Cell Boundaries

What is endocytosis?

• Not charged

• This is the number of molecules or particles in a substance

• When the cell membrane takes in materials into the cell which causes the cell membrane to fold around the existing substance

• This occurs when some materials are able to pass through

What is the fatty acid chain?

• A molecule that acts as an ID tag on the cell membrane

• Part of the phospholipid tail

• Part of a phospholipid that is nonpolar

• This is a molecule that assists substances in passing through the cell membrane.

What is selectively permeable?

• This occurs when some materials are able to pass through

• Phospholipids in a cell membrane are organized in this manner.

• This is when the molecules move across the cell membrane and doesn’t use any energy

• A molecule that acts as an ID tag on the cell membrane

Tags

NGSS.HS-LS2-3

What is tail to tail?

• Part of the phospholipid tail

• Phospholipids in a cell membrane are organized in this manner.

• This is when the molecules move across the cell membrane and doesn’t use any energy

• When the other solution being compared with having the same or equal solute concentration as the cell

What is passive transport?

• This is when the molecules move across the cell membrane and doesn’t use any energy

• A molecule that acts as an ID tag on the cell membrane

• Parts of a cell membrane include: Cholesterol, proteins, and carbohydrates

• This molecule assists in reinforcing the cell

What are the 3 parts of the cell membrane?

• Carbohydrates, proteins, hypotonic

• Proteins, isotonic, cell membranes

• Cholesterol, hypertonic, isotonic

• Cholesterol, proteins, and carbohydrates

What is the cell membrane?

• A movable boundary that separates the cell from the outside world.

• This molecule assists in reinforcing the cell

• Part of a phospholipid that is nonpolar

• This is the number of molecules or particles in a substance

Tags

NGSS.MS-LS1-2

What is cholesterol?

• This is a molecule that assists substances in passing through the cell membrane. 

• A molecule that acts as an ID tag on the cell membrane

• Part of the phospholipid tail

• This molecule assists in reinforcing the cell

What is exocytosis?

• Cholesterol, proteins, and carbohydrates

• It happens when the membrane of a vacuole surrounding material merges with the cell membrane and the contents are forced out. 

• This is a molecule that assists substances in passing through the cell membrane. 

• This is a molecule that assists substances in passing through the cell membrane. 

Which part of the phospholipid molecule is hydrophobic?

• phosphate head

• glycerol

• fatty acid tail

• the entire molecule is hydrophobic