Cellular Organelles Membrane Structure & Function Osmosis & Diffusion Membrane Transport Surprise Me! 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt
Organelle where ATP is produced
What is mitochondria
Organelle that contains enzymes to break down old molecules
What is a lysosome
Proteins are made here
What are ribosomes
The packaging the distribution center of the cell
What is golgi apparatus
Large membrane- bound storage space for water, waste products or food
What is a vacuole
The cell membrane is ______, which allows only certain things to come in and out of the cell
What is semi-permeable
Name 3 functions of membrane proteins
What is transport, cell adhesion, cell identity, receptor, channels
These molecules are embedded in the membrane and can act as channels for certain substances to pass into the cell
What are membrane proteins
The cell membrane is made of a bilayer of _____ that have a hydrophilic head and hydrophobic tail
What are phospholipids
The membrane will allow these molecules to pass directly through the bilayer
What is small, non-polar molecules
The movement of water across a membrane from high concentration to low concentration
What is osmosis
As a result of diffusion and osmosis, the tonicity of the system becomes
What is isotonic (it reaches equilibrium)
What would happen to a cell placed in a hypotonic environment?
What is the cell would swell (water will move into the cell)
Osmosis and diffusion require no energy because
What is it is moving from an area of high concentration to low concentration
When a cell is in an isotonic environment, are the solutes still moving across the membrane? If so, how?
Yes, they are moving back and forth equally
The movement of particles across the membrane against the concentration gradient
What is active transport
The movement of solutes down the concentration gradient with the aid of a transport protein
What is facilitated diffusion
These molecules would have to move through the membrane by facilitated diffusion because they cannot pass directly through the bilayer
What are polar molecules
A cell can get rid of very large molecules through
What is exocytosis
Can be thought of as “cell eating”
What is phagocytosis
The cell theory basically states that
What is all living things are made of cells, cells are the basic unit of life, and cells come from other cells
The process of taking large particles into the cell by means of infoldings, or pockets, of the cell membrane
What is Endocytosis
The phospholipid bilayer is called amphipathic because
What is has both polar (heads) and nonpolar (tails) components
The meshlike network of protein fibers that support the shape of the cell
What is the cytoskeleton
Trace the pathway of a protein from first being made to being broken down after use
The DNA in the nucleus gives the instructions for how to make the protein. That message is taken to the ribosome where the protein is assembled. The protein then makes its way through the endoplasmic reticulum where it is modified and then taken to the golgi apparatus where it is packaged and sent to where it needs to be. After it is used, the protein can be broken down by a lysosome.