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Multiple Choice
Which of the following regulate enzyme activity in metabolic pathways?
A
Phospholipids
B
Structural proteins
C
DNA polymerases
D
Allosteric effectors
Verified step by step guidance
1
Understand the concept of enzyme regulation: Enzymes are biological catalysts that speed up chemical reactions in metabolic pathways. Their activity can be regulated to ensure proper control of metabolic processes.
Learn about allosteric effectors: Allosteric effectors are molecules that bind to an enzyme at a site other than the active site (called the allosteric site). This binding can either increase (activators) or decrease (inhibitors) the enzyme's activity.
Explore the mechanism of allosteric regulation: When an allosteric effector binds to the enzyme, it induces a conformational change in the enzyme's structure. This change can alter the enzyme's ability to bind to its substrate or catalyze the reaction effectively.
Differentiate allosteric regulation from other factors: Phospholipids, structural proteins, and DNA polymerases do not directly regulate enzyme activity in metabolic pathways. Allosteric effectors are specific molecules that modulate enzyme activity through non-covalent interactions.
Apply this knowledge to metabolic pathways: Allosteric regulation is crucial for maintaining homeostasis in metabolic pathways. For example, feedback inhibition often involves allosteric effectors that prevent overproduction of certain metabolites.