Transport Mechanisms

What is diffusion?

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

Where is there a high concentration of water?

• in the flower
• cannot be determined by picture.
• in the vase
• in the leaves

Tags

NGSS.HS-ESS2-5

When a person smells something, what is actually traveling up their nose?

• solids 
• molecules 
• matter
• plasma 

Tags

NGSS.MS-LS1-8

NGSS.MS-PS1-1

Osmosis

• diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
• the diffusion of particles from an area of high concentration to an area of low concentration
• diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
• the diffusion of particles from an area of low concentration to an area of high concentration

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Tags

NGSS.HS-LS1-3

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

Permeable means

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

What a cell needs to transport particles by active transport?

• Sun
• Wind
• Energy
• Channels

Tags

NGSS.HS-LS2-3

HYPO means...

• Low
• High
• Equal
• Fat