Enzymes MCQs

Our set of Enzymes multiple-choice questions (MCQs) discuss topics such as enzyme structure, function, regulation, and their roles in metabolic pathways.

So if you’re studying for an exam or seeking to deepen your understanding of biochemistry, these MCQs provide valuable learning opportunities for students and enthusiasts alike.

Let’s start with these MCQs below and expand your knowledge of biochemical processes!

MCQ on Enzymes

Enzymes have pockets, called _, that they use to attach to certain molecules

Cristae
cilia
active sites
substrte

Correct Answer

active sites

The molecule an enzyme binds to is called its __

Cristae
cilia
active sites
substrte

Correct Answer

substrte

if people don’t get enough vitamin C, the enzymes needed to make collagen can’t function, resulting in a disease called ?

marasmus
scurvy
anemia
haemophilia

Correct Answer

scurvy

Enzymes are biological molecules, typically proteins, that act as catalysts in biochemical reactions, speeding up the rate of these reactions without being consumed in the process.

The lack of collagen in people with scurvy causes _

bleeding gums
loss of teeth
abnormal bone development in children
All of these

Correct Answer

All of these

The enzyme _ catalyzes the reaction between the reactants urea and water

urease
Amylase
protease
lipase

Correct Answer

urease

The enzyme urease catalyzes the reaction between the reactants urea and water, yielding the products _

carbon dioxide
ammonia
Both of these
Methyl alcohol

Correct Answer

Both of these

The enzyme urease catalyzes the reaction between the reactants urea and _, yielding the products carbon dioxide and ammonia

Methanol
Benzene
ether
water

Correct Answer

water

_ is an enzyme that helps break down lipids

urease
Amylase
protease
lipase

Correct Answer

lipase

_ is an enzyme that helps break down lactose.

Urease
lactase
Amylase
protease

Correct Answer

lactase

Enzymes work by reducing the amount of _ needed to start a reaction so reactions can occur more easily.

activation energy
Kinetic energy
Potential energy
None of these

Correct Answer

activation energy

a process in which a reaction pathway proceeds normally until the final product is produced at too high of a level is called?

feedback inhibition
hydrolysis
glycolysis
osmosis

Correct Answer

feedback inhibition

The process of _ prevents cells not only from having to use energy creating excess products but also from having to make room to store the excess products

hydrolysis
Glycolysis
feedback inhibition
Osmosis

Correct Answer

feedback inhibition

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