MCQOPTIONS
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MCQOPTIONS
This section includes 903 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
Immunity which is achieved by introduction of antigen artificially in body is called |
| A. | active immunity |
| B. | passive immunity |
| C. | artificially induced immunity |
| D. | auto-immunity |
| Answer» D. auto-immunity | |
| 602. |
Glucose, fructose and galactose (C₆H₁₂O₆) are |
| A. | simple sugars |
| B. | polymer sugar |
| C. | complex sugar |
| D. | compound sugar |
| Answer» B. polymer sugar | |
| 603. |
In dim light, the circular muscles |
| A. | contract |
| B. | relax |
| C. | denature |
| D. | inactivate |
| Answer» C. denature | |
| 604. |
Atherosclerosis causes |
| A. | fatty deposits on the inner wall of arteries |
| B. | lumen becoming narrower |
| C. | blockage in blood vessels |
| D. | all of above |
| Answer» E. | |
| 605. |
Number of alkaloids in opium are at least |
| A. | 20 |
| B. | 25 |
| C. | 30 |
| D. | 35 |
| Answer» C. 30 | |
| 606. |
Friends teasing that non-smoker is not sporting enough and lively turns into |
| A. | teasing pressure |
| B. | community-pressure |
| C. | moral-pressure |
| D. | peer group pressure |
| Answer» E. | |
| 607. |
Nitrates (NO₃⁻¹) and phosphates (PO₄⁻³) reach underground water with |
| A. | acid rains |
| B. | fertilizers washed away by rain water |
| C. | decomposition of organic compounds by anaerobic bacteria |
| D. | decomposition of organic compounds by aerobic bacteria |
| Answer» C. decomposition of organic compounds by anaerobic bacteria | |
| 608. |
To make their own food, green plants take in |
| A. | organic food substances |
| B. | raw materials |
| C. | water |
| D. | all of above |
| Answer» E. | |
| 609. |
More than 90% families of flowering plants have |
| A. | hyphae |
| B. | mycorrhizae |
| C. | chloroplast |
| D. | nutrients |
| Answer» C. chloroplast | |
| 610. |
Death of fish in lakes and rivers in some countries has been attributed to |
| A. | gaseous pollutants |
| B. | air toxics |
| C. | acid rains |
| D. | pollution |
| Answer» D. pollution | |
| 611. |
Incipient plasmolysis is stage when plasmolysis |
| A. | end |
| B. | transition |
| C. | about to start |
| D. | cease |
| Answer» D. cease | |
| 612. |
According to homeostatic division, Crocodiles are |
| A. | poikilothermic |
| B. | homoeothermic |
| C. | heterothermic |
| D. | hypoeothermic |
| Answer» B. homoeothermic | |
| 613. |
Conservation of resources can be tackled through |
| A. | human population control only |
| B. | by reducing pollution only |
| C. | increasing use of resources |
| D. | human population control and by reducing pollution |
| Answer» E. | |
| 614. |
Heart attack or stroke results due to |
| A. | dilution of blood |
| B. | blood clotting |
| C. | lack of sleep |
| D. | feeling hungry all the time |
| Answer» C. lack of sleep | |
| 615. |
The drug postum dates back to |
| A. | 1893 |
| B. | 2700 BC |
| C. | 1000 years |
| D. | 1975 |
| Answer» B. 2700 BC | |
| 616. |
Sugar (CₙH₂ₘOₘ) formed in mature leaves may |
| A. | travel only downwards |
| B. | travel only upwards |
| C. | may travel both upwards and downwards |
| D. | get stored in leaves |
| Answer» D. get stored in leaves | |
| 617. |
Formation of carboxyhemoglobin |
| A. | does not readily give up carbon monoxide |
| B. | can result in a persons death |
| C. | can suffocate a person |
| D. | can squeeze through capillaries |
| Answer» B. can result in a persons death | |
| 618. |
Lub' sound is produced when tricuspid and bicuspid valves are |
| A. | opened |
| B. | closed |
| C. | half-opened |
| D. | half-closed |
| Answer» C. half-opened | |
| 619. |
Transpiration is very essential for plants as it |
| A. | cools |
| B. | exchange gases |
| C. | removes water |
| D. | uptake water |
| Answer» B. exchange gases | |
| 620. |
Double circuit heart is present in |
| A. | reptiles |
| B. | birds |
| C. | mammals |
| D. | All of the Above |
| Answer» E. | |
| 621. |
Proteins which are synthesized by blood to protect body from nucleic acids and toxins of invading organism |
| A. | interferon |
| B. | antitoxins |
| C. | antigens |
| D. | Both a and b |
| Answer» E. | |
| 622. |
In carbon cycle, the flow of energy is |
| A. | linear |
| B. | cyclical |
| C. | reversible |
| D. | irreversible |
| Answer» B. cyclical | |
| 623. |
Advantages of seed dispersal includes |
| A. | less spread of disease |
| B. | plants colonizing new habitats |
| C. | prevention of overcrowding of plants in same habitat |
| D. | all of above |
| Answer» E. | |
| 624. |
Gaseous pollutants may be carried to other countries to |
| A. | form acid rain |
| B. | cause acidification of soil |
| C. | form alkaline rain |
