Biology MCQs

31. What is the function of structural proteins?
[A] generates contractile force
[B] controls contraction
[C] proper alignment of filaments
[D] binds O2

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32. Where Kidneys are present in our body?
[A] At back, just above the waist
[B] At back, behind lungs
[C] Near belly button
[D] Behind pancreas gland

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33. Which of the following is a fat-soluble hormone?
[A] Amine hormone
[B] Peptide hormone
[C] Thyroid hormone
[D] Protein hormone

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34. Which of the following is the best fertilizer for paddy?
[A] Azolla pinnata
[B] Bacillus megatherium
[C] Rhizobium meliloti
[D] Bacillus polymyxa

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35. Which of the following nonpathogenic products is used in various crops as well as horticulture and ornamental plants?
[A] Azotobacter
[B] Fungi
[C] Tricho-Card
[D] None of these

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36. Which one of the following endocrine gland is situated in the neck?
[A] Pituitary
[B] Thyroid
[C] Pancreas
[D] Adrenals

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37. What are female gametes called as?

[A] Zygote
[B] Sperms
[C] Embryo
[D] Ova

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38. What is the other name for Vitamin B2?

[A] Dextrose
[B] Riboflavin
[C] Thiamine
[D] Haemoglobin

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39. The presence of air bubble in blood stream is dangerous to life because _____:
[A] The flow of blood is obstructed
[B] The flow of blood increases manifold
[C] Air combines with blood forming a complex
[D] The pressure of blood increases manifold

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40. The thymus gland produces a hormone called ____:
[A] Calcitonin
[B] Thyronine
[C] Thyroxine
[D] Thymosin

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