GCE Biology Quiz Questions and Answers PDF - 105

MCQ 521: Enzymes are largely composed of

1. fat
2. carbohydrates
3. proteins
4. minerals

MCQ 522: Larvae breath through the help of

1. feeding brushes
2. pair of air floats
3. pair of spiracles
4. pair of gills

MCQ 523: Profuse growth of algae occurs due to

1. hydrogen sulphide in water
2. nitrates and phosphates in water
3. carbon dioxide in water
4. chlorine in water

MCQ 524: Small size and light weight ensures

1. proper seed dispersal
2. seed dispersal through wind
3. seed dispersal through water
4. seed dispersal through insects

MCQ 525: Apart from other reasons, excess thyroxin may cause

1. myxedema
2. heart attack
3. meningitis
4. obesity