IGCSE O Level Chemistry MCQs – Practice Test for Exam Prep

Catalysts and Enzymes Multiple Choice Questions with Answers – PDF Download

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Catalysts and Enzymes MCQs PDF Download – Prep Test

MCQ 1: The optimal temperature for enzymes is:

room temperature
35-37 °C
40-45 °C
above 45 °C

MCQ 2: Many catalysts are:

noble gases
transition metals
non-metals
inert gases

MCQ 3: Uses of enzymes do not include:

production of insulin
production of cancer drugs
drug to combat plague
drug to fight dwarfism

MCQ 4: Biological catalyst to convert Hydrogen Peroxide (H₂O₂) into water (H₂O) and oxygen (O₂) is:

amylase
hydrolase
catalase
protease

MCQ 5: What is true about Enzymes?

they act as biological catalysts
they operate over a wide range of pH
they are highly specific
they operate over wide temperatures only

IGCSE O Level Chemistry MCQs App & e-Book – Catalysts and Enzymes Practice Tests

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