Elodea & salt water Demo, CER lesson

Multiple Choice

Why is osmosis important for living organisms?

• It helps maintain cell shape and function by regulating water balance.

• It allows cells to produce energy directly from water.

• It prevents all substances from entering or leaving the cell.

• It only occurs in plant cells, not animal cells.

Open Ended

The cell membrane regulates what enters and what leaves the cell. It also provides protection and support to the cell. Why is this regulation crucial for the survival of the cell?

Multiple Choice

What is the main function of the lipid bilayer in the cell membrane?

• To give the membrane a flexible structure and form a barrier

• To produce energy for the cell

• To store genetic information

• To transport oxygen across the membrane

Multiple Select

Which of the following statements about osmosis are correct?

• Osmosis involves the movement of water across a membrane.

• Water moves from an area of high concentration to low concentration during osmosis.

• Osmosis requires energy from the cell.

• Osmosis is important for maintaining cell homeostasis.

Multiple Choice

What could happen to a cell if it cannot regulate its water content?

• It could rupture and die.

• It could become more efficient.

• It could grow larger without limit.

• It could turn into a different type of cell.

Multiple Choice

What is the main function of osmosis in cells?

• To move water from areas of high concentration to low concentration

• To move proteins across the membrane

• To transport carbohydrates

• To produce energy for the cell