MCQOPTIONS
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MCQOPTIONS
This section includes 91 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Most fish do not sink in water because of the presence of swim bladderair bladderair sacsair in spongy bones$? |
| A. | I and II are correct |
| B. | II and III are correct |
| C. | III and IV are correct |
| D. | I, II, III and IV are correct |
| Answer» B. II and III are correct | |
| 52. |
Mumps is a disease caused by$? |
| A. | fungus |
| B. | bacterium |
| C. | virus |
| D. | None of these |
| Answer» D. None of these | |
| 53. |
Pulses are a good source of$? |
| A. | carbohydrates |
| B. | fats |
| C. | proteins |
| D. | vitamins |
| Answer» D. vitamins | |
| 54. |
Movements due to light are shown by$? |
| A. | flowering plants |
| B. | lower plants |
| C. | all land plants |
| D. | all the plants |
| Answer» B. lower plants | |
| 55. |
Night blindness is cause by lack of which vitamin?$? |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | Vitamin C |
| D. | Vitamin D |
| Answer» B. Vitamin B | |
| 56. |
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?$? |
| A. | Exact concentration of solution is not given |
| B. | Character of semi permeable membrane is not given |
| C. | The flow of solution is not possible through semi permeable membrane |
| D. | All are incorrect |
| Answer» D. All are incorrect | |
| 57. |
Plants growing on sand are called as$? |
| A. | chasmophytes |
| B. | oxylophytes |
| C. | lithophytes |
| D. | psammophytes |
| Answer» E. | |
| 58. |
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?$? |
| A. | Order |
| B. | Subspecies |
| C. | Class |
| D. | Genus |
| Answer» D. Genus | |
| 59. |
Monotremes are unique mammals because they$? |
| A. | posses hair |
| B. | give birth to live young |
| C. | secret milk in a pouch |
| D. | lay eggs |
| Answer» E. | |
| 60. |
Prokaryotic cells lack$? |
| A. | nucleolus |
| B. | nuclear membrane |
| C. | membrane bound by organelles |
| D. | All of these |
| Answer» E. | |
| 61. |
Plants absorb most part of water needed by them through their$? |
| A. | embryonic zone |
| B. | growing point |
| C. | root hairs |
| D. | zone of elongation |
| Answer» D. zone of elongation | |
| 62. |
Neurospora is used as genetic material because$? |
| A. | it has short life cycle of 10 days |
| B. | the product of single meiosis can be easily analysed |
| C. | meiotic products are linearly arranged in the form of ordered tetrads |
| D. | is a diploid fungus |
| Answer» B. the product of single meiosis can be easily analysed | |
| 63. |
Plants that grow in saline water are called$? |
| A. | halophytes |
| B. | hydrophytes |
| C. | mesophytes |
| D. | thallophytes |
| Answer» B. hydrophytes | |
| 64. |
Plants that grow under average temperature and moisture are called:$? |
| A. | halophytes |
| B. | hydrophytes |
| C. | mesophytes |
| D. | xerophytes |
| Answer» D. xerophytes | |
| 65. |
Ozone hole refers to |
| A. | hole in ozone layer |
| B. | decrease in the ozone layer in troposphere |
| C. | decrease in thickness of ozone layer in stratosphere |
| D. | increase in the thickness of ozone layer in troposphere |
| Answer» D. increase in the thickness of ozone layer in troposphere | |
| 66. |
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false? |
| A. | By cyanobacteria |
| B. | By electrical discharges in the atmosphere |
| C. | By industrially synthesised fertilizer |
| D. | By denitrification |
| Answer» E. | |
| 67. |
Photosynthesis generally takes place in which parts of the plant? |
| A. | Leaf and other chloroplast bearing parts |
| B. | steam and leaf |
| C. | Roots and chloroplast bearing parts |
| D. | Bark and leaf |
| Answer» B. steam and leaf | |
| 68. |
Most abundant tissues of our body are |
| A. | muscular |
| B. | connective |
| C. | epithelial |
| D. | nervous |
| Answer» B. connective | |
| 69. |
One of the following is most suitable for study of mutations |
| A. | Haploids |
| B. | Diploids |
| C. | Tetraploids |
| D. | Polyploid |
| Answer» B. Diploids | |
| 70. |
Our major foods, fibres, spices, fruits and beverage crops are |
