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Biology Practice Quiz

A vibrant illustration showing various enzymes at work in a cell, with labels for different biological processes, molecular structures, and testing methods related to enzymes.

Biology Enzyme Quiz

Test your knowledge on enzymes and their functions in biological processes with this comprehensive quiz! Whether you're studying for an exam or just want to brush up on your skills, this quiz covers a wide range of topics.

Key Features:

11 engaging multiple-choice questions
Focus on enzyme action, tests, and safety precautions
Immediate feedback on your answers

11 Questions3 MinutesCreated by LearningBee123

What is the factor among these that doesn’t affect enzyme action?

Temperature

Pressure

Enzyme concentration

Substrate concentration

What is the definition of “enzyme”?

Biological catalyst that speeds up a reaction

Biological catalyst that slows down a reaction

A substance that reduces sugar

Substance that heats a reaction

The optimum temperature is the….that works in a reaction activity

Least temperature

Highest temperature

Perfect best temperature

Worst temperature

What happens to the enzyme if the temperature of the activity is so high?

Dies

Work faster

Work slower

Denatured

Lactase breaks down lactose in milk into:

Carbon dioxide and water

Hydrogen and water

Glucose and galactose

Oxygen and glucose

What is used to test starch?

Benedict

Biuret

Iodine

DCPIP

What is the result of a positive test of starch?

Green

Yellow

Orange

Red

None of them Is the result

All of the above can be the result

What is the safety precaution to do when doing ALL food tests?

Wear eye goggles and gloves

Heating in water bath

Stay away

What’s the test for vitamin C and it’s positive result?

Biuret-purple

Benedict-blue black

DCPIP-colorless

DCPIP-milky

Fats are tested by..

Biuret

Ethanol emulsion test

Iodine

DCPIP

The only food group that needs to be heated in a water bath of 80 C is…

Starch

Vitamin C

Protein

Reducing sugar

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