Passive Transport

When the number of water molecules outside of the cell is greater than inside the cell, which will most likely occur?

• Molecules of water will NOT MOVE either way.

• Molecules of water will move OUT of the cell.

• Molecules of water will move INTO the cell.

• Molecules of water will EVAPORATE.

Tags

NGSS.MS-LS1-2

Cell membranes are described as selectively permeable.

Four students were asked to explain what this means. Which one is correct?

• Student 1: Cell membranes prevent all materials from entering the cell.

• Student 2: Cell membranes only provide structural support for the cell.

• Student 3: Cell membranes regulate which substances can enter and exit the cell.

• Student 4: Cell membranes allow water and water-soluble substances to enter the cell.

Tags

NGSS.MS-LS1-2

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

Tags

NGSS.MS-PS1-4

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

Tags

NGSS.MS-LS1-1

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Tags

NGSS.MS-LS2-1

Equilibrium?

• a large  amount of substance on  side of the cell and a small amount on the other side
• a small  amount of substance on  side of the cell and a large amount on the otherside
• equal amount of substance on either side of the membrane  
• no particles on either side of the a cell membrane

Tags

NGSS.MS-LS1-2

Passive Transport means

• Energy is used

• No energy is used

• Energy is created

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-2

What are three types of passive transport

• Transport proteins, Endocytosis, Exocytosis
• None of the ones listed
• Osmosis, Diffusion, Facilitated diffusion 
• Touchdown, interception, football

Which type of transport requires an input of energy?

• Passive Transport
• Osmosis
• Simple Diffusion
• Active Transport