Organelles
What organelle is found in both prokaryotic and eukaryotic cells?
plasma membrane
The ________________ is composed of phospholipids and cholesterol that is made in the SER.
plasma membrane
Proteins that are located on the inner and outer surface are called _________________.
peripheral membrane proteins
Passive movement of water along a concentration gradient is called ________________.
osmosis
The separation of the cell membrane from the cell wall is called _______________________.
plasmolysis
Specialized structures within a living cell are known as
organelles
Which 2 organelles are responsible for energy synthesis
mitochondria and chloroplasts
__________________ proteins extend all the way through the cell membrane.
Transmembrane
What type of molecules can easily move across a plasma membrane?
small hydrophobic
Junctions that connect the cytoplasm of two cells are termed ___________________ junctions.
gap
Chromatin is composed of ________________ and _____________.
proteins and DNA
The ______________ is much larger in plant cells than animal cells.
vacuole
True of false?
Integral proteins are firmly bound to the membrane.
TRUE
For facilitated diffusion to take place, a ________________ is required.
transmembrane protein
Gates on ion channels are closed until ________________ binds to the receptor.
ligand
Ribosomal RNA is synthesized where?
nucleolus
The _______________ are an essential part of the framework of the cytoskeleton.
microtubules
ABC transporters require __________ to move large ions and molecules.
ATP
Carrier proteins are also called ___________________.
transporters
Cells that are physically close to one another a signaling molecule on one cell may combine with a ______________ on another cell.
receptor
The _________________________ is attached to the nuclear envelope and is studded with ribosomes.
RER
In the plasma membrane the tails are __________________ and face inside the membrane, and the heads are ______________ and come in contact with the cell cytosol and environment.
hydrophobic, hydrophillic
Sodium Potassium pumps help to maintain a separation of charges across the plasma membrane which is called the _________________.
membrane potential
A __________________ is a molecule that binds to a receptor.
ligand
What are the steps in cell signaling?
signal transmission, reception, signal transduction and response