| D. | cause water pollution |
| Answer» B. cause acidification of soil | |
| 625. |
In Ecosystem pyrethrum is used in |
| A. | insecticides |
| B. | quinine |
| C. | morphine |
| D. | antibiotics |
| Answer» B. quinine | |
| 626. |
Groups of different tissues working together are called as |
| A. | cell |
| B. | muscle |
| C. | organ |
| D. | system |
| Answer» D. system | |
| 627. |
Narrow tolerance of oxygen (O₂) is found in |
| A. | humans |
| B. | plants |
| C. | mammals |
| D. | fish |
| Answer» E. | |
| 628. |
All hormones move in body via blood and |
| A. | lymphs |
| B. | plasma and bones |
| C. | plasma |
| D. | antigens |
| Answer» D. antigens | |
| 629. |
Soluble plasma protein is |
| A. | fibrin |
| B. | fibrinogen |
| C. | casein |
| D. | caseinogen |
| Answer» C. casein | |
| 630. |
Clot facilitate an injury by covering it to prevent further bleeding until damaged tissue can be |
| A. | produce |
| B. | repair |
| C. | destroyed |
| D. | phagocytosed |
| Answer» C. destroyed | |
| 631. |
Transport of deoxygenated blood from right ventricle to lungs is done by |
| A. | arterial circulation |
| B. | venous circulation |
| C. | pulmonary circulation |
| D. | systemic circulation |
| Answer» D. systemic circulation | |
| 632. |
Plasma is composed of dissolved |
| A. | proteins |
| B. | salts |
| C. | wastes |
| D. | All of the Above |
| Answer» E. | |
| 633. |
Together, HCl (Hydrochloric Acid), rennin and pepsin form the |
| A. | bile juice |
| B. | pancreatic juice |
| C. | gastric juice |
| D. | intestinal juice |
| Answer» D. intestinal juice | |
| 634. |
Healthy consumption of fats is |
| A. | unsaturated fats |
| B. | saturated fats |
| C. | blubber |
| D. | glycogen |
| Answer» C. blubber | |
| 635. |
Water-soluble vitamins need to be supplied |
| A. | daily |
| B. | weekly |
| C. | fortnightly |
| D. | yearly |
| Answer» B. weekly | |
| 636. |
In which lipase enzyme is found |
| A. | pancreatic juice only |
| B. | intestinal juice only |
| C. | liver juice |
| D. | pancreatic and intestinal juices |
| Answer» E. | |
| 637. |
In anaerobic (without O₂) environment, the sugar (CₙH₂ₘOₘ) in dough is converted into |
| A. | glucose |
| B. | water |
| C. | alcohol |
| D. | carbon monoxide |
| Answer» D. carbon monoxide | |
| 638. |
Outcomes of long term alcohol (CₙH₂ₙ₊₁OH) consumption includes |
| A. | liver cirrhosis only |
| B. | gastric ulcers only |
| C. | intestinal injuries |
| D. | liver cirrhosis and gastric ulcers |
| Answer» E. | |
| 639. |
All are wrong about denatured enzyme, but |
| A. | looses its concave structure |
| B. | looses its active sites |
| C. | gets divided into many smaller enzymes |
| D. | becomes even more quicker in chemical reactions |
| Answer» C. gets divided into many smaller enzymes | |
| 640. |
Carbon dioxide (CO₂) is released in the atmosphere through |
| A. | respiration |
| B. | combustion |
| C. | decay |
| D. | all of above |
| Answer» E. | |
| 641. |
During weight loss, an increased protein diet |
| A. | is good for health |
| B. | helps build muscles and cuts fats |
| C. | is necessary for vital processes |
| D. | may increase the amount of nitrogen in body |
| Answer» E. | |
| 642. |
Lactose (C₁₂H₂₂O₁₁) is largely obtained from |
| A. | malt sugar |
| B. | grape sugar |
| C. | milk sugar |
| D. | cane sugar |
| Answer» D. cane sugar | |
| 643. |
Cuticular transpiration occurs in |
| A. | microorganisms |
| B. | animals |
| C. | plants |
| D. | none of others |
| Answer» D. none of others | |
| 644. |
Exhaust motor vehicle is the main source of |
| A. | manganese |
| B. | carbon monoxide |
| C. | sulphur dioxide |
| D. | nitrogen oxide |
| Answer» C. sulphur dioxide | |
| 645. |
Major components of an immune system include |
| A. | T-lymphocytes |
| B. | B-lymphocyte |
| C. | antibodies |
| D. | All of the Above |
| Answer» E. | |
| 646. |
Formation of thrombus in heart can lead to |
| A. | heart burning |
| B. | heart attack |
| C. | heart blockage |
| D. | heart failure |
| Answer» C. heart blockage | |
| 647. |
When a person becomes ill due to infection and survives, this activity is called |
| A. | naturally induced immunity |
| B. | auto-immune response |
| C. | immuno-survival |
| D. | Both a and b |
| Answer» D. Both a and b | |
| 648. |
One of the waste product of respiration is |
| A. | carbon dioxide and oxygen |
| B. | energy |
| C. | fats |
| D. | carbohydrates |
| Answer» B. energy | |
| 649. |
Percentage of plasma in human blood is about |
| A. | 50% |
| B. | 35% |
| C. | 55% |
| D. | 40% |
| Answer» D. 40% | |
| 650. |
Renal retention of salts and water lead to disease |
| A. | kidney stones |
| B. | oedema |
| C. | leucaemia |
| D. | Anemia |
| Answer» C. leucaemia | |