MCQOPTIONS
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MCQOPTIONS
This section includes 371 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Leishmania, the causative agent of kala-azar, multiplies asexually by |
| A. | budding |
| B. | binary fission |
| C. | multiple fission |
| D. | sporogony |
| Answer» C. multiple fission | |
| 52. |
Administering a vaccine provides protection by inducing synthesis of antibodies (proteins) specific of the vaccine. The cell in the body responsible for the production of antibodies is |
| A. | granulocyte |
| B. | lymphocyte |
| C. | erythrocyte (red blood cell) |
| D. | platelet |
| Answer» C. erythrocyte (red blood cell) | |
| 53. |
Biological catalysis in living organisms are known as |
| A. | hormones |
| B. | vitamins |
| C. | steroids |
| D. | enzymes |
| Answer» E. | |
| 54. |
Among the following elements, which one is essential for the transmission of impulses in the nerve fibre ? |
| A. | Calcium |
| B. | Iron |
| C. | Sodium |
| D. | Zinc |
| Answer» D. Zinc | |
| 55. |
Gregor Johann Mendel worked on |
| A. | Edible pea |
| B. | Wild pea |
| C. | Garden pea |
| D. | Pigeon pea |
| Answer» D. Pigeon pea | |
| 56. |
Which one of the following organs breaks down fat to produce cholesterol ? |
| A. | Intestine |
| B. | Liver |
| C. | Lungs |
| D. | Kidneys |
| Answer» C. Lungs | |
| 57. |
Among the given nutrients, milk is a poor source of |
| A. | Calcium |
| B. | Protein |
| C. | Carbohydrate |
| D. | Vitamin C |
| Answer» E. | |
| 58. |
Crocodiles store fats in |
| A. | head |
| B. | stomach |
| C. | tail |
| D. | arteries |
| Answer» D. arteries | |
| 59. |
Jaundice in human beings is the result of |
| A. | incomplete metabolism of biliverdin |
| B. | complete metabolism of biliverdin |
| C. | incomplete metabolism of bilirubin |
| D. | complete metabolism of bilirubin |
| Answer» D. complete metabolism of bilirubin | |
| 60. |
Which part of brain controls fine movement, maintains balance and equilibrium of the body and muscle tone in a human being ? |
| A. | Cerebrum |
| B. | Thalamus |
| C. | Cerebellum |
| D. | Hypothalamus |
| Answer» D. Hypothalamus | |
| 61. |
Which one of the following is an enzyme ? |
| A. | Gastrin |
| B. | Keratin |
| C. | Trypsin |
| D. | Vasopressin |
| Answer» D. Vasopressin | |
| 62. |
Which one of the following insects spreads Kala-azar ? |
| A. | Fruit fly |
| B. | Tsetse fly |
| C. | Sand fly |
| D. | Mosquito |
| Answer» D. Mosquito | |
| 63. |
Stem Cell Therapy (SCT) is not useful for the treatment of which one of the following ailments ? |
| A. | Kidney failure |
| B. | Cancer |
| C. | Brain injury |
| D. | Vision impairment |
| Answer» E. | |
| 64. |
Carbohydrates are stored in plants and animals in the form of |
| A. | cellulose and glucose respectively |
| B. | starch and glycogen respectively |
| C. | starch and glucose respectively |
| D. | cellulose and glycogen respectively |
| Answer» C. starch and glucose respectively | |
| 65. |
ICBN stands for |
| A. | International Council for Botanical Nature |
| B. | International Code of Botanical Nomenclature |
| C. | Indian Code of Botanical Nomenclature |
| D. | None of the above |
| Answer» C. Indian Code of Botanical Nomenclature | |
| 66. |
Ephedrine obtained from the stem of Ephedra is given to cure |
| A. | asthma |
| B. | respiratory disorder |
| C. | cold and cough |
| D. | All of these |
| Answer» E. | |
| 67. |
'Pond silk' is the common name of |
| A. | Spongilla |
| B. | Chlorella |
| C. | Selaginella |
| D. | Spirogyra |
| Answer» E. | |
| 68. |
Which of the following is a non-poisonous snake ? |
| A. | Python |
| B. | Cobra |
| C. | Dryophis |
| D. | All of these |
| Answer» B. Cobra | |
| 69. |
In which phylum nerve cells are found but nerves are absent ? |
| A. | Porifera |
| B. | Coelenterata |
| C. | Platyhelminthes |
| D. | Nemathelminthes |
| Answer» C. Platyhelminthes | |
| 70. |
Lung Fluke is |
| A. | Hymenolepis nana |
| B. | Paragonimus westermani |
| C. | Schistosoma haematobium |
| D. | Echinococcus granulosus |
| Answer» C. Schistosoma haematobium | |
| 71. |
Which of the following is not an insect ? |
| A. | Cockroach |
| B. | Bed bug |
| C. | Mosquito |
| D. | Spider |
| Answer» E. | |
| 72. |
Frog is |
| A. | aminotelic |
| B. | ammonotelic |
| C. | ureotelic |
| D. | uricotelic |
| Answer» D. uricotelic | |
| 73. |
Snakes receive sound vibrations by |
| A. | tympanum |
| B. | body |
| C. | internal ear |
| D. | earth |
| Answer» C. internal ear | |
| 74. |
Which of the following are absent in gymnosperms ? |
| A. | Xylem vessels |
| B. | Xylem fibres |
| C. | Tracheids and fibres |
| D. | All of these |
| Answer» B. Xylem fibres | |
| 75. |
The group of animals belonging to phylum protozoa is |
| A. | Paramecium and Leucosolenia |
