Chapter 3 Sec 2 osmosis, diffusion, input/output, genetics

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concenteraion gradient

Tags

NGSS.MS-PS1-2

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-2

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

During osmosis

• water moves from low to high concentration

• water moves from high to low concentration

• solute particles move from high to low concentration

• solute particles move from low to high concentration

Permeable means

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

The diffusion of water through a semi-permeable membrane is called?

• Osmosis
• Cell wall
• Diffusion
• Respiration

Tags

NGSS.MS-LS1-3

I perfume is sprayed in the centre of a room, where is there a low concentration of perfume?

• in the bottle
• in the centre

• the edges of the room

• the from of the room

When concentration is the same everywhere, _________ is reached.

• Osmosis
• Diffusion
• Equilibrium
• Permeability

A person would never have pure water put into their veins in a hospital because their cells would...

• Shrink/Dehydrate
• Expand

Tags

NGSS.HS-LS1-3