Egg Osmosis Lab Review

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 used each day

• The mass of the egg

• The amount of liquid in the cup

• 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

Select two constant variables from 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

The egg mass changed very little when placed in water. Why?

• No solute went in or out

• It must be close to an isotonic solution

• Water cannot cross in and out of the egg

Which type of transport was demonstrated throughout this lab?

• Passive Transport

• Active Transport