osmosis

What is the difference between osmosis and diffusion?

• Osmosis is the movement of any type of particles, while diffusion specifically refers to the diffusion of water.

• Osmosis refers to the diffusion of water, while diffusion refers to the movement of any type of particles.

• Osmosis and diffusion are the same processes with no differences.

• Osmosis occurs only in plants, while diffusion occurs in animals.

What is a hypotonic solution?

• A solution with a higher concentration of solutes than the inside of the cell, causing water to leave the cell.

• A solution with an equal concentration of solutes as the inside of the cell, resulting in no net movement of water.

• A solution with a lower concentration of solutes compared to the inside of the cell, leading to water entering the cell.

• A solution that contains no solutes, making it pure water.

What is an isotonic solution?

• A solution with a higher concentration of solutes outside the cell than inside.

• A solution where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.

• A solution that causes cells to swell due to water influx.

• A solution that has no effect on cell volume.

What is the significance of osmosis in the human body?

• Osmosis is crucial for maintaining fluid balance in cells and tissues, affecting hydration and nutrient absorption.

• Osmosis is the process of breaking down food in the stomach.

• Osmosis helps in the production of hormones in the pancreas.

• Osmosis is responsible for the movement of oxygen in the bloodstream.

What is passive transport?

• The movement of substances across a cell membrane using energy.

• The movement of substances across a cell membrane without the use of energy, including diffusion and osmosis.

• The process of actively pumping substances against their concentration gradient.

• The movement of substances only through active transport mechanisms.

What is a semi-permeable membrane?

• A barrier that allows all molecules to pass through without restriction.

• A barrier that allows certain molecules to pass through while blocking others.

• A solid wall that prevents any molecules from passing through.

• A flexible membrane that can change its permeability based on temperature.

What is active transport?

• The movement of substances with their concentration gradient, requiring no energy.

• The movement of substances against their concentration gradient, requiring energy.

• The passive movement of water across a membrane.

• The process of diffusion of gases in the lungs.

How does temperature affect the rate of osmosis?

• Higher temperatures decrease the kinetic energy of water molecules, leading to a slower rate of osmosis.

• Higher temperatures increase the kinetic energy of water molecules, leading to a faster rate of osmosis.

• Temperature has no effect on the rate of osmosis.

• Lower temperatures increase the rate of osmosis by slowing down water molecule movement.

What is the role of osmosis in plant cells?

• Osmosis helps maintain turgor pressure in plant cells, keeping them rigid and upright.

• Osmosis allows nutrients to be absorbed from the soil into the roots.

• Osmosis is responsible for photosynthesis in plant cells.

• Osmosis prevents water loss during transpiration.

What happens to cells in a hypotonic solution?

• Cells will shrink due to water loss.

• Cells will swell and may burst due to the influx of water.

• Cells will remain unchanged in size.

• Cells will become rigid and lose their flexibility.