Enzymes and Metabolism

Revision sheet excerpt

Course Outline

  1. Metabolism and Reaction Types
  2. Energy in Living Organisms
  3. Enzyme Structure and Active Sites
  4. Induced Fit and Catalysis
  5. Activation Energy and Collisions
  6. Specificity and Denaturation
  7. Factors Affecting Enzyme Rates

1. Metabolism and Reaction Types

Key Concepts & Definitions

  • Metabolism : The sum of all chemical reactions that occur in living organisms, converting reactants into products.
  • Anabolic reactions : Form macromolecules from monomers by condensation reactions and require energy, making them endergonic.
  • Catabolic reactions : Hydrolyse macromolecules into monomers and release energy, making them exergonic.

Essential Points

  • Examples of anabolic reactions include protein synthesis, glycogen formation, and photosynthesis.

  • Examples of catabolic reactions include digestion and oxidation of substrates during respiration.

Memory Hook

Build or break

2. Energy in Living Organisms

Key Concepts & Definitions

  • Kilocalorie : The amount of heat energy needed to increase the temperature of 1 g of water by 1°C.

Essential Points

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Quiz preview

1. Metabolism is best described as what process in living organisms?

2. What is metabolism in living organisms?

3. Which statement correctly matches anabolic reactions to their energy requirement and reaction type?

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Flashcards preview

What is metabolism in living organisms?

The sum of all chemical reactions converting reactants into products.

Metabolism definition

Sum of all chemical reactions in organisms.

What type of energy change characterizes anabolic reactions?

They are endergonic, requiring energy.

Anabolic reactions

Require energy; build macromolecules.

Which forms of energy are important to living organisms?

Kinetic, potential, thermal, and chemical energy.

Catabolic reactions

Release energy; break down substrates.

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What does the revision sheet on Enzymes and Metabolism cover?

The revision sheet covers the essential concepts of Enzymes and Metabolism. It is organized by topic to facilitate learning and memorization, with key definitions, explanations and summaries.

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The quiz contains 11 multiple-choice questions with detailed corrections and explanations for each answer. Ideal for testing your knowledge and identifying gaps.

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