AP Bio Water Potential Questions

Front

What is the main role of water in biological systems?

Back

Water is the main solvent of life since many different types of substances can dissolve within it.

Front

What is the solute potential of pure, distilled water?

Back

0

Front

What happens to a blood cell placed in an isotonic solution?

Back

Water moves equally in and out of the cell.

Front

How does an increase in solute concentration affect water potential?

Back

It decreases water potential.

Front

What is the formula for calculating water potential?

Back

Water potential = Solute potential + Pressure potential.

Front

If a solution has a solute potential of -2.5 bars and a pressure potential of 0.9 bars, what is its water potential?

Back

-1.6 bars.

Front

Define solute potential.

Back

Solute potential is the measure of the tendency of water to move into a solution due to the presence of solute.

Front

What is pressure potential in the context of water potential?

Back

Pressure potential is the physical pressure on a solution, which can affect its water potential.

Front

What is the relationship between water potential and osmosis?

Back

Water moves from areas of higher water potential to areas of lower water potential during osmosis.

Front

What does it mean for a solution to be hypertonic?

Back

A hypertonic solution has a higher solute concentration compared to another solution, leading to water moving out of cells placed in it.