1.9 Cell Membrane

I can identify and explain the function of the cell membrane and how it functions.

• YES, I have read this I CAN statement.

• No, I have not read this I CAN statement.

What is the definition of 'cell membrane'?

• A thin, semi-permeable phospholipid bilayer around a cell; regulates what enters and leaves the cell.

• A rigid structure that provides support and protection to the cell.

• A fluid-filled organelle that stores nutrients and waste products.

• A network of protein filaments that helps the cell maintain its shape.

Tags

S7L2

What does 'semi-permeable' mean?

• Allows some materials (not all) to pass through.

• Allows all materials to pass through.

• Does not allow any materials to pass through.

• Allows only liquids to pass through.

Tags

S7L2

Explain 'semi-permeable phospholipid bilayer'.

• A cell membrane structure composed of two layers of phospholipid molecules, where only certain substances can pass through.

• A rigid structure found in plant cells that provides support and protection.

• A single layer of lipids that allows all substances to pass freely.

• A protein layer that completely blocks the passage of all substances.

Tags

S7L2

What does 'hydrophobic' mean?

• Water fearing.

• Water loving.

• Neutral to water.

• Absorbs water.

Tags

S7L2

Define 'hydrophilic'.

• Water loving.

• Water repelling.

• Oil loving.

• Air absorbing.

Tags

S7L2

Define 'homeostasis'.

• A process by which organisms maintain a relatively stable internal environment. (internal balance).

• A process by which organisms convert light energy into chemical energy.

• A process by which organisms break down food to release energy.

• A process by which organisms grow and develop over time.

Tags

S7L2

I can identify and explain the how Passive Transport works.

• YES, I have read this I CAN statement.

• No, I have not read this I CAN statement.

What is 'diffusion'?

• Movement of molecules from an area of higher concentration to an area of lower concentration.

• Movement of molecules from an area of lower concentration to an area of higher concentration.

• Movement of molecules in a circular motion.

• Movement of molecules that requires energy input.

Tags

S7L2

Define 'osmosis'.

• Diffusion of water through a selectively permeable membrane.

• Movement of solutes from a region of higher concentration to a region of lower concentration.

• Active transport of molecules against a concentration gradient.

• Exchange of gases across a respiratory surface.

Tags

S7L2