Chapter #8 Test: Cell Organelles and Transport

Front

What are the three types of passive transport?

Back

Osmosis, Diffusion, Facilitated diffusion.

Front

What happens to a red blood cell in a hypotonic solution?

Back

The red blood cell swells and may burst.

Front

What are the two parts of a phospholipid called?

Back

Hydrophilic Head and Hydrophobic Tail.

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment.

Front

What type of cells are humans made up of?

Back

Humans are made up of eukaryotic cells.

Front

Define osmosis.

Back

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

Front

What is diffusion?

Back

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

Front

What role do transport proteins play in facilitated diffusion?

Back

Transport proteins help move substances across the cell membrane without using energy.

Front

What is the difference between hydrophilic and hydrophobic?

Back

Hydrophilic substances are attracted to water, while hydrophobic substances repel water.

Front

What is the significance of the phospholipid bilayer in cell membranes?

Back

The phospholipid bilayer forms the fundamental structure of cell membranes, providing a barrier that separates the interior of the cell from the external environment.