Osmosis Egg Lab

What caused the eggs to gain or lose mass?

• Water going into or out of the egg

• Solutes going into or out of the egg

What is the special name for water crossing in and out of a cell?

• Simple diffusion

• Facilitated Diffusion

• Active Transport

• Osmosis

What was the independent variable in this lab?

• The type of liquid placed in the cup on Day 2. (sugar or water)

• The mass of the egg

• The amount of liquid in the cups

• The cup we were using

What was the dependent variable in this lab?

• The type of liquid used each day

• The mass of the egg

• The amount of liquid in the cup

• The cup we were using

The egg would gain mass if placed in a ____________ solution

• Hypertonic

• Hypotonic

• Isotonic

• Osmotonic

The egg lost mass in the corn syrup. This means that corn syrup is a ____________ solution

• Hypertonic

• Hypotonic

• Isotonic

• Osmotonic

Which type of transport was demonstrated throughout this lab?

• Passive Transport

• Active Transport

The egg represents a giant ________, now that the shell has been dissolved by vinegar (acetic acid).

• bacterium
• cell
• bubble
• organelle

The egg membrane allows some substance to pass through, while blocking others.  This means it is ________________ .

• mesh screen
• semi-permeable
• pliable
• flexible

Which way will the water move by osmosis in this situation?

• into the cell
• out of the cell
• won't move