Cell Membranes

ATP is a form of energy used in...

• Passive Transport

• Active Transport

When molecules are even on either side of a semipermeable membrane, the solution is considered...

• isotonic

• hypotonic

• hypertonic

• 

Tags

NGSS.MS-LS1-2

Osmosis is... (choose the BEST response)

• the movement of water across a membrane

• the movement of water across a membrane through either facilitated diffusion or simple/passive diffusion

• water moving

• cytoplasm

The difference between osmosis and diffusion is that

• diffusion is passive transport, whereas osmosis is active transport

• only in diffusion do molecules move from areas of high concentration to areas of low concentration

• osmosis is the opposite of diffusion and only involves the movement of water

• osmosis refers specifically to the movement of water, whereas diffusion refers to the movement of any type of molecules

Osmosis is a form of ______________. 

• Passive Transport

• Active Transport

Define cell (plasma) membrane

• lipid that helps minimize effects of temperature

• only on the outer surface of the plasma membrane and are attached to proteins or lipids; form distinctive cellular markers

• flexible boundary of a cell that separates a cell from its surroundings

• may extend partway into the plasma membrane, cross the membrane entirely, or be loosely attached to its inside or outside face

Which type of biological macromolecule is the main component of the plasma membrane?

• carbohydrate

• lipid

• protein

• nucleic acid

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHOBIC?

• the phosphate "head"

• the lipid "tails"

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHILIC?

• the phosphate "head"

• the lipid "tails"

Where can carbohydrates be found when part of a plasma membrane?

• On the outside of the membrane

• On the inside of the membrane

• Embedded part of the way into the membrane

• Embedded the whole way through the membrane

• All of the above