Cell Transport Flashcardizz

Front

What is the main function of the cell membrane?

Back

The cell membrane controls what substances may enter or leave the cell, helping to maintain homeostasis.

Front

What are the main components of the cell membrane?

Back

The cell membrane is primarily made up of a lipid bilayer, proteins, and carbohydrates.

Front

What does 'semi-permeable' mean in relation to the cell membrane?

Back

A semi-permeable membrane allows certain materials to pass through while blocking others.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a semi-permeable membrane.

Front

What is active transport?

Back

Active transport is the movement of molecules against their concentration gradient, requiring energy (ATP).

Front

How do diffusion and osmosis differ?

Back

Diffusion refers to the movement of any molecules, while osmosis specifically refers to the movement of water.

Front

What is the role of proteins in the cell membrane?

Back

Proteins in the cell membrane help transport substances, act as receptors, and provide structural support.

Front

What is the difference between high concentration and low concentration?

Back

High concentration means a large number of particles in a given volume, while low concentration means fewer particles in the same volume.

Front

What is equilibrium in the context of cell transport?

Back

Equilibrium is the state where the concentration of molecules is equal on both sides of the membrane.