IGCSE A Level Chemistry MCQs – Practice Test for Exam Prep

Enzymes in Chemistry Multiple Choice Questions with Answers – PDF Download

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Free "Enzymes in Chemistry Study" App Download with MCQ: Which statement is incorrect about enzymes?; with answers: they speed up reactions without being used up, they raise the activation energy, they are all large molecules, and they are action-specific for chemistry analytical skills. Practice Enzymes in Chemistry Quiz Questions, download Google e-Book (Free Chapter) to achieve academic distinction.

Enzymes in Chemistry MCQs PDF Download – Prep Test

MCQ 1: Which statement is incorrect about enzymes?

they speed up reactions without being used up
they raise the activation energy
they are all large molecules
they are action-specific

MCQ 2: Consider the reaction: (NH₂)₂CO + H₂O → NH₃ + CO₂. The reaction is catalyzed by the enzyme:

amylase
protease
urease
galactose

MCQ 3: Consider the reaction: (NH₂)₂CO + H₂O → NH₃ + CO₂. Water in this reaction:

acts as a solvent
helps to dissolve the residues away
acts with the urea only after urea is bound to enzyme surface
acts as a suspension

MCQ 4: Consider the reaction: (NH₂)₂CO + H₂O → NH₃ + CO₂. The substrate in this reaction is:

urease
urea
water
Hydrogen Gas

MCQ 5: Enzymes do not:

produce side products
get consumed up during the process
do not change their chemical composition
all of above

IGCSE A Level Chemistry MCQs App & e-Book – Enzymes in Chemistry Practice Tests

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