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Physiology Chapter 4
Enzymes and Energy
17
Physiology
Undergraduate 3
02/24/2014

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Term
Ribozymes are RNA molecules that act as ____________
Definition
enzymes
Term
Enzymes ______________ the rate of a specific chemical reaction
Definition
– increase
Term
The rate at which a chemical reaction can be increased is by either ______________ the temperature or ______________ the activation energy
Definition
- increasing, decreasing
Term
The process that yeast uses to make alcohol from glucose is ____________5. Biological catalysts remain unchanged at the end of the reaction.
Definition
fermentation
Term
The substrate binds to the ______________ of the enzyme
Definition
- active site
Term
An enzyme elevated in the plasma of men with prostate cancer is ____________
Definition
acid phosphatase
Term
When an enzyme catalyzes a chemical reaction amino acids in the enzyme's active site interact with________________
Definition
substrate molecules.
Term
Elevated plasma _____________ could be indicative of muscular dystrophy.
Definition
aldolase
Term
Elevated plasma amylase could indicate a perforated _______________.
Definition
peptic ulcer.
Term
. Digestive enzymes which remove hydrogen atoms from their substrates are referred to as_____________
Definition
dehydrogenases.
Term
The breakdown of hydrogen peroxide is catalyzed by ______________
Definition
catalase
Term
Hydrolysis reactions are catalyzed by____________.
Definition
hydrolases.
Term
Metal ions such as __________ or ___________ can serve as enzyme cofactors.
Definition
magnesium

calcium
Term
In the reaction (H2O + CO2 -> H2CO3), increasing the concentration of H2O would. increase the concentration of ______
Definition
H2CO3.
Term
. A defect in the enzyme that catalyzes the formation of melanin from DOPA results in _____________.
Definition
albinism.
Term
Decreased phenylalanine metabolism causes_______________.
Definition
albinism
Term
-
Definition
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