ACTUAL Exam Questions and CORRECT
Answers
Metabolism - CORRECT ANSWER - sum of all chemical reactions taking place
anabolic - CORRECT ANSWER - production or synthesis of energy rich sugar molecules
catabolic - CORRECT ANSWER - degradation (breakdown) of energy rich sugar
molecules
enzyme - CORRECT ANSWER - specialized proteins that help speed up chemical
reactions. Help lower the activation energy
substrate - CORRECT ANSWER - molecules that are released form the enzymes active
site. Are the "raw ingredients" entering the reaction.
product - CORRECT ANSWER - molecules that are released from the enzymes active
site. These molecules were modified during the reaction and are no longer identical to the
substrate
intermediate - CORRECT ANSWER - temporary molecules "under construction" in the
middle of a pathway. They are neither a starting substrate nor the finished product.
activation energy - CORRECT ANSWER - the amount of energy required to start a
reaction
gibbs free energy - CORRECT ANSWER - difference in the energy of the products and
reactants not affected by the enzymes
, scientific model - CORRECT ANSWER - a representation used to explain something you
can't see directly
inhibition - CORRECT ANSWER - something that prevents the enzyme from catalyzing
the reaction
Activation - CORRECT ANSWER - something that converts the enzyme from inactive
(not working) to active (working) form
denature - CORRECT ANSWER - a protein that loses their function 3D shape
allosteric binding - CORRECT ANSWER - a non-substrate molecule binds to a different
part of the enzyme (not the active site) and either activated or inhibits the enzyme activity
negative feedback - CORRECT ANSWER - product of the pathway series as an enzyme
inhibitor. So, the more product that builds up, the more of enzyme 1 that is inhibited, decreasing
the production of the product
Anabolic reaction - CORRECT ANSWER - Addition of energy to produce energy rich
sugar molecules (ex. photosynthesis)
Catabolic Reaction - CORRECT ANSWER - release of energy to degrade energy rich
sugar molecules (ex. cellular respiration)
active site - CORRECT ANSWER - where chemical reaction takes place and where
product is released
binding site - CORRECT ANSWER - bind and hold on to substrates (within the active
site)
Catalytic Site - CORRECT ANSWER - reduce chemical activation energy.