IGCSE O Level Biology MCQs (O Level) From Textbook

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IGCSE O Level Biology Study Material: Practice Test 7 (Chapter 19)

What Are Enzymes Quiz Questions & Answers PDF Download - 7

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The What Are Enzymes Quiz Questions and Answers PDF (What Are Enzymes Quiz PDF e-Book) download Ch. 19-7 to study IGCSE O Level Biology Course. Practice Specifity of Enzymes Quiz, What Are Enzymes MCQ questions and answers PDF for colleges that offer online degrees. The IGCSE O Level Biology Quiz App to Download Free What Are Enzymes App to study factors affecting enzymes, digestion: enzyme catalyzed process career test for colleges that offer certificate programs.

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What Are Enzymes Exam Questions and Answers PDF Download: Test 7

MCQ: 31

Salivary and pancreatic amylase help digest

  1. proteins
  2. starch
  3. fats
  4. minerals
MCQ: 32

At a pH 7 to 9, the activity of amylase

  1. stops
  2. slows
  3. expedites
  4. ends
MCQ: 33

Binding of enzyme and substrate on active site is explained through

  1. hide and seek hypothesis
  2. lock and hide hypothesis
  3. lock and run hypothesis
  4. lock and key hypothesis
MCQ: 34

In fish, the large molecules are normally made up of

  1. proteins and fats
  2. Proteins and carbohydrates
  3. Minerals and proteins
  4. Minerals and Fats
MCQ: 35

Using manganese oxide as a catalyst, in heating potassium chlorate (KClO3), manganese oxide (MnxOy)

  1. evaporates
  2. melts
  3. remains unchanged
  4. becomes magnesium carbonate

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