Osmosis and Diffusion

What is an example of diffusion?

• The spreading of perfume in a room.

• The movement of water through a semipermeable membrane.

• The process of photosynthesis in plants.

• The circulation of blood in the human body.

Why is osmosis important for cells?

• It helps maintain cell turgor pressure, which is essential for plant structure and function.

• It allows cells to divide more rapidly during growth.

• It increases the temperature of the cell, enhancing metabolic reactions.

• It prevents the cell from absorbing nutrients effectively.

What happens to a cell in a hypertonic solution?

• The cell gains water and swells due to lower solute concentration outside.

• The cell loses water and may shrivel due to higher solute concentration outside.

• The cell remains unchanged as the solute concentration is balanced.

• The cell bursts due to excessive water intake.

What is osmosis?

• The movement of water from an area of low concentration to an area of high concentration across a semi-permeable membrane.

• The movement of water from an area of high concentration to an area of low concentration across a semi-permeable membrane.

• The process of diffusion of solutes across a semi-permeable membrane.

• The movement of water in and out of cells without any concentration gradient.

What does permeable mean?

• Permeable means that things can pass through.

• Permeable means that things cannot pass through.

• Permeable means that things are solid and unyielding.

• Permeable means that things are liquid and flowing.

What is the difference between osmosis and diffusion?

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

• Osmosis is a type of diffusion that occurs only in gases.

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

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

What is a semi-permeable membrane?

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

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

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

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

What is the role of energy in active transport?

• Energy is required in active transport to move substances against their concentration gradient.

• Energy is not needed in active transport.

• Energy is used to increase the temperature of the substances being transported.

• Energy is only required for passive transport.

What is passive transport?

• Passive transport is the movement of substances across a membrane without the need for energy, following the concentration gradient.

• Passive transport requires energy to move substances against the concentration gradient.

• Passive transport is the active movement of substances through a membrane using cellular energy.

• Passive transport involves the use of transport proteins to move substances across the membrane.

What is an example of osmosis?

• A plant's roots absorb water from the soil.

• A fish breathing underwater.

• A person sweating on a hot day.

• A tree growing taller in the sunlight.