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Enzyme Catalysis Video Lecture - Chemistry Class 12 - NEET

150 videos|377 docs|213 tests

FAQs on Enzyme Catalysis Video Lecture - Chemistry Class 12 - NEET

1. What is enzyme catalysis?
Enzyme catalysis is a process in which enzymes act as catalysts to accelerate chemical reactions in living organisms. Enzymes are proteins that bind to specific molecules, called substrates, and convert them into products through various biochemical reactions.
2. How do enzymes catalyze reactions?
Enzymes catalyze reactions by lowering the activation energy required for the reaction to occur. They do this by binding to the substrate and stabilizing its transition state, facilitating the formation of products. Enzymes can also provide an alternative reaction pathway, allowing the reaction to proceed at a faster rate.
3. What factors can affect enzyme catalysis?
Several factors can influence enzyme catalysis, including temperature, pH, substrate concentration, and enzyme concentration. Changes in these factors can alter the enzyme's activity, as they can affect the enzyme's structure and the binding affinity between the enzyme and substrate.
4. Can enzymes catalyze any type of reaction?
Enzymes are highly specific in their catalytic activity and typically catalyze a particular reaction or a specific group of similar reactions. Each enzyme has a unique active site that fits the specific shape and chemical properties of its substrate. This specificity allows enzymes to perform their functions effectively.
5. How are enzymes regulated in the cell?
Enzyme activity can be regulated in various ways within the cell. Some enzymes are regulated by the presence of specific molecules, known as allosteric regulators, which can either activate or inhibit their activity. Enzymes can also be regulated through covalent modifications, such as phosphorylation or methylation, which can alter their structure and activity. Additionally, gene expression and the availability of cofactors or coenzymes can also affect enzyme activity.
150 videos|377 docs|213 tests
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