| B. | Hydra and Amoeba |
| C. | Euglena and Ascaris |
| D. | Paramecium and Plasmodium |
| Answer» E. | |
| 76. |
A species inhabiting different geographical areas is known as |
| A. | allopatric species |
| B. | sympatric species |
| C. | bio species |
| D. | sibling species |
| Answer» B. sympatric species | |
| 77. |
Which of the following is a fresh water sponge ? |
| A. | Sycon |
| B. | Euspongia |
| C. | Spongilla |
| D. | Pleurobrachia |
| Answer» D. Pleurobrachia | |
| 78. |
Book lungs occur in |
| A. | earthworms |
| B. | insects |
| C. | arachnids |
| D. | mammals |
| Answer» D. mammals | |
| 79. |
Marsupial Kangaroo is |
| A. | viviparous |
| B. | oviparous |
| C. | ovoviviparous |
| D. | a distinct category |
| Answer» B. oviparous | |
| 80. |
The deadliest mushroom is |
| A. | Agaricus |
| B. | Amanita |
| C. | Pleurotus |
| D. | Volvariella |
| Answer» C. Pleurotus | |
| 81. |
The kingdom Protista is primarily made up of organisms that are |
| A. | eukaryotic and multicellular |
| B. | prokaryotic and multicellular |
| C. | prokaryotic and single-celled |
| D. | eukaryotic and single-celled |
| Answer» E. | |
| 82. |
Which one of the following is not a chordate ? |
| A. | Starfish |
| B. | Dolphin |
| C. | Shark |
| D. | Snake |
| Answer» B. Dolphin | |
| 83. |
Two bacteria found to be very useful in genetic engineering experiments are |
| A. | Escherichia and Agrobacterium |
| B. | Nitrobacter and Azotobacter |
| C. | Rhizobium and Diplococcus |
| D. | Nitrosomonas and Klebsiella |
| Answer» B. Nitrobacter and Azotobacter | |
| 84. |
Cloves, used as a spice are derived from which of the following plant parts? |
| A. | Seeeds |
| B. | Fruits |
| C. | Flower buds |
| D. | Leaves |
| Answer» D. Leaves | |
| 85. |
Red snow causing alga is |
| A. | Chamydomonas nivalis |
| B. | Chlamydomonas reinhardtii |
| C. | Chlamydomonas debaryanum |
| D. | Chalmydomonas media |
| Answer» B. Chlamydomonas reinhardtii | |
| 86. |
Which place in India is called "The Golden Mine of Liverworts"? |
| A. | Eastern Himalayas |
| B. | Western Himalayas |
| C. | Western Ghats |
| D. | Eastern Ghats |
| Answer» C. Western Ghats | |
| 87. |
The main thinking part of the brain is |
| A. | midbrain |
| B. | hypothalamus |
| C. | forebrain |
| D. | hindbrain |
| Answer» D. hindbrain | |
| 88. |
Karyotaxonomy is the modern branch of classification which is based on |
| A. | number of chromosomes |
| B. | bands found on chromosomes |
| C. | organic evolution |
| D. | trinomial nomenclature |
| Answer» C. organic evolution | |
| 89. |
Mesosome in a bacterial cell is |
| A. | plasmid |
| B. | connection between two cells |
| C. | plasma membrane infolded for respiration |
| D. | None of these |
| Answer» D. None of these | |
| 90. |
Smooth muscles are likely to be found in |
| A. | muscles of legs |
| B. | muscles of arms |
| C. | stomach |
| D. | heart |
| Answer» D. heart | |
| 91. |
Bacteria are (were) considered more as plants than animals because of the presence of |
| A. | small nucleus |
| B. | plasma membrane |
| C. | cell wall |
| D. | spore formation |
| Answer» D. spore formation | |
| 92. |
Silver fern is |
| A. | Adiantum |
| B. | Cheilanthes |
| C. | Selaginella |
| D. | Equisetum |
| Answer» C. Selaginella | |
| 93. |
The largest invertebrate is |
| A. | octopus |
| B. | squid |
| C. | coral |
| D. | jelly fish |
| Answer» C. coral | |
| 94. |
Ginger is a stem and not a root because |
| A. | it stores food |
| B. | it lacks chlorophyll |
| C. | it has nodes and internodes |
| D. | None of the above |
| Answer» D. None of the above | |
| 95. |
Bone forming cells are |
| A. | osteoclasts |
| B. | osteoblasts |
| C. | chondroblast |
| D. | chondroclasts |
| Answer» C. chondroblast | |
| 96. |
Which of the following acts as an insulator against heat, cold and as a shock-absorber in the body ? |
| A. | Dermis |
| B. | Epidermis |
| C. | Subcutaneous fat layer |
| D. | None of the above |
| Answer» D. None of the above | |
| 97. |
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be |
| A. | hypertonic |
| B. | isotonic |
| C. | hypotonic |
| D. | None of these |
| Answer» D. None of these | |
| 98. |
The shape of chromosome is clearly visible at |
| A. | prophase |
| B. | anaphase |
| C. | metaphase |
| D. | telophase |
| Answer» D. telophase | |
| 99. |
Chromosome start separating at which stage of mitosis |
| A. | early metaphase |
| B. | late metaphase |
| C. | early anaphase |
| D. | early telophase |
| Answer» D. early telophase | |
| 100. |
"Endomitosis" refers to |
| A. | division of nucleus without chromosomal division |
| B. | division of chromosome without nuclear division |
| C. | division of cytoplasm |
| D. | None of the above |
| Answer» C. division of cytoplasm | |