Osmosis Review of Video

What is the primary reason for salting roads during winter?

• To lower the freezing point of water and prevent icing

• To attract wildlife

• To increase the freezing point of water

• To make the roads look white

What is the main effect of hurricanes dumping salty ocean water into soil?

• It makes the soil more suitable for agriculture

• It increases soil fertility

• It has no significant effect

• It can eventually kill plants, including trees

What does osmosis involve?

• The movement of water without a membrane

• The movement of solutes through a semi-permeable membrane

• The active transport of water molecules

• The movement of water through a semi-permeable membrane

In osmosis, where do water molecules tend to move?

• From areas of low water concentration to high water concentration

• From areas of low solute concentration to high solute concentration

• From areas of high water concentration to low water concentration

• From areas of high solute concentration to low solute concentration

What happens to the water level in a U-tube experiment when salt is added to one side?

• The water level decreases on the side with salt

• The water level remains the same on both sides

• The water level increases on the side without salt

• The water level increases on the side with salt

What term is used to describe a solution with a higher solute concentration compared to another?

• Hypotonic

• Isotonic

• Hypertonic

• Equitonic

Why is pure water not used in IVs?

• Because it is too expensive

• Because it can cause dehydration

• Because it is less effective than saline solutions

• Because it can cause cells to swell and possibly burst

Why can't saltwater fish live in freshwater tanks?

• Because it would cause water to move into their cells, potentially killing them

• Because freshwater lacks nutrients

• Because they are not adapted to the pH of freshwater

• Because the water temperature is different

What is turgor pressure?

• The pressure exerted by solutes in plant cells

• The pressure exerted by water inside plant cells against the cell wall

• The pressure needed to prevent osmosis

• The atmospheric pressure affecting plant growth

What is the significance of osmosis in living organisms?

• It involves the movement of one of our valuable resources: water

• It is responsible for generating energy in cells

• It is the only way cells can communicate

• It is the primary method of nutrient transport