Cell Transport

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that allows molecules to cross membranes with the assistance of special proteins called channel proteins.

Front

What type of transport is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport.

Front

What does isotonic mean in terms of solute concentration?

Back

Isotonic refers to a solution where the concentration of solutes is the same on both sides of a membrane.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell engulfs material from its environment, bringing it into the cell.

Front

What is the difference between simple diffusion and facilitated diffusion?

Back

Simple diffusion is the movement of molecules across a membrane without the help of proteins, while facilitated diffusion requires channel proteins to assist in the movement.

Front

What is passive transport?

Back

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

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy, often in the form of ATP.

Front

What role do channel proteins play in cell transport?

Back

Channel proteins facilitate the movement of specific molecules across the cell membrane during facilitated diffusion.

Front

What is the Na/K pump?

Back

The Na/K pump is a type of active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell, maintaining the cell's electrochemical gradient.

Front

What is the difference between hypertonic and hypotonic solutions?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, while a hypotonic solution has a lower concentration of solutes.