Osmosis & Diffusion Review - v2

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration until they are evenly distributed.

Front

What is osmosis?

Back

Osmosis is a specific type of diffusion that involves the movement of water molecules through a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What does it mean for a solution to be isotonic?

Back

An isotonic solution has the same concentration of solute as the inside of a cell, resulting in no net movement of water into or out of the cell.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, the concentration of solute outside the cell is higher than inside, causing water to move out of the cell, leading it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, the concentration of solute outside the cell is lower than inside, causing water to move into the cell, leading it to swell and potentially burst.

Front

What is the role of a semi-permeable membrane in osmosis?

Back

A semi-permeable membrane allows certain molecules, like water, to pass through while blocking others, facilitating the process of osmosis.

Front

Can diffusion occur in solids, liquids, and gases?

Back

Yes, diffusion can occur in solids, liquids, and gases, but it happens fastest in gases due to the greater space between molecules.

Front

What is an example of diffusion in everyday life?

Back

An example of diffusion is the smell of perfume spreading in a room after it is sprayed.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the energy and movement of molecules, leading to a faster rate of diffusion.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, including processes like diffusion and osmosis.