Enzymes Flashcards
What is energy and its two forms
Energy is the capacity to do work
-potential: stored energy
-kinetic: energy of motion
What is a calorie?
The amount of heat required to raise the temperature of 1 gram of water 1 degree Celsius
Laws of energy
Law 1: energy cannot be created or destroyed
Law 2: energy cannot be changed without a loss of unstable energy
The degree of disorder or disorganization is referred to as ?
Entropy
What is ATP?
ATP (adenosine triphosphate) is the energy currency of cells
- used to drive nearly all cellular activities
-nucleotide
3 parts of atp
-sugar ribose
-adenine
-phosphate groups
Chemical reactions are linked together in series to form….
Metabolic pathways
Substrates
(or reactants) are the chemicals that enter the metabolic pathway
What are enzymes?
Protein molecules that function as organic catalyst to speed up a chemical reaction
What is the active site?
The part of the enzyme where a substrate binds like a key in a lock
What occurs when an active enzyme is prevented from binding to a substrate by an inhibitor
Enzyme inhibition
What is used to control metabolic pathways
Feedback inhibition
What is the energy needed to cause a molecule to react with another molecule is called
Energy of activation
