MCQOPTIONS
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MCQOPTIONS
This section includes 470 Mcqs, each offering curated multiple-choice questions to sharpen your Graduate Aptitude Test (GATE) knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
The Ozone layer saves from lethal UV. It mainly absorbs- |
| A. | UV-A |
| B. | UV-B |
| C. | UV-A & B |
| D. | UV-A & C |
| Answer» B. UV-B | |
| 452. |
The maximum water pollution is caused by- |
| A. | Detergents |
| B. | Pesticides |
| C. | Industrial wastes |
| D. | Ammonia |
| Answer» C. Industrial wastes | |
| 453. |
Minimata disease is due to pollution by |
| A. | Organic waste into drinking water |
| B. | Oil spills in oceans |
| C. | Industrial waste mercury into fishing water |
| D. | Entry of Cadmium into drinking water |
| Answer» C. Industrial waste mercury into fishing water | |
| 454. |
The toxicity of which of the heavy metals leads to liver cirrhosis? |
| A. | Copper |
| B. | Lead |
| C. | Mercury |
| D. | Zinc |
| Answer» B. Lead | |
| 455. |
BCG immunisation is for |
| A. | Measles |
| B. | Tuberculosis |
| C. | Diptheria |
| D. | Leprosy |
| Answer» C. Diptheria | |
| 456. |
Insufficient supply of blood in human body is referred as |
| A. | Ischemia |
| B. | Hyperemia |
| C. | Hemostasis |
| D. | Haemorrhage |
| Answer» B. Hyperemia | |
| 457. |
Febries are what kind of cells ? |
| A. | Chloroplast |
| B. | Collenchymatous |
| C. | Sclerenchymatous |
| D. | Parenchymatous |
| Answer» D. Parenchymatous | |
| 458. |
Which pollutant may lead to 'Black foot disease' ? |
| A. | Cd |
| B. | Hg |
| C. | As |
| D. | Cu |
| Answer» D. Cu | |
| 459. |
Pollination is best defined as . . . |
| A. | Trasfer of pollen from another to stigma |
| B. | Germination of pollen grains |
| C. | Growth of pollen tube in ovule |
| D. | Visiting flowers by insects |
| Answer» B. Germination of pollen grains | |
| 460. |
Oncogene is responsible for |
| A. | Lung disease |
| B. | Typhoid |
| C. | Cancer |
| D. | Malaria |
| Answer» D. Malaria | |
| 461. |
MDT is used for disease : |
| A. | Tuberculosis |
| B. | Leprosy |
| C. | Diptheria |
| D. | Polio |
| Answer» C. Diptheria | |
| 462. |
Fermentation takes place in which componenet of a cell ? |
| A. | Cytoplasm |
| B. | Mitochondria |
| C. | Both A and B |
| D. | Nucleus |
| Answer» B. Mitochondria | |
| 463. |
Which tissue of plants conducts food to its body? |
| A. | Xylem |
| B. | Phloem |
| C. | Parenchyma |
| D. | Selerides |
| Answer» C. Parenchyma | |
| 464. |
Leprosy bacillus was invented by : |
| A. | Koch |
| B. | Hansen |
| C. | Fleming |
| D. | Harvey |
| Answer» C. Fleming | |
| 465. |
Which fungus is known as 'Green Mold' ? |
| A. | Aspergillus |
| B. | Saccharomyces |
| C. | Mucus |
| D. | Penicillium |
| Answer» E. | |
| 466. |
Fresh Yeast cells are good source of : |
| A. | Vitamin-B |
| B. | Caffeine |
| C. | Nicotine |
| D. | Morphine |
| Answer» B. Caffeine | |
| 467. |
Typhoid is caused by : |
| A. | Pseudomonas sp. |
| B. | Staphyoeoccus |
| C. | Bacillus |
| D. | Salmonella typhi |
| Answer» E. | |
| 468. |
Main use of salt in diet is to : |
| A. | ease the process of cooking |
| B. | increase the taste |
| C. | produce small amount of hydrochloric acid required for digestion |
| D. | inclease solubility of food particles in water |
| Answer» D. inclease solubility of food particles in water | |
| 469. |
Cell or tissue death within a living body is called as : |
| A. | Neutrophillia |
| B. | Nephrosis |
| C. | Necrosis |
| D. | Nepolasis |
| Answer» D. Nepolasis | |
| 470. |
If the radius of blood vessels of a person decreases his/her blood pressure will |
| A. | Decrease |
| B. | Increase |
| C. | Remain Same |
| D. | Becomes zero |
| Answer» C. Remain Same | |