MCQOPTIONS
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MCQOPTIONS
This section includes 275 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Consider the following1. Nucleic acid2. Carbohydrate 3. ProteinA virus is made up of which of the following |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» D. 1, 2 and 3 | |
| 52. |
Bacteria cannot survive in a highly salted pickle because |
| A. | Bacteria get plasmolysed and are consequently killed |
| B. | Salt inhibits reproduction |
| C. | The pickel does not contain nutrient necessary for bacteria to survive |
| D. | Bacteria do not get enough light for photosynthisis |
| Answer» B. Salt inhibits reproduction | |
| 53. |
Microorganism include |
| A. | Bacteria & Virus |
| B. | Bacteria, Virus, Microalgae and Fungi |
| C. | Bacteria, Virus Microalgae, Fungi and Protozoa |
| D. | All animals & Plants |
| Answer» D. All animals & Plants | |
| 54. |
Refrigeration is a process in which |
| A. | Bacteria are destroyed |
| B. | Growth of bacteria reduced |
| C. | Bacteria become inactive |
| D. | Cytoplasm of bacteria contract |
| Answer» D. Cytoplasm of bacteria contract | |
| 55. |
Expanded form of HIV is |
| A. | Human immune virus |
| B. | Human immunity deficiency virus |
| C. | Human immune deficiency syndrome virus |
| D. | None of these |
| Answer» D. None of these | |
| 56. |
In lichen symbiotic relationship between fungi and algae is called |
| A. | Halotism |
| B. | Parasitism |
| C. | Saprophytism |
| D. | None of these |
| Answer» B. Parasitism | |
| 57. |
Litmus paper used in laboratary obtained from |
| A. | Green algae |
| B. | Blue-green algae |
| C. | Lichen |
| D. | Fungi |
| Answer» D. Fungi | |
| 58. |
Fungi which grow on cow dung are called |
| A. | Saxecoles |
| B. | Corticoles |
| C. | Coprophilous |
| D. | Zoophilous |
| Answer» D. Zoophilous | |
| 59. |
Pond Sillc is the common name of |
| A. | Spirogyra |
| B. | Chlorella |
| C. | Ulva |
| D. | Nostoc |
| Answer» B. Chlorella | |
| 60. |
LSD is obtained from |
| A. | Bacteria |
| B. | Fungi |
| C. | 2, 4-D |
| D. | Alcohol |
| Answer» C. 2, 4-D | |
| 61. |
All fungi are always |
| A. | Parasite |
| B. | Autotrophic |
| C. | Heterotrophic |
| D. | Saprohytic |
| Answer» D. Saprohytic | |
| 62. |
Penicillum is a |
| A. | Virus |
| B. | Algae |
| C. | Fungi |
| D. | Bacteria |
| Answer» D. Bacteria | |
| 63. |
Which of the following do not have chlorophyll? |
| A. | Algae |
| B. | Bryophytes |
| C. | Pteridophytes |
| D. | Fungi |
| Answer» E. | |
| 64. |
Which of the following unicellular algae are used as source of oxygen in space research? |
| A. | Ulothrix |
| B. | Spirogyra |
| C. | Chlorella |
| D. | Odogonium |
| Answer» D. Odogonium | |
| 65. |
Red colour of red sea is dua to |
| A. | Moss |
| B. | Algae |
| C. | Fungi |
| D. | Bacteria |
| Answer» C. Fungi | |
| 66. |
The food material in fungi is stored in the form of |
| A. | Starch |
| B. | Glycogen |
| C. | Glucose |
| D. | Sucrose |
| Answer» C. Glucose | |
| 67. |
Cell wall of fungi is made up of |
| A. | Lipids |
| B. | Cellulose |
| C. | Protein |
| D. | Chitin & Hemicellulose |
| Answer» E. | |
| 68. |
Smallest from of bacteria is called |
| A. | Vibrio |
| B. | Cocci |
| C. | Bacilli |
| D. | Spirilla |
| Answer» C. Bacilli | |
| 69. |
Bat can fly in dark because they |
| A. | have strong wings |
| B. | have sharp eyes |
| C. | Produce ultrasonic waves |
| D. | are natural |
| Answer» D. are natural | |
| 70. |
Fungi grown on the bark of tree is |
| A. | Saxocoles |
| B. | Corticoles |
| C. | Tericoles |
| D. | Coprophillus |
| Answer» C. Tericoles | |
| 71. |
Sea known as Sargasso is due to |
| A. | Fungi |
| B. | Angiosperm |
| C. | Algae |
| D. | Bryophyto |
| Answer» D. Bryophyto | |
| 72. |
Lichen which grow on stones are called |
| A. | Saxocoles |
| B. | Corticoles |
| C. | Sexotelus |
| D. | Ascocoles |
| Answer» B. Corticoles | |
| 73. |
Aflatoxion is a |
| A. | Poision produced by fungi |
| B. | Antibiotic |
| C. | Poision in snake |
| D. | Poision produced by snake |
| Answer» B. Antibiotic | |
| 74. |
Kelps are |
| A. | Fresh water algae |
| B. | Marine algae |
| C. | Terrestrial |
| D. | Amphibious |
| Answer» C. Terrestrial | |
| 75. |
Which of the following is found in largest number |
| A. | Fungi |
| B. | Algae |
| C. | Bacteria |
| D. | Insects |
| Answer» D. Insects | |
| 76. |
The antibiotic penicillin was first discovered by |
| A. | Louis Pasteur |
| B. | Robert Koch |
| C. | Alexzander Fleming |
| D. | S. Waksman |
| Answer» D. S. Waksman | |
| 77. |
Which of the following is edible fungi |
| A. | Mucor |
| B. | Penicillum |
| C. | Agaricus |
| D. | Rhizopus |
| Answer» D. Rhizopus | |
| 78. |
Expanded form of AIDS is |
| A. | Acquired immun deficiency syndrome |
| B. | Acquired deficiency syndrome |
| C. | Acquired immunity syndrome |
| D. | Acquired incapablity syndrome |
