Unit 6.2 Cell Transport (Passive)

What substance moves across cell membranes by osmosis?

Diffusion happens ​ (a)   the concentration gradient.

• Along
• Against

Tags

NGSS.MS-LS1-2

What does it mean for a solution to be isotonic?

• Solution is more pure

• Solution is less pure

• Solution is the same purity

Which of the following is true?

• Diffusion requires energy 

• Diffusion does not require energy

________________ regulates what enters and leaves a cell.

• Cell membrane

• Nucleus

• Mitochondria

• Cytoplasm

Tags

NGSS.MS-LS1-2

Match the following descriptions with the correct term related to cell membranes.

• Allows all substances to pass through.

• permeable

• Not flexible or adaptable.

• Unpliable

• Does not allow any substances to pass through.

• semipermeable.

• Allows certain substances through while not others.

• Non-permeable

Match the following scenarios with the type of solution.

• A cell remains the same size.

• Hypertonic

• A cell shrinks as water leaves.

• Hypotonic

• A cell swells as water enters.

• Isotonic

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

What type of diffusion is occurring in this diagram?

Simple or Facilitated ?

Tags

NGSS.MS-LS1-2

Label the Solvent, the Solute, and the solution on the diagram provided.

a

b

c

d

water

Solvent

Solution

Solute

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.