Lect6 Enzymes and Carbs Pt1 Flashcards
What are enzymes primarily composed of?
Proteins
What is the role of enzymes in biochemical reactions?
Enzymes act as biological catalysts that accelerate biochemical reactions by lowering the activation energy
What is the Michaelis-Menton equation used for?
The Michaelis-Menten equation is used to describe the rate of enzymatic reactions.
Name the six major classes of enzymes according to IUBMB classification?
Oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases
What is the effect of competitive inhibitors on enzyme activity?
Competitive inhibitors increase Km without affecting Vmax.
What is the primary energy currency in cells?
ATP (Adenosine Triphosphate) is the primary energy currency in cells.
What is the role of NADH and FADH2 in energy production?
NADH and FADH2 are electron carriers that play a crucial role in the electron transport chain and ATP synthesis during aerobic respiration.
What is the function of kinases in enzyme regulation?
Kinases catalyze the addition of phosphate groups, regulating enzyme activity.
What is the significance of the enzyme-substrate complex?
The enzyme-substrate complex is an intermediate that facilitates chemical transformations by binding substrates at the enzyme’s active site.
What is the role of enzymes in metabolism?
Enzymes are integral to metabolic pathways, ensuring efficient energy conversion and facilitating reactions like those in the TCA cycle and oxidative phosphorylation.
What is the effect of non-competitive inhibitors on enzyme activity?
Non-competitive inhibitors decrease Vmax without changing Km.
What is the role of enzymes in carbohydrate metabolism?
Enzymes facilitate carbohydrate metabolism, including glucose digestion, transport, and metabolism through glycolysis, the TCA cycle, and oxidative phosphorylation.
