Enzymes
What are Enzymes
biological catalysts
what is a biological catalyst
A type of protein, globular shape that alters the rate of a chemical reaction without being used.
Which functions does an enzyme have?
Anabolic(build up) and catabolic(break down)
How are the protein structures called?
Primary, secondary, tertiary, quaternary
what is the primary structure of a protein
the sequence of amino acids
what is the secondary structure?
2D folding based on the order of primary structure
what is the tertiary structure
The specific 3D shape (including the active sites of enzymes) which is determined by the secondary structure
what is the quaternary structure
extra molecules are added which help the function of the protein
What is mRna
messenger Rna
substrates?what do they do?
must collide with sufficient energy
substrates must collide with sufficient energy to:
•React
•change arrangements of their atoms (to products)
•release energy
what do enzymes do to activation energy?
they lower it
what would happen if enzymes didn't exist?
reactions would proceed too slowly to sustain life.
what are metabolic pathways?
a series of chemical reactions that start with a substrate and finish with an end product.