6. Metabolic Pathways Flashcards
Metabolic pathways, enzymes and reaction rates
What is a catabolic reaction?
breaks substances down
What is an anabolic reaction?
Builds up a substance
What is an enzyme?
A biological catalyst which speeds up chemical reactions in the cell
Which part of the enzyme does a substrate bind?
Active Site
What is a competitive inhibitor?
Substances that competes with the substrate for the enzyme’s active site
What is a non-competitive inhibitor?
Substance which binds to enzyme somewhere other than the active site?
Which type of inhibitor can be overcome by increasing substrate concentration?
Competitive inhibitor
What term is used to describe the regulation of an enzyme by its own product?
End product feedback inhibition
What is meant by optimum condition?
The environmental condition in which peak enzyme activity is reached
Which factors can effect enzyme activity?
Temperature, pH, inhibitors and substrate concentration
