pH and Digestive Enzymes
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Objective
I can explain how pH affects the activity of digestive enzymes.
Part 1 of 4
Warm-up video
Amoeba Sisters · 5:47Vetted channel
We don't generate video — this one is by Amoeba Sisters on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Enzymes have a specifically shaped area called the active site where substrates can bind.
- 2
Enzymes are considered catalysts because they can be used over and over again and are not used up in the reaction.
- 3
If an enzyme's environment changes outside of its ideal pH or temperature range, the enzyme can become denatured, meaning it can no longer bind to its substrate.
Part 3 of 4
Practice
3 questions
Explain how pH levels can affect the function of an enzyme, using the term 'denatured' in your answer.
The enzyme pepsin is found in the stomach. Predict the ideal pH range for pepsin and explain your reasoning.
Part 4 of 4
Exit ticket
Quick comprehension check
“Explain how a change in pH can affect a digestive enzyme and what the result of that change is.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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