Unit 3: Cell Transport & Homeostasis

How does a cell maintain homeostasis?

• Regulates what enters and leaves the cell
• Flexibility
• Protective barrier
• Structure and support

Tags

NGSS.HS-LS1-3

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

Which of the following is NOT part of the cell membrane?

• Lipids
• Carbs (there are some carbs to keep the phospholipids from sticking together)
• Proteins
• Nucleic Acids

Lipid heads are...

• Polar
• Nonpolar

Lipid heads are...

• Hydrophobic
• Hydrophilic

How many layers is the lipid bilayer?

• 1
• 2
• 3
• 4

What type of transport is shown in the picture?

• Osmosis
• Diffusion
• Endocytosis
• Exocytosis

The cell below is in a _________ solution.

• Hypotonic
• Hypertonic
• Isotonic

Tags

NGSS.HS-LS1-3

The cell below is in a _____________ solution.

• Hypertonic
• Hypotonic
• Isotonic

Tags

NGSS.HS-LS1-3

The cell below is in a ___________ solution.

• Hypotonic
• Hypertonic
• Isotonic

Tags

NGSS.MS-LS1-2