C1.1 Enzymes

C1.1 Enzymes

Assessment

Flashcard

Biology

11th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the pH level of the stomach and why is it important for enzyme activity?

Back

The pH level of the stomach is around 2 due to hydrochloric acid (HCl), which is important for activating the enzyme pepsin that digests proteins.

2.

FLASHCARD QUESTION

Front

What happens to pepsin when it enters the small intestine?

Back

Pepsin becomes inactive due to the higher pH levels (7 to 9) in the small intestine.

3.

FLASHCARD QUESTION

Front

Which enzyme is known to work best at a pH near 2?

Back

Pepsin works best at a pH near 2.

4.

FLASHCARD QUESTION

Front

What is the general purpose of enzymes in biological reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy.

5.

FLASHCARD QUESTION

Front

What is the relationship between enzyme activity and pH?

Back

Enzyme activity typically varies with pH, with each enzyme having an optimal pH range for maximum activity.

6.

FLASHCARD QUESTION

Front

What is the role of chymotrypsin in the human body?

Back

Chymotrypsin is an enzyme that catalyzes the digestion of proteins in the small intestine.

7.

FLASHCARD QUESTION

Front

What occurs to a substrate after it binds to an enzyme?

Back

After binding to an enzyme, the substrate undergoes a chemical reaction and is converted into a product.

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