diffusion osmosis & active transport revision - Edexcel IGCSE

Osmosis is the diffusion of water across a _________ _________ membrane.

(a)  

What will happen if an animal cell is placed in a very salty solution?

• Stay the same

• Shrink- get smaller

• Swell- get bigger

In a solution, salt is considered the _______.

• solvent

• solute

• solution

The movement of molecules against a concentration gradient (using energy)

• simple diffusion

• osmosis

• active transport

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-2

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck

What does a cell need in order to transport particles by active transport? Select all correct answers.

• A concentration gradient

• Permeable membrane

• Energy

• Channels

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

What could happen to a plant cell if it loses too much water?

• plasmolysis

• crenation

• lysis

What will happen if a plant cell is placed in a very dilute solution?

• Stay the same

• Shrink- get smaller

• Swell- get bigger