Unit 3 Concepts

Question 1

Osmotic Pressure

Answer 1

Question 2

cytolysis

Answer 2

In hypotonic solution when Water moves from the solution to inside the cell and cell swells and bursts open.

Question 3

Plasmolysis

Answer 3

In Hypertonic Solution when Water moves from inside the cell into the solution: Cell shrinks

Question 4

Dynamic Equilibrium

Answer 4

In Isotonic Solution when Water moves equally in both directions and the cell remains the same size!

Question 5

What type of solution are in these cells? See Image

Answer 5

See Image

Question 6

Turgor Pressure

Answer 6

Bacteria and plants have cell walls that prevent them from over-expanding. In plants the pressure exerted on the cell wall is called turgor pressure.

Question 7

What keeps animal cells isotonic?

Answer 7

The kidneys by removing excess salt and water.

Question 8

What do cell membranes do?

Answer 8

Provide Protection

Control what enters and exits to create homeostasis

Question 9

What is a lipid bilayer?

Answer 9

two layers of phospholipids

Question 10

In the fluid mosaic model what is constantly moving in the cell membrane?

Answer 10

phospholipids, cholesterol, proteins, etc. are constantly moving in the cell membrane

Question 11

Turgor Pressure

Answer 11

pressure exerted on the cell wall