Cell Transport

Which type of passive transport focuses on the movement of water through the membrane?

• Facilitated diffusion

• Osmosis

• Diffusion

• Active

What term describes a solution that has the same solute concentration inside of and outside of the cell?

• Hypertonic

• Hypotonic

• Isotonic

• Mesotonic

The cell plasmolyzed, which means it was placed in a ____ solution.

• Isotonic

• Hypertonic

• Hypotonic

• Equilibrium

In which case would a cell most likely shrink?

• when placed in a solution containing a high salt concentration
• when placed in a warm solution

• when placed in a solution containing a low pH
• when placed in a solution containing distilled water

Tags

NGSS.HS-LS1-3

A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?

• Water moved into the lettuce cells by active transport.
• Water moved into the lettuce cells by osmosis.
• Salt moved into the lettuce cells by diffusion.
• Water moved out of the lettuce cells by osmosis.

Tags

NGSS.MS-LS2-1

What part of the cell regulates what can enter and leave the cell?  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

Students are observing particles moving against the concentration gradient in a lab investigation. Which type of transport are they observing?

• osmosis

• active transport

• facilitated diffusion

• diffusion

This picture shows molecules of red dye that have moved. What is this type of movement called?

• Osmosis; the water molecules are moving from high concentration to low

• Diffusion; the dye molecules are moving from low to high concentration

• Diffusion; the dye molecules are moving from high to low concentration.

• Facilitated diffusion; because the molecules are moving through a protein channel.

The cell membrane is responsible for allowing molecules to diffuse through a protein channel, from high concentration to low concentration. What type of transport is this?

• simple diffusion

• active transport

• facilitated diffusion

• osmosis

This picture is a representation of what type of transport?

• Osmosis because it is diffusing through a protein from an area of high concentration to low concentration.

• Facilitated diffusion because it is diffusing through a protein from an area of high concentration to low concentration.

• Facilitated diffusion because it is diffusing through a protein from an area of low concentration to high concentration.

• Simple diffusion because it is diffusing through a protein from an area of high concentration to low concentration.