Proteins Flashcards
What is Protein?
Proteins are the building blocks of life. They are made up of long chains of molecules or natural polymers.
What is protein made up of?
Proteins are made up of polymers which is made up of amino acids (monomers).
What is peptide bond.
The bond between two different amino acids.
What is catalytic function?
Nearly all reactions in living organisms are catalyzed by proteins functioning as enzymes. Without these catalysts, biological reactions would proceed much more slowly.
What is structural function?
In animals structural materials other than inorganic components of the skeleton are proteins, such as collagen
What is a protective function?
Antibodies are proteins that protect the body from disease by combining with and destroying viruses, bacteria, and other foreign substances. Another protective function is blood clotting, carried out by thrombin and fibrinogen.
What is a regulatory function?
Body processes regulated by proteins includes the growth (growth hormone) and thyroid functions (thyrotropin).
What is a nerve impulse transmission?
Some proteins act as receptors for small molecules that transmit impulses across the synapses that separate nerve cells (e.g., Rhodesian in vision).
What is a movement function?
The proteins actin and myosin are important in muscle activity, regulating the contraction of muscle fibers.
What is a primary structure of a protein?
The primary structure of a protein is the linear sequence of the side chains that are connected to the protein backbone.
What is a secondary structure of a protein?
A secondary bonding is when there is hydrogen bonding in the protein which causes the chains to fold and align to produce orderly patterns called secondary structures.
What is a tertiary structure of a protein?
The tertiary structure of a protein refers to the bending and folding of the protein into a specific three-dimensional shape and these structures results from four types of interactions between the R side chains of the amino acids residues.
What is a Quaternary structure in a protein?
A Quaternary structure is a large structure of protein when there is two or more polypeptide chains held together by specific R groups and the sub-unit arrangements form a large structure of protein.
What are the four levels of protein structure.
Primary, Secondary, Tertiary and Quaternary.
What is the levels of structure that involves hydrogen bonding?
Secondary, Tertiary and Quaternary.
