O Level Courses

IGCSE O Level Biology Certification Exam Tests

IGCSE O Level Biology Practice Test 57

GCSE Biology Quiz Questions and Answers PDF - 57

The GCSE Biology Quiz Questions and Answers PDF, GCSE Biology Quiz with Answers PDF Download e-Book Ch. 19-57 to prepare IGCSE O Level Biology Practice Tests. Solve What Are Enzymes MCQ with answers PDF, GCSE Biology Multiple Choice Questions (MCQ Quiz) for best accredited online colleges. The GCSE Biology Quiz App Download: Free learning app for gcse biology, human respiration, tea and coffee, types of flowers, biology questions answers test prep for ACT subject tests.

The Quiz: One of most common essential component of many co-enzymes is; "GCSE Biology" App Download (Free) with answers: Vitamin K; Vitamin D12; Vitamin E; Vitamin B complex; for best accredited online colleges. Learn What Are Enzymes Questions and Answers, Apple eBook to download free sample to study online school courses.

GCSE Biology Questions and Answers PDF Download: Quiz 57

MCQ 281:

One of the most common essential component of many co-enzymes is

  1. vitamin D12
  2. vitamin K
  3. vitamin E
  4. vitamin B complex
MCQ 282:

Over-breathing can be countered through

  1. in breath longer than out breath
  2. out breath longer than in breath
  3. excessive breathing
  4. holding breath
MCQ 283:

Postum is a replacement of

  1. nicotine
  2. caffeine
  3. alcohol
  4. penicillin
MCQ 284:

If male and female flowers are born on different plants, the plant is called

  1. bisexual
  2. dioecious
  3. unisexual
  4. trisexual
MCQ 285:

Energy reserves are normally stored as

  1. glycogen
  2. simple sugars
  3. complex sugars
  4. sucrose

IGCSE O Level Biology Exam Prep Tests

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GCSE Biology App (Android & iOS)

GCSE Biology App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

Phylum App (Android & iOS)

Phylum App (Android & iOS)

Cell Biology App (Android & iOS)

Cell Biology App (iOS & Android)