| A. | flowering plants |
| B. | gymnosperms plants |
| C. | pteridophytes |
| D. | bryophytes |
| Answer» B. gymnosperms plants | |
| 71. |
Norepinephrine increases |
| A. | respiration |
| B. | urine production |
| C. | saliva production |
| D. | blood pressure |
| Answer» E. | |
| 72. |
Plant have ____ while animals lack it. |
| A. | starch |
| B. | cellulose |
| C. | protein |
| D. | fat |
| Answer» C. protein | |
| 73. |
Plants developing in dry conditions are |
| A. | xerophytes |
| B. | mesophytes |
| C. | lithophytes |
| D. | hydrophytes |
| Answer» B. mesophytes | |
| 74. |
Potato is a modified form (outgrowth) of: |
| A. | root |
| B. | stem |
| C. | fruit |
| D. | leaf |
| Answer» C. fruit | |
| 75. |
Plant development is influenced by |
| A. | quality of light only |
| B. | quality and quantity of light |
| C. | quality and duration of light |
| D. | quality, quantity and duration of light |
| Answer» E. | |
| 76. |
Plants hormone that induces cell division is |
| A. | auxins |
| B. | gibberellins |
| C. | kinins |
| D. | domins |
| Answer» C. kinins | |
| 77. |
Other than spreading malaria, anopheles mosquitoes are also vectors of |
| A. | dengue fever |
| B. | filariasis |
| C. | encephalitis |
| D. | yellow fever |
| Answer» C. encephalitis | |
| 78. |
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement? |
| A. | Having waited a day, it is too late to take an antibiotic |
| B. | You need an antiseptic, not an antibiotic |
| C. | You need to be vaccinated instead of taking an antibiotic |
| D. | You are infected by a virus |
| Answer» E. | |
| 79. |
Ordinary table salt is sodium chloride. What is baking soda? |
| A. | Potassium chloride |
| B. | Potassium carbonate |
| C. | Potassium hydroxide |
| D. | Sodium bicarbonate |
| Answer» E. | |
| 80. |
Pollen grains in plants are produced in |
| A. | roots |
| B. | leaves |
| C. | flower |
| D. | stem |
| Answer» D. stem | |
| 81. |
Movement of cell against concentration gradient is called |
| A. | osmosis |
| B. | active transport |
| C. | diffusion |
| D. | passive transport |
| Answer» C. diffusion | |
| 82. |
Most common disease of poultry in India is |
| A. | fowl pox |
| B. | tick fever |
| C. | ranikhet |
| D. | coryza |
| Answer» D. coryza | |
| 83. |
Organic Substances which, in very small amounts, control growth and development called |
| A. | vitamins |
| B. | hormones |
| C. | enzymes |
| D. | None of the above |
| Answer» C. enzymes | |
| 84. |
Pigmentation of skin is due to |
| A. | lymphocytes |
| B. | monocytes |
| C. | leucocytes |
| D. | melanocytes |
| Answer» E. | |
| 85. |
Plant bends towards the source of light on account of the movement of curvature known as |
| A. | geotropism |
| B. | thigmotropism |
| C. | chemotropism |
| D. | phototropism |
| Answer» E. | |
| 86. |
out of proteins, lipids and carbohydrates present in a cell membrane, what is true? |
| A. | Lipids are maximum |
| B. | Carbohydrates are minimum |
| C. | Carbohydrates are maximum |
| D. | All three are in equal proportion |
| Answer» C. Carbohydrates are maximum | |
| 87. |
Normal adult human male has |
| A. | 10 gram of haemoglobin/100 gram of blood |
| B. | 14 gram of haemoglobin/100 gram of blood |
| C. | 18 gram of haemoglobin/100 gram of blood |
| D. | 24 gram of haemoglobin/100 gram of blood |
| Answer» C. 18 gram of haemoglobin/100 gram of blood | |
| 88. |
Most highly intelligent mammals are |
| A. | whales |
| B. | dolphins |
| C. | elephants |
| D. | kangaroos |
| Answer» C. elephants | |
| 89. |
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with |
| A. | all gymnosperms, except conifers |
| B. | only angiosperms |
| C. | only conifers |
| D. | angiosperms and all gymnosperms except conifers |
| Answer» D. angiosperms and all gymnosperms except conifers | |
| 90. |
Placenta is the structure formed |
| A. | by the union of foetal and uterine tissue |
| B. | by foetus only |
| C. | by fusion of germ layers |
| D. | None of these |
| Answer» B. by foetus only | |
| 91. |
Primary phloem develops from |
| A. | lateral meristem |
| B. | protoderm |
| C. | extrastelar cambium |
| D. | provascular tissue |
| Answer» E. | |