Membrane Transport & Tonicity

Which is true about active transport?

• It requires energy
• it does not require energy
• It moves substances down/with the concentration gradient

• it moves material from high to low concentration

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium

What type of transport is represented by figure "B" 

• Active Transport
• Facilitated Diffusion 
• Protein Transport 
• Osmosis 

O₂ and CO₂ would pass through the cell membrane using this method?

• Simple Diffusion
• Facilitated Diffusion
• Carrier Protein/ Pumping
• Vesicles

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

Why is diffusion and osmosis important to cells?

• It allows them to take in materials without using energy.
• It allows them to reproduce.
• It allows them to absorb sunlight.
• It allows cells to use all energy.

Tags

NGSS.HS-LS1-3

This picture represents what type of cell transport?

• endocytosis
• exocytosis
• osmosis
• passive transport

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• provide rigid support and protection to the cell.
• make sure each cell can move

Tags

NGSS.HS-LS1-3

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids