Biology MCQs

31. What is the nitrogen-fixing symbiotic organism present in Azolla?
[A] nostoke
[B] anabaena
[C] aulosira
[D] azospirillum

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32. What is the ultimate product of Glycolysis?
[A] Pyruvic acid
[B] Carbon dioxide
[C] Glucose
[D] Ethyl alcohol

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33. Filariasis is not transmitted by ____:
[A] Anopheles mosquito
[B] Aedes mosquito
[C] Culex mosquito
[D] Swamp mosquito

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34. What is the Normal Blood Volume in human adult?
[A] 1 litre
[B] 3 litre
[C] 5 litre
[D] 7 litre

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35. The green colour of the leaves is due to the presence of ____:
[A] Proteins
[B] Carbohydrates
[C] Lipids
[D] Chlorophyll

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36. Night Blindness is caused by the deficiency of Vitamin ___:
[A] Vitamin A
[B] Vitamin C
[C] Vitamin K
[D] Vitamin B12

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37. Which type of plants have weak stems and take support on neighbouring structures to climb up?
[A] Climbers
[B] Herbs
[C] Trees
[D] Shrubs

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38. The sugar present in DNA is ____:
[A] Pentose
[B] Xylulose
[C] Hexose
[D] Heptulose

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39. A Parenchyma cell which stores ergastic substance is known as ____:
[A] Chloroplast
[B] Idioblast
[C] Conidioplast
[D] Phragmoblast

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40. Taxonomy is a science that deals with ____:
[A] Anatomy
[B] Morphology
[C] Economic uses
[D] Classification

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