MCQOPTIONS
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MCQOPTIONS
This section includes 1075 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 551. |
Bee Keeping is known as |
| A. | Sericulture |
| B. | Apiculture |
| C. | Aquaculture |
| D. | Agriculture |
| Answer» C. Aquaculture | |
| 552. |
Which one of the following is a viral disease in man ? |
| A. | Mumps |
| B. | plague |
| C. | Cholera |
| D. | Syphilis |
| Answer» B. plague | |
| 553. |
The large amount of sugar present in human blood is |
| A. | sucrose |
| B. | glucose |
| C. | fructose |
| D. | lactose |
| Answer» C. fructose | |
| 554. |
Respiration process requires |
| A. | heat |
| B. | water |
| C. | oxygen |
| D. | sunlight |
| Answer» D. sunlight | |
| 555. |
Cereals are a rich source of |
| A. | Starch |
| B. | Glucose |
| C. | Fructose |
| D. | Maltose |
| Answer» B. Glucose | |
| 556. |
Animals l iving in the three trunks are known as |
| A. | Arboreal |
| B. | Volant |
| C. | Amphibious |
| D. | Aquaticx |
| Answer» B. Volant | |
| 557. |
Cell becomes turgid because of |
| A. | Plasmolysis |
| B. | Exosmosis |
| C. | Endosmosis |
| D. | Diffusion |
| Answer» D. Diffusion | |
| 558. |
Which one of the following is also called the power plants of the cell ? |
| A. | Golgi body |
| B. | Mitochondrion |
| C. | Ribosome |
| D. | Lysosome |
| Answer» C. Ribosome | |
| 559. |
Plasma membrane in eukaryotic cells is made up of |
| A. | Phospholipid |
| B. | Lipoprotein |
| C. | Phospholipo-protein |
| D. | Phospho-protein |
| Answer» B. Lipoprotein | |
| 560. |
The function of Trypsin is to |
| A. | break down fats |
| B. | synthesize proteins |
| C. | break down proteins |
| D. | break down carbohydrates |
| Answer» D. break down carbohydrates | |
| 561. |
Which of the following is not a part of the Darwin s theory of evolution? |
| A. | Natural selection |
| B. | Struggle for existence |
| C. | Survival of the fittest |
| D. | Inheritance of acquired characters |
| Answer» E. | |
| 562. |
Which of the following snakes killed for its beautiful skin has been declared an endangered species ? |
| A. | Python |
| B. | King Cobra |
| C. | Russel s Viper |
| D. | Krait |
| Answer» D. Krait | |
| 563. |
Ringworm is a ....... disease. |
| A. | Bacterial |
| B. | Protozoan |
| C. | Viral |
| D. | Fungal |
| Answer» E. | |
| 564. |
The colour of the eye depends upon the pigment present in |
| A. | cornea |
| B. | iris |
| C. | rods |
| D. | cones |
| Answer» C. rods | |
| 565. |
The brain of human adult weighs about |
| A. | 1200 1300 gm |
| B. | 1600 2000 gm |
| C. | 500 800 gm |
| D. | 100 200 gm |
| Answer» B. 1600 2000 gm | |
| 566. |
From which part of the plant is clove, the commonly used spice, obtained ? |
| A. | Fruit |
| B. | Flower bud |
| C. | Stem |
| D. | Root |
| Answer» C. Stem | |
| 567. |
The concentration of which of the following decreases in anaemia ? |
| A. | Haemoglobin |
| B. | Collagen |
| C. | Hyoglobin |
| D. | Myosin |
| Answer» B. Collagen | |
| 568. |
Deep fried food materials are carcinogenic because they are rich in |
| A. | Fats |
| B. | Hydrocarbons |
| C. | Cooking oil |
| D. | Nicotine |
| Answer» C. Cooking oil | |
| 569. |
Which one of these is a communicable disease ? |
| A. | Diabetes |
| B. | Diphtheria |
| C. | Arthritis |
| D. | Cancer |
| Answer» C. Arthritis | |
| 570. |
Which of the following diseases usually spreads through air ? |
| A. | Plague |
| B. | Typhoid |
| C. | Tuberculosis |
| D. | Cholera |
| Answer» D. Cholera | |
| 571. |
Cell or tissue death within a living body is called as |
| A. | Neutrophilia |
| B. | Nephrosis |
| C. | Necrosis |
| D. | Neoplasia |
| Answer» D. Neoplasia | |
| 572. |
If the radius of blood vessels of a person decreases his/her blood pressure will |
| A. | increase |
| B. | decrease |
| C. | remain unaffected |
| D. | increase for males and decrease for females |
| Answer» B. decrease | |
| 573. |
An ECG shows the functioning of the |
| A. | brain |
| B. | heart |
| C. | lungs |
| D. | kidneys |
| Answer» C. lungs | |
| 574. |
The deficiency of Vitamin B causes |
| A. | Scurvy |
| B. | Dermatitis |
| C. | Beri Beri |
| D. | Phynoderma |
| Answer» D. Phynoderma | |
| 575. |
Which of the part of tongue bears cells for sour taste ? |
| A. | Front |
| B. | Back |
| C. | Sides |
| D. | Middle |
| Answer» D. Middle | |
| 576. |
Mineral constituent of chlorophyll is |
| A. | Iron |
| B. | Magnesium |
| C. | Calcium |
| D. | Potassium |
| Answer» C. Calcium | |
| 577. |
Maximum harm to a tree is caused by |
| A. | Loss of half of its leaves |
