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Back to school with enzymes. Trivia Quiz

A quiz to test your knowledge of enzymes found in organisms.

A multiple-choice quiz by pdav1. Estimated time: 3 mins.

Author
pdav1

Time
3 mins

Type
Multiple Choice

Quiz #
229,400

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
6 / 10

Plays
5277

One at a Time - Single Page - Timed Game

Question 1 of 10

1. The part of an enzyme that is used to break down or construct molecules is known as the active WHAT? Hint

Complex

Structure

Zone

Site

NEXT>

Question 2 of 10

2. Why can't the enzymes in saliva work in the stomach? Hint

Conditions are too acidic

They get broken down by bacteria

It is too dark

The stomach is moving too much

NEXT>

Question 3 of 10

3. When enzymes are heated above a certain temperature, what process do they undergo? Hint

Desiccation

Disintegration

Denaturation

Petrification

NEXT>

Question 4 of 10

4. Maltase is an important enzyme found in the...? Hint

Tissue Fluid

Ileum

Cells of the gut wall

Oesophagus

NEXT>

Question 5 of 10

5. Pectinases break down which of the following? Hint

Wood

Collagen

Fruit

Lactic acids

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Question 6 of 10

6. Which of the following groups are the main producers of cellulase, an enzyme used to break down cellulose in plant cell walls? Hint

Bacteria

Herbivores

Fungi

Carnivores

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Question 7 of 10

7. Which organelle, also known as a suicide bag, is used to break down a cell once it has died? Hint

Nucleus

Centriole

Cytoplasm

Lysosome

NEXT>

Question 8 of 10

8. Normally, trypsin is produced by which organ? Hint

Liver

Kidney

Stomach

Pancreas

NEXT>

Question 9 of 10

9. What process is the enzyme "RuBisCO" used in? Hint

Photosynthesis

Digestion

Respiration

Mass flow

NEXT>

Question 10 of 10

10. RNA polymerase is involved in which of the following processes? Hint

Phagocytosis

Photosynthesis

Sparging

Transcription

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Quiz Answer Key and Fun Facts

1. The part of an enzyme that is used to break down or construct molecules is known as the active WHAT?

Answer: Site

It's the active site that binds to molecules so that enzymes can go about their business.

2. Why can't the enzymes in saliva work in the stomach?

Answer: Conditions are too acidic

Enzymes are held together by attraction between oppositely charged molecules, a bit like the poles on magnets. When acid is introduced into the stomach and pH drops, there are loads of positive charges floating around which mess up the charges in the enzyme, so it breaks down.

3. When enzymes are heated above a certain temperature, what process do they undergo?

Answer: Denaturation

Denaturation is when heat overcomes some of the forces that hold enzymes together, and so the enzyme permanently changes shape.

4. Maltase is an important enzyme found in the...?

Answer: Cells of the gut wall

Maltase is an intracellular enzyme (found inside cells) and breaks down maltose to glucose in the cells of the intestine.

5. Pectinases break down which of the following?

Answer: Fruit

Pectinases are mostly used in industry where they break down fruit, particularly apples.

6. Which of the following groups are the main producers of cellulase, an enzyme used to break down cellulose in plant cell walls?

Answer: Fungi

Well carnivores is just a silly answer, but actually so is herbivores as they do not produce cellulase but rely on bacteria contained within their stomachs. These can only be certain bacteria as very few types of bacteria actually produce cellulase. It is fungi that produce the most cellulase as many species of fungi use cellulase to break down cells, for example in tree bark.

7. Which organelle, also known as a suicide bag, is used to break down a cell once it has died?

Answer: Lysosome

Since the word "lysis" means to split, even if you didn't know the answer you could have guessed that the lysosome is the organelle that contains the enzymes for breaking down the cell.

8. Normally, trypsin is produced by which organ?

Answer: Pancreas

Trypsin is one of the digestive proteases (enzymes that break down proteins) found in the small intestine where it works well in the slightly alkaline conditions.

9. What process is the enzyme "RuBisCO" used in?

Answer: Photosynthesis

RuBisCO, standing for Ribulose 1,5-bisphosphate carboxylase/oxygenase, is used to enable the introduction of CO2 in the second stage of photosynthesis known as the light-independent reaction, or the Calvin cycle. Quizzy fact: RuBisCO is the most common protein on Earth.

10. RNA polymerase is involved in which of the following processes?

Answer: Transcription

RNA polymerase is an enzyme that is used to make copies of DNA in the form of RNA, which is used to make proteins.

Source: Author pdav1

This quiz was reviewed by FunTrivia editor crisw before going online.
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