Practice Question
Pepsin, which speeds up the breakdown of proteins, is classified as
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Correct Answer:
an enzyme.
Rationale:
🧬 Pepsin is a protein-digesting molecule that accelerates the breakdown of proteins into peptides.
🧬 It is classified as an enzyme, specifically a protease, because it facilitates chemical reactions without being consumed.
🧬 Pepsin works optimally in the acidic environment of the stomach, where it is secreted as pepsinogen and then activated.
🧬 Unlike nucleic acids or lipids, pepsin does not store genetic information or energy but instead aids in protein digestion.
🧬 It plays a critical role in the digestive process by initiating the breakdown of dietary proteins into absorbable units.
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This question is from ATI TEAS 7 Science~2025 Exam 5 which contains 49 questions.
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Question Details
- Category: ATI TEAS
- Subcategory: Comprehensive Teas 7 Exam(s)
- Domain: Comprehensive Teas 7~2025
- Answer Choices: 4