Cell Membrane Homeostasis

Define 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

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.

• fight bacteria and viruses that enter the cell.

• provide rigid support and protection to the cell.

• make sure each cell can move

What is another term for "selectively permeable"?

• porous

• completely permeable

• permanent

• semipermeable

Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?

• E

• B

• C

• D

What is embedded in the phospholipid bilayer?

• proteins

• salt

• water

This is a balance that organisms maintain through self-regulating adjustments

• bilayer

• homeostasis

• secretions

Tags

NGSS.HS-LS1-3

Hypertonic solutions...

• water moves from hypotonic to hypertonic

• water moves from hypertonic to hypotonic

Most of the cell membrane is made of...

• Lipids

• Carbohydrates

• Proteins

• Nucleic acids

True or false:  Some things are not allowed to enter the cell at all. 

• True

• False

True or False:  Regulating what enters and leaves the cell helps the cell maintain homeostasis. 

• True

• False

Tags

NGSS.HS-LS1-3