Question

a cell is placed in a hypertonic solution. which is true at the instant the cell is put into the solution (before any shrinking or swelling)? (pick all correct options) the concentration of water is lower in the solution net flow of water will be out of the cell the concentration of solutes is higher in the cell question 7 1 pts increasing the number of unsaturated phospholipids in a plasma membrane will cause the fluidity to: increase decrease question 8 1 pts a reaction that splits molecules by adding water is called a: dehydration reaction hydrolysis reaction

Explanation:

• For the first question, in a hypertonic solution, the solute concentration outside is higher than in the cell. So water moves out of the cell by osmosis. The concentration of water is lower in the solution and higher in the cell at the start.
• For the second question, unsaturated phospholipids have kinks in their tails, preventing them from packing tightly together, thus increasing membrane fluidity.
• For the third question, a hydrolysis reaction splits molecules by adding water, while a dehydration reaction removes water to form bonds.

Answer:

• Question 1: the concentration of water is lower in the solution, net flow of water will be out of the cell, the concentration of solutes is higher in the cell
• Question 7: increase
• Question 8: hydrolysis reaction