Cell Membrane and Transport

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is passive transport?

Back

Passive transport is the movement of particles across a membrane from an area of high concentration to an area of low concentration without the use of energy.

Front

How does water move into plant root cells?

Back

Water moves into plant root cells by osmosis, where the concentration of water is higher in the soil than in the root cells.

Front

What type of transport is osmosis classified as?

Back

Osmosis is classified as passive transport.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.

Front

Define selectively permeable membrane.

Back

A selectively permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

What is the role of solute concentration in osmosis?

Back

The solute concentration gradient drives the movement of water during osmosis, with water moving towards the area of higher solute concentration.

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.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What are transport proteins?

Back

Transport proteins are proteins that assist in the movement of substances across a cell membrane.