IGCSE O Level Biology MCQs - Chapter 19

What Are Enzymes Trivia Questions and Answers PDF - 8

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What Are Enzymes Questions & Answers PDF Download: MCQ Quiz 8

MCQ 36: Mammals do not produce

salivary amylase
catalase
pancreatic amylase
Cellulose

MCQ 37: Extreme changes in acidity or alkalinity of solutions

produce more hydrogen per oxide
needed more enzymes
cause enzymes to become denatured
cause foods get digested earlier

MCQ 38: Lipids are a form of

carbohydrates
proteins
fats
minerals

MCQ 39: Nature of pepsin is slightly

acidic
alkaline
water based
mineral based

MCQ 40: All are wrong about denatured enzyme, but

looses its concave structure
looses its active sites
gets divided into many smaller enzymes
becomes even more quicker in chemical reactions

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