9th Cell Membranes & Transport

Front

What is Passive Transport?

Back

The movement of particles with the concentration gradient, meaning from an area of higher concentration to an area of lower concentration without the use of energy.

Front

What happens to a cell in a Hypotonic solution?

Back

The cell expands in size and may burst (lyse) due to the influx of water.

Front

What is the structure of the cell membrane?

Back

The cell membrane is composed of a phospholipid bilayer, which consists of two layers of phospholipids.

Front

What does ISO mean in biological terms?

Back

ISO means 'equal', often used to describe solutions with equal concentrations of solutes.

Front

What is the primary function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

What is a Hypertonic solution?

Back

A solution that has a higher concentration of solutes compared to the inside of the cell, causing the cell to lose water.

Front

Define Diffusion.

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What are the components of the phospholipid bilayer?

Back

The phospholipid bilayer consists of hydrophilic (water-attracting) heads and hydrophobic (water-repelling) tails.

Front

What role do proteins play in the cell membrane?

Back

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