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Questions and Answers
What are the two main types of processes in metabolism?
What are the two main types of processes in metabolism?
What is an example of a catabolic process?
What is an example of a catabolic process?
Which process is characterized by the synthesis of complex molecules from simple molecules?
Which process is characterized by the synthesis of complex molecules from simple molecules?
Which of the following statements about enzymes is true?
Which of the following statements about enzymes is true?
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Which form of metabolism releases energy?
Which form of metabolism releases energy?
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What type of macromolecules are most enzymes made of?
What type of macromolecules are most enzymes made of?
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Study Notes
Metabolism
- Metabolism is the umbrella term for all chemical reactions occurring in a living organism
- These processes involve converting food into energy in the form of ATP and forming biomolecules like carbohydrates, proteins, lipids, and nucleic acids
- Metabolism has two main branches: catabolism and anabolism
Catabolism
- Catabolism is the breakdown of complex substances into simpler ones, releasing energy in the process
- Example: breaking down glucose during cellular respiration to generate energy
- Chemical reaction: A (substrate) -> B + C (products)
Anabolism
- Anabolism is the synthesis of complex molecules from simpler ones, using or absorbing energy
- Example: forming glucose during photosynthesis
- Chemical reaction: A + B (substrate) -> C (product)
Enzymes
- Biochemical reactions occur at a high rate in cells to maintain living processes
- Enzymes are responsible for speeding up these reactions
- An enzyme is an organic catalyst, mostly made up of proteins, produced by living cells
- Note: not all enzymes are synthesized from proteins
- Substances required for the reaction are called substrates
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Description
Learn about the chemical reactions that occur in a living organism, including the process of converting food into energy and the formation of biomolecules.
