IGCSE O Level Biology Practice Test 57

GCSE Biology Quiz Questions and Answers PDF - 57

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The Quiz: One of the most common essential component of many co-enzymes is; "GCSE Biology" App Download (Free) with answers vitamin k, vitamin d12, vitamin e and vitamin b complex to study online school courses. Solve what are enzymes questions and answers, Amazon eBook to download free sample for ACT subject tests.

GCSE Biology Questions and Answers PDF Download: Quiz 57

MCQ 281: One of the most common essential component of many co-enzymes is

A) vitamin D12

B) vitamin K

C) vitamin E

D) vitamin B complex

MCQ 282: Over-breathing can be countered through

A) in breath longer than out breath

B) out breath longer than in breath

C) excessive breathing

D) holding breath

MCQ 283: Postum is a replacement of

A) nicotine

B) caffeine

C) alcohol

D) penicillin

MCQ 284: If male and female flowers are born on different plants, the plant is called

A) bisexual

B) dioecious

C) unisexual

D) trisexual

MCQ 285: Energy reserves are normally stored as

A) glycogen

B) simple sugars

C) complex sugars

D) sucrose

IGCSE O Level Biology Exam Prep Tests

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