| B. | loss of all leaves |
| C. | |
| D. | loss of half of its branches |
| E. | loss of its bark |
| Answer» C. | |
| 578. |
The ability of the eye to see in the dark, is due to the production of a purple pigment known as |
| A. | Carotene |
| B. | Rhodopsin |
| C. | Iodopsin |
| D. | Retinene |
| Answer» E. | |
| 579. |
Pinna (external ear) is present in |
| A. | Amphibian |
| B. | Fish |
| C. | Mammal |
| D. | Reptile |
| Answer» D. Reptile | |
| 580. |
Rotation of crops is essential : |
| A. | For increasing the quantity of minerals. |
| B. | For decreasing the quantity of proteins. |
| C. | For getting different kinds of crops. |
| D. | For increasing fertility of the soil. |
| Answer» E. | |
| 581. |
In water treatment plant, use of chloramines ensures _____ |
| A. | taste and odour control |
| B. | weed control in reservoirs |
| C. | disinfection |
| D. | removal of permanent hardness |
| Answer» D. removal of permanent hardness | |
| 582. |
The nitrogen in the ecosystem is circulated by |
| A. | Earthworms |
| B. | Bacteria |
| C. | Fungi |
| D. | Protozoa |
| Answer» C. Fungi | |
| 583. |
Which of these is produced by a mould? |
| A. | Chloroform |
| B. | Glycerine |
| C. | Penicillin |
| D. | Quinine |
| Answer» D. Quinine | |
| 584. |
The normal RBC count in adult male is |
| A. | 5.5 million |
| B. | 5.0 million |
| C. | |
| D. | 4.5 million |
| E. | 4.0 million |
| Answer» C. | |
| 585. |
Wings of birds are: |
| A. | Modified hind limbs |
| B. | |
| C. | New structure |
| D. | Integumentary outgrowth |
| E. | Modified fore limbs |
| Answer» E. Modified fore limbs | |
| 586. |
What is the other name for Vitamin B |
| A. | Thiamine |
| B. | Haemoglobin |
| C. | Riboflavin |
| D. | Dextrose |
| Answer» D. Dextrose | |
| 587. |
Addition oxcessive amounts of heat to a lake is referred to as : |
| A. | Refrigeration effect |
| B. | Green House effect |
| C. | Thermal pollution |
| D. | Heat Bloom |
| Answer» D. Heat Bloom | |
| 588. |
.Beak is formed by |
| A. | cheeks |
| B. | jaws |
| C. | teeth |
| D. | None |
| Answer» C. teeth | |
| 589. |
The seeds of certain plants fail to germinate if they do not pass through the digestive tract of fruit-eating birds. This is due to |
| A. | hibernation |
| B. | seed coat impermeability |
| C. | infertility |
| D. | vegetative reproduction |
| Answer» C. infertility | |
| 590. |
The body temperature is regulated by |
| A. | Pituitory gland |
| B. | Hypothalamus |
| C. | Pineal gland |
| D. | Thyroid gland |
| Answer» C. Pineal gland | |
| 591. |
Silk is obtained from |
| A. | Mulberry tree |
| B. | Saliva of the silk worm |
| C. | Larvae of silk worm |
| D. | Cocoon of silk worm |
| E. | None of these |
| Answer» F. | |
| 592. |
The vitamin that helps to prevent infections in the human body is |
| A. | vitamin A |
| B. | vitamin B |
| C. | vitamin C |
| D. | vitamin D |
| Answer» D. vitamin D | |
| 593. |
Amoebiasis is causing |
| A. | Dysentery |
| B. | Fever |
| C. | Severe cold |
| D. | Headache and cold |
| Answer» B. Fever | |
| 594. |
Which one of the following is true regarding plant cells and animal cells ? |
| A. | Plant cells contain chloroplast while animal cells do not. |
| B. | Plant cells are small while animal cells are large in size |
| C. | Plant cells contain nucleus while animal cells do not |
| D. | Plant cells and animal cells are similar in all respects |
| Answer» B. Plant cells are small while animal cells are large in size | |
| 595. |
A disease caused by Protozoa is |
| A. | Common cold |
| B. | Pneumonia |
| C. | Malaria |
| D. | Cholera |
| Answer» D. Cholera | |
| 596. |
The casual organism of Polio is : |
| A. | A fungi |
| B. | A virus |
| C. | A worm |
| D. | A bacteria |
| Answer» C. A worm | |
| 597. |
Why excessive heating and repeated use of cooking oil are most undesirable ? |
| A. | The oil vapour can cause indoor pollution |
| B. | Carcinogenic substances like benzpyrene are produced |
| C. | Nutrient value of food is lost |
| D. | Loss and wastage of oil |
| Answer» C. Nutrient value of food is lost | |
| 598. |
During photosynthesis green plants absorb |
| A. | nitrogen |
| B. | carbon dioxide |
| C. | carbon monoxide |
| D. | oxygen |
| Answer» C. carbon monoxide | |
| 599. |
Tamiflu is frontline drug against |
| A. | bird flu |
| B. | cancer |
| C. | AIDS |
| D. | polio |
| Answer» B. cancer | |
| 600. |
Cockroach cannot survive in the water because its respiratory organ is |
| A. | Gill |
| B. | Trachea |
| C. | Book lung |
| D. | Pulmonary Sac |
| Answer» C. Book lung | |