Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

29 Cards in this Set

  • Front
  • Back
A design where proteins "float" in a lipid bilayer
fluid mosaic model
What are the properties of the "head" of the lipid
Contains phosphorus, electrically charged, hydrophilic
What are the properties of the "tail" of a lipid.
Long, nonpolar, fatty acid, hydrophobic
What kind of macromolecule is cholesterol.
How do hibernating animals change their membranes?
They replace saturated fats with unsaturated fats
Proteins imbedded in the bilayer
integral membrane proteins
Proteins without hydrophobic regions
Peripheral membrane proteins
Proteins that potrude on both sides of the membrane.
transmembrane proteins
What are two ways that the proteins in a membrane can be restricted?
cytoskeleton and lipid rafts
What is the funciton of carbohydrates on the membrane?
recognition site for other celss and molecules
What two processes allow cells to arrange themselves in groups?
cell recognition and cell adhesion
The binding of cells in a tissue, the same kinds of molecules sticking out of the cells bind to eachother
Binding between cells with different types of proteins.
When cells contribute material to additional membrane structures that help cement them together.
cell junctions
Junctions thatseal tissues and prevent leaks.
Tight junctions
What are three types of specialized cell junctions?
tight, desmosomes and gap
Hold adjacent cells firmly together.
Facilitate communication between cells.
gap junctions
What is the difference between active and passive transport
active transportation involves the input of chemical energy
Channels that allow water into a cell rapidly.
Facilitate diffusion by transporting polar molecules
carrier proteins
Transporter protein that moves a single solute in one direction.
Transporter protein that moves two solutes in one direction.
Transporter protein that moves two solutes in opposite directions.
When a vesicle pinches off the plasma membrane and enters the cell
When vsicles fuse with the plasma membrane and release their contents.
What are the three kinds of endocytosis?
phagocytosis, pinocytosis, and receptor-mediated endocytosis
Cellular eating
cellular drinking