| Answer» B. Acquired deficiency syndrome | |
| 79. |
Viruses are made up of |
| A. | Protein & lipids |
| B. | Nucleic acid & protein |
| C. | Lipids & Carbohydrate |
| D. | Carbohydrate & Nucleic acid |
| Answer» C. Lipids & Carbohydrate | |
| 80. |
Two bacteria found to be very useful in genetic engineering experiment as |
| A. | Nitrosomonas and klebsiella |
| B. | Escherichia and Agrobacterium |
| C. | Nitrobacter and Azoobacter |
| D. | Rhizobium and Diplococcus |
| Answer» C. Nitrobacter and Azoobacter | |
| 81. |
Mitochondira is absent in |
| A. | Fungi |
| B. | Algae |
| C. | Bacteria |
| D. | Yeast |
| Answer» D. Yeast | |
| 82. |
True nucleus is absent in |
| A. | Fungi |
| B. | Lichane |
| C. | Bacteria |
| D. | Algae |
| Answer» D. Algae | |
| 83. |
"The walking fern" is so named because |
| A. | Its spores are able to walk |
| B. | It is dispersed through the agency of walking animal |
| C. | It propagates vegetatively by its leaf tips |
| D. | It known how to walk by itself |
| Answer» D. It known how to walk by itself | |
| 84. |
Yeast is used in bakery in the preparation of bread because |
| A. | It make on bread hard |
| B. | It make bread soft and spongy |
| C. | It increase the food value of bread |
| D. | It keep the bread fresh |
| Answer» C. It increase the food value of bread | |
| 85. |
Early blight of potato is caused by |
| A. | Phytopthora infestans |
| B. | Alternaria solani |
| C. | Albugo candida |
| D. | Sclerospora graminicola |
| Answer» C. Albugo candida | |
| 86. |
The disease late blight of potato is caused by |
| A. | Fusarium oxysporum |
| B. | Alternaria solani |
| C. | Albuigo candiada |
| D. | Phytophthora infestans |
| Answer» E. | |
| 87. |
In bakery when yeast is added in kneaded flour it become soft and spongy due to |
| A. | Yeast produce benzoic acid |
| B. | Production of CO |
| C. | making the bread spongy |
| D. | Yeast makes the flout soft |
| E. | Yeast produce acetic acid and alcohol which makes the bread soft |
| Answer» C. making the bread spongy | |
| 88. |
Microbial fuel cells are considered a source of substainable energy. why?1. They use living organisms as catalysts to generate electricity from certain susbtracts. 2. They use a variety of inorganic materials as susbtrates.3. They can be installed in waste water treatment plants to cleanse water and produce electrucity.which statements given above is / are correct? |
| A. | 1 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» C. 1 and 3 only | |
| 89. |
The disease Athelet foot is caused by |
| A. | Bacteria |
| B. | Fungi |
| C. | Protozoa |
| D. | Nematod |
| Answer» C. Protozoa | |
| 90. |
On industrial pencillin is obtain from |
| A. | Penicillum notatum |
| B. | penicillum Chrysogenum |
| C. | Penicillum griscofulum |
| D. | Penicillum roqueforti |
| Answer» C. Penicillum griscofulum | |
| 91. |
Algae are important for human being because |
| A. | It can be turned to important diet in future for human |
| B. | It purifies atmosphere |
| C. | It can be grown in water tank |
| D. | None of these |
| Answer» B. It purifies atmosphere | |
| 92. |
Fungi used in baking industry |
| A. | Saccharomyces cerevisial |
| B. | Schizosacchromyces |
| C. | Saccharomyces ellipsaideus |
| D. | Rihzopus stolonifer |
| Answer» B. Schizosacchromyces | |
| 93. |
Consider the following organism?1. Agaricus2. Aspergillus3. Ulothrox4. UlvaWhich of these are algae/ |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 4 |
| D. | 3 and 4 |
| Answer» E. | |
| 94. |
Symbiotic association of mycorrhiza is between |
| A. | Algae & Bryophytes |
| B. | Fungi and root of higher plant |
| C. | Algae & root of Gymnosperm |
| D. | Algae & Fungi |
| Answer» C. Algae & root of Gymnosperm | |
| 95. |
Consider the following statements1. The common blue green algae spirogyra and ulothrix are found in both fresh water ponds and oceans2. The chameleon can look ahead with one eye and at the same time look behind with anotherWhich of these statements is/are correct? |
| A. | Only 1 |
| B. | Only 2 |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» E. | |
| 96. |
Insectivorus plants grow where |
| A. | Soil is deficient in nitrogen |
| B. | Soil is deficient in carbohydrate |
| C. | Vitamin C is required |
| D. | Hormones are required |
| Answer» B. Soil is deficient in carbohydrate | |
| 97. |
Virueses are |
| A. | Complete saprophytes |
| B. | Partial parasites |
| C. | Partial saprophytes |
| D. | Total parasite |
| Answer» E. | |
| 98. |
Spiral shape bacteria is called |
| A. | Diplococus |
| B. | Bacillus |
| C. | Cocus |
| D. | Spirillum |
| Answer» E. | |
| 99. |
Genetic material of a virus is |
| A. | DNA |
| B. | RNA |
| C. | Either DNA or RNA |
| D. | Both DNA and RNA |
| Answer» D. Both DNA and RNA | |
| 100. |
The discovery of viruses was made by |
| A. | Ivanowski |
| B. | Beijierinck |
| C. | Miller |
| D. | Stanley |
| Answer» B. Beijierinck | |