Plasma Membrane
What type of macromolecule is the plasma membrane made of?
Lipids/Phospholipids
Does passive transport require energy?
No.
Osmosis is the movement of ________ from high concentration to low concentration.
Water.
Active transport requires _________ or ATP.
Energy
Why are plasma membranes also called the "phospholipid bilayer"?
There are two layers of phospholipids.
This organelle synthesizes, folds, and transports proteins.
What is the rough endoplasmic reticulum?
Which is one type of passive transport?
Osmosis, Diffusion, or Facilitated Diffusion
Isotonic
What is the process by which a vesicle transports particles or molecules from within the cell to the cell membrane, where it fuses with the membrane and deposits its contents outside of the cell?
Exocytosis
What does fluid mosaic model mean?
The proteins are the mosaic and create a unique pattern in the membrane which is always shifting like fluid.
This organelle produces ATP through cellular respiration.
What are mitochondria?
Diffusion is the movement of __________ across a membrane.
Molecules
Which osmotic solution has a higher solute concentration outside the cell than inside?
Hypertonic solution
What is the process by which a cell membrane engulfs particles or molecules outside the cell and pinches around it to form a vesicle molecules outside the cell and pinches around it to form a vesicle that carries the material into the cell?
Endocytosis
What are the three components of the plasma membrane?
Phospholipids, Proteins, Carbohydrates
What is the nucleus?
What kind of macromolecule helps in facilitated diffusion?
Channel proteins
Which osmotic solution has a higher solute concentration inside the cell than outside?
Hypotonic Solution
Provide an example of active transport.
Protein pumps that move molecules against the concentration gradient.
Why are plasma membranes considered selectively permeable?
They allow some substances through the membrane and others not to pass through.
This organelle modifies, sorts, and packages proteins and lipids; forms vesicles and lysosomes.
What is the golgi Apparatus?
Explain passive transport.
The movement of substances from high concentrations to low concentrations without the addition of energy.
Provide an example of osmosis.
Water rushing out of a grape when put in saltwater.
What is an ion pump?
A special protein that moves ions (charged molecules) across the membrane