Enzymes and organelles  and   Their Functions

Enzymes and organelles and Their Functions

Assessment

Flashcard

Biology

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

2.

FLASHCARD QUESTION

Front

What is the optimal temperature for enzyme activity?

Back

The temperature at which an enzyme functions most efficiently, often around 30°C for many enzymes.

3.

FLASHCARD QUESTION

Front

What organelle is responsible for photosynthesis?

Back

Chloroplasts.

4.

FLASHCARD QUESTION

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

5.

FLASHCARD QUESTION

Front

What is the relationship between pH and enzyme activity?

Back

Each enzyme has an optimal pH range where it is most active; deviations can reduce activity.

6.

FLASHCARD QUESTION

Front

True or False: Every enzyme has an optimal temperature and pH.

Back

True.

7.

FLASHCARD QUESTION

Front

What happens to enzyme activity at extreme temperatures?

Back

Enzyme activity typically decreases and can lead to denaturation.

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