UNIT 5 & 8: TEST REVIEW 2 Flashcards
What happens to enzyme if pH goes too high or too low.
If pH is too low (acidic), enzyme will gain H+ ions and enzyme shape will be disrupted and DENATURE
If pH is too high (too basic), enzyme will lose H+ ions and lose its active shape and DENATURE
What happens when temperature is too high or too low? How does temperature affect enzyme activity?
Chemical reaction is speeded up as temp is raised
As temp increases, more molecules have enough Kinetic energy to undergo reaction and speed up reaction. However, until the optimum temperature is reached. After optimum temp is reached, ENZYMES SHAPE/MOLECULES IS DISRUPTED—> DENATUREEEE
As temp decreases the enzymes will denture cuz they cannot fold—shaken apart
How does salinity affect enzyme activity?
If salt concentration is close to zero (TOO LOW), the amino acid chains will attract each other and denature.
If salt concentration is too high, interaction of charge groups will be blocked, new attraction will occur, and will denature
What happens to an enzyme if there is increase substrate molecules?
Reaction speeds up and there is more collision
What is VMAX, what is the other word for it?
- saturation
maximum rate at which an enzyme is catalyzed when the enzyme is saturated by the substrate.
—Substrate can no longer speed up a reaction
What does the graph of pH and temperature look like
Bell curve
What is catabolism?
Breaking down complex molecules from simpler ones
RELEASES ENERGY
What is anabolism?
building complex molecules from simpler ones
CONSUME ENERGY
What is Enthalpy?
Total potential energy of a molecules
What is entropy?
Measure of disorder or randomness in a system
Unavailable energy in a closed system
What is metabolism?
Totality of an organisms chemical processes
Series of chemical reaction that occur in living organism to sustain life
What are functions of metabolism?
Storage (converting certain molecules as energy source for cellular process)
Eliminate waste
Transforming molecules as Biomolecules
What is endergonic?
Absorbs free energy from surroundings
What is exergonic?
Not release of free energy
INCLUDES ANY TYPA SYNTHESIS
What is competitive inhibition?
When a substrate is competing with inhibitor for an active site
— INTERFERES WITH ACTIVE SITE OF ENZYME SDO SUBSTRATE CANNOT BIND
