Cell Transport

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower solute concentration compared to the inside of the cell, causing water to enter the cell and potentially leading to lysis (bursting).

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move molecules, such as glucose, across the cell membrane without the use of energy.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, relying on concentration gradients.

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 equilibrium is reached.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher solute concentration outside the cell compared to the inside, causing water to leave the cell and potentially leading to crenation (shrinking).

Front

What role do transport proteins play in facilitated diffusion?

Back

Transport proteins assist in the movement of specific molecules across the cell membrane, allowing substances that cannot directly diffuse through the lipid bilayer to enter or exit the cell.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink or crenate.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, which can cause the cell to swell and potentially burst.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.