Osmosis

Question 1

What is the percentage change in mass used to measure?

Answer 1

It is used to measure the effect of osmosis on plant cells or tissues.

Question 2

What materials are mentioned for the osmosis investigation?

Answer 2

Potato chips and different concentrations of salt solution.

Question 3

How can you calculate the percentage change in mass?

Answer 3

Use the formula: ((final mass - initial mass) / initial mass) x 100.

Question 4

What is osmosis?

Answer 4

The movement of water molecules through a partially permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Question 5

Fill in the blank: The practical to investigate osmosis involves using potato cylinders in _______.

Answer 5

different concentrations of salt solution.

Question 6

True or False: Osmosis only occurs in plant cells.

Answer 6

False.

Question 7

What is the primary objective of the practical investigation of osmosis?

Answer 7

To observe the effects of varying salt concentrations on potato chips.

Question 8

List the steps involved in a practical to investigate osmosis.

Answer 8

• Prepare different concentrations of salt solution
• Cut potato to equal size
• Measure initial mass of potato chips
• Immerse potato in salt solutions
• After a set time, measure final mass
• Calculate percentage change in mass.