What are Enzymes

• What is the main focus of the video discussed in the study material?

  The video explores the world of enzymes, their functions, and how they work.
• Why are enzymes important for living cells?

  They facilitate a huge number of chemical reactions necessary for cell function.
• What is a major problem with increasing the temperature to speed up chemical reactions?

  High temperatures can damage cells and speed up non-useful reactions.
• How is a catalyst defined?

  A catalyst is a substance that increases the speed of a chemical reaction without being changed or used up.
• What distinguishes enzymes from general catalysts?

  Enzymes are biological catalysts made by living organisms.
• What are enzymes primarily made of?

  Enzymes are large proteins made up of long chains of amino acids.
• How do the specific sequences of amino acids affect enzymes?

  The specific sequences determine how enzymes fold and the unique shapes they form.
• What is a substrate in the context of enzyme action?

  A substrate is a reactant that an enzyme acts upon in a chemical reaction.
• What is the role of the active site in an enzyme?

  The active site is a region of the enzyme that has a unique shape complementary to the substrate.
• What happens if a substrate does not fit the active site of an enzyme?

  If the substrate does not fit, the reaction will not be catalyzed.
• What are the two main models of enzyme action?

  • Lock and Key Model: Substrates fit perfectly into the active site.
  • Induced Fit Model: Enzyme changes shape slightly to fit the substrate better.
• How did the understanding of enzyme action evolve from the lock and key model to the induced fit model?

  Scientists now know that enzymes change shape slightly when binding to substrates, allowing for a better fit.
• How can you describe the induced fit model using a common analogy?

  • It can be likened to putting your hand into a rubber glove, which molds around your hand for a perfect fit.
• What is the purpose of the learning platform mentioned in the video?

  The learning platform allows users to watch videos, practice learned material, and track progress.
• What is the format of the additional resources provided in the video?

  Resources are arranged in a playlist and linked in the description.