Chapter 7&8- Metabolism And Growth Flashcards
Why are proteins significant to the cells?
They are workers or tools and activities take place because of them
What are proteins made of?
Amino acids
What determines the properties of a protein?
Exact type, quantity, and sequence of amino acids
What determines a protein’s function?
The form of the protein
What is metabolism?
Any chemical or physical reaction
What is the difference between anabolism and catabolism?
Anabolism= binds and synthesizes
Catabolism= breaks it down
Why are enzymes considered biological catalysts?
They speed up biological reactions
What is an enzyme substrate?
A substance that attaches itself to an enzyme’s active site
What is an enzyme’s active site?
Groove-like pocket that interacts with the substrate
How does the “lock and key” analogy work?
The shape of the substrate must fit into the active site.
What are cofactors?
Organic molecule or metal ions
Why do we require vitamins in our diet?
Our bodies enzymes need them to function
What is the function of an enzyme regulatory site?
Interact and bind with regulatory molecules that turn the active site on or off
What is a metabolic pathway?
A pathway that hands a multi-series step. Each step is catalyzed by an enzyme.
What is a pacemaker?
They set the rate of a pathway’s progression