Ordinary Level Biology Multiple Choice Questions (MCQ) PDF Download

MCQ 1: Carbon dioxide (CO₂) is released in the atmosphere through

1. respiration
2. combustion
3. decay
4. all of above

MCQ 2: In plants the term hydrophonics refers to growing

1. plants without soil
2. plants in air
3. plants in soil
4. plants in water

MCQ 3: Enzyme 'Enterokinase' is found in

1. saliva
2. gastric Juice
3. pancreatic Juice
4. intestinal juice

MCQ 4: Caseinogen is a form of

1. soluble milk proteins
2. insoluble milk proteins
3. cellulose
4. proteins

MCQ 5: Carbon (C) requirements are met through organic compounds in

1. autotrophic nutrition
2. photoautotrophic nutrition
3. chemoautotrophs
4. heterotrophic nutrition