to research each option, for example?
Sra
1. In order to determine which statement is true, we need to understand the concepts of isotonic, hypotonic, and hypertonic solutions and their effects on cells.
a. An isotonic solution has the same concentration of solutes as the cell's cytoplasm. When a cell is placed in an isotonic solution, there is no net movement of water across the cell membrane, and thus the cell will remain the same size. Therefore, this statement is incorrect.
b. A hypotonic solution has a lower concentration of solutes compared to the cell's cytoplasm. When a cell is placed in a hypotonic solution, water molecules move from the solution into the cell in an attempt to equalize the concentration of solutes. This causes the cell to swell or potentially burst. Therefore, this statement is true.
c. This statement is the opposite of statement b and is incorrect. When a cell is placed in a hypotonic solution, it will not shrink but rather swell.
d. A hypertonic solution has a higher concentration of solutes compared to the cell's cytoplasm. When a cell is placed in a hypertonic solution, water molecules move from the cell into the solution, resulting in the cell shrinking. Therefore, this statement is also incorrect.
e. This statement contradicts statement b and is incorrect. When a cell is placed in a hypotonic solution, it will not remain the same size but rather it will swell.
Therefore, the correct answer is b. A cell placed in a hypotonic solution will swell.
2. To determine which statement is true, let's explore the concept of osmosis and the movement of solvents and solutes.
a. Osmosis is the movement of solvent (usually water) from an area of lower solute concentration to an area of higher solute concentration across a selectively permeable membrane. In this case, the solvent (water) moves from the hypotonic solution (lower solute concentration) to the isotonic solution (higher solute concentration). Therefore, this statement is incorrect.
b. This statement suggests that the net movement from an isotonic to a hypotonic solution involves the movement of solute molecules only, which is incorrect. The net movement of water (solvent) also occurs along with the movement of solute molecules. Therefore, this statement is false.
c. The concentration of the solute in an isotonic solution is equal to the concentration of the solute in a hypertonic solution. Therefore, this statement is incorrect.
d. This statement correctly states that the concentration of the solvent (water) is greater in a hypertonic solution compared to an isotonic solution. In hypertonic solutions, water moves out of the solution due to the higher solute concentration. Therefore, this statement is true.
e. This statement suggests that osmosis involves only hypertonic solutions, which is false. Osmosis can occur between hypotonic, isotonic, and hypertonic solutions. Therefore, this statement is incorrect.
Therefore, the correct answer is d. The concentration of the solvent is greater in a hypertonic solution than in an isotonic solution.