General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

31. Which light is least effective in photosynthesis?
[A] Blue light
[B] Green light
[C] Red light
[D] Sunlight

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32. What is the main function of white blood cells (WBCs)?
[A] To fight against infection
[B] To transport oxygen
[C] Blood clotting
[D] To provide red colour to blood

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33. The heat treatment applied to milk before distribution to stabilize and to remove disease causing bacteria is called as ____:
[A] Coagulation
[B] Fermentation
[C] Pasteurisation
[D] Homogenisation

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34. An insect is an organism having _____:
[A] Three pairs of legs
[B] Four pairs of legs
[C] Head, thorax and abdomen
[D] Pair of wings and antenna

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35. Which among the following is given to a player for instant energy?
[A] Protein
[B] Vitamin
[C] Calcium
[D] Carbohydrates

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36. Which organ of human body secretes Insulin?
[A] Liver
[B] Kidney
[C] Pancreas
[D] Gall bladder

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37. The gene which exhibites multiple effects is known as ____:
[A] Complementary
[B] Polygene
[C] Pleiotropic
[D] Pseudogene

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38. What would be the formula of Fructose?
[A] C12H22O11
[B] C6H12O6
[C] C12H19Cl3O8
[D] C6H10O8

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39. Yellow spots on citrus leaves is due to the deficiency of _____:
[A] Zinc
[B] Iron
[C] Boron
[D] Magnesium

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40. The deciduous trees will _____:
[A] Shed their leaves every year
[B] Not lose their leaves
[C] Synthesise their own food
[D] Depend on others for their food

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