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Questions and Answers
What is the halflife of the peptide bond in peptides and proteins under physiological conditions?
What is the halflife of the peptide bond in peptides and proteins under physiological conditions?
- 10 years
- 20 years (correct)
- 30 years
- 5 years
What are enzymes?
What are enzymes?
- Proteins that help increase the rate of chemical reactions (correct)
- Carbohydrates that regulate biological activities
- Lipids involved in metabolic pathways
- RNA molecules that aid in cellular processes
What is the role of a catalyst in a chemical reaction?
What is the role of a catalyst in a chemical reaction?
- It participates in the reaction and emerges at the end in its original form (correct)
- It accelerates the reaction and becomes part of the end product
- It initiates the reaction and changes form at the end
- It inhibits the reaction and transforms into a different substance
Which enzyme is synthesized in the pancreas and helps break down dietary proteins in the small intestine?
Which enzyme is synthesized in the pancreas and helps break down dietary proteins in the small intestine?
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What are most enzymes made of?
What are most enzymes made of?
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Study Notes
Peptide Bond and Enzymes
- The halflife of the peptide bond in peptides and proteins under physiological conditions is unknown, but it's extremely stable, with a half-life of several years.
- Enzymes are biological molecules, typically proteins, that speed up chemical reactions in living organisms.
- A catalyst is a substance that increases the rate of a chemical reaction without being consumed or altered in the process.
- The enzyme trypsin is synthesized in the pancreas and helps break down dietary proteins in the small intestine.
- Most enzymes are made of proteins, although some are RNA molecules.
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