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.
| 301. |
Removal of metabolic waste is not the only method to get rid of them. Other means include |
| A. | depositing them into dead cells |
| B. | converted into harmless insoluble substances |
| C. | converted to soluble harmless substances |
| D. | converted into soluble harmful substances |
| Answer» C. converted to soluble harmless substances | |
| 302. |
Air pressure in thorax increases in |
| A. | anaerobic respiration |
| B. | inspiration |
| C. | expiration |
| D. | digestion |
| Answer» D. digestion | |
| 303. |
Fibrin threads are a form of |
| A. | soluble starch |
| B. | soluble proteins |
| C. | insoluble proteins |
| D. | insoluble polysaccharide |
| Answer» D. insoluble polysaccharide | |
| 304. |
Fibrinogen is a form of |
| A. | soluble starch |
| B. | soluble proteins |
| C. | insoluble proteins |
| D. | insoluble polysaccharide |
| Answer» C. insoluble proteins | |
| 305. |
General feeling of irritability and tiredness may be due to the lack of |
| A. | proteins |
| B. | carbohydrates |
| C. | fats |
| D. | vitamins |
| Answer» E. | |
| 306. |
Lack of fat soluble vitamins causes |
| A. | internal bleeding of gums |
| B. | loosening of teeth |
| C. | painful swollen joints |
| D. | multiple fractures |
| Answer» E. | |
| 307. |
Largest and only legal producer of opium is |
| A. | Singapore |
| B. | India |
| C. | Afghanistan |
| D. | USA |
| Answer» C. Afghanistan | |
| 308. |
Disease arising due to vitamin deficiency is called |
| A. | scurvy |
| B. | beriberi |
| C. | rickets |
| D. | kwashiorkor |
| Answer» B. beriberi | |
| 309. |
In a carbon (C) free solution of minerals, plants |
| A. | cannot grow |
| B. | can grow well |
| C. | will loose their green color |
| D. | will die |
| Answer» C. will loose their green color | |
| 310. |
Processed foods generally lack |
| A. | fiber |
| B. | minerals |
| C. | starch |
| D. | vitamins |
| Answer» E. | |
| 311. |
Adrenaline production is stimulated due to |
| A. | carbon monoxide |
| B. | tar |
| C. | nicotine |
| D. | cocaine |
| Answer» D. cocaine | |
| 312. |
Biology attempts to answer the questions like; |
| A. | How can the organisms be classified on the basis of similarities only? |
| B. | How can the organisms be classified on the basis of differences only? |
| C. | How can organisms be classified on the basis of trophic levels? |
| D. | How can the organisms be classified on the basis of similarities and differences? |
| Answer» E. | |
| 313. |
Nature of Chyme is |
| A. | acidic |
| B. | alkaline |
| C. | neutral |
| D. | depends upon the type of food eaten |
| Answer» B. alkaline | |
| 314. |
Bile pigments are not |
| A. | produced in liver |
| B. | formed as a result of hemoglobin breakdown |
| C. | stored in gall bladder temporarily |
| D. | used to dominate amino acids into urea |
| Answer» E. | |
| 315. |
To facilitate entry of CO₂ in leaf is done through stomata, as well as through the water film on the |
| A. | upper epidermis |
| B. | lower epidermis |
| C. | spongy mesophyll cells |
| D. | palisade mesophyll cells |
| Answer» D. palisade mesophyll cells | |
| 316. |
Function of a companion cell is to provide |
| A. | repair protoplasm of sieve tube |
| B. | repair cytoplasm of sieve tube |
| C. | provide a central vacuole support to sieve tube |
| D. | helps sieve tube cells remain alive |
| Answer» E. | |
| 317. |
Deficiency of calciferol causes |
| A. | rickets |
| B. | beriberi |
| C. | scurvy |
| D. | all of above |
| Answer» B. beriberi | |
| 318. |
Vitamin D can be created from a natural substance under the skin called as |
| A. | Estrogen |
| B. | Ergosterol |
| C. | pellagra |
| D. | pernicious |
| Answer» C. pellagra | |
| 319. |
Weight reduction program should be based on low intake of |
| A. | dietary fiber |
| B. | vitamins |
| C. | fats |
| D. | protiens |
| Answer» D. protiens | |
| 320. |
Despite keeping a check on weight, an increase in weight may be due to more |
| A. | sodium in diet |
| B. | potassium in diet |
| C. | chlorine in diet |
| D. | manganese in diet |
| Answer» B. potassium in diet | |
| 321. |
Weight reduction programs shall not increase |
| A. | protein intake |
| B. | water intake |
| C. | intake of citrus fruits |
| D. | intake of leafy vegetables |
| Answer» B. water intake | |
| 322. |
It is believed that vitamin deficiency can be avoided by consuming |
| A. | limes |
| B. | lentils |
| C. | proteins |
| D. | potatoes |
| Answer» B. lentils | |
| 323. |
For classification, Biology uses |
| A. | artificial system |
| B. | natural system |
| C. | neutral system |
| D. | a tracking system |
| Answer» C. neutral system | |
| 324. |
Bios and logos means |
| A. | Life, Knowledge |
| B. | Living things, Language |
| C. | Life, Language |
| D. | Living things, Knowledge |
| Answer» B. Living things, Language | |
| 325. |
Activities of living organisms can be recorded through |
| A. | observation, experimentation |
| B. | capturing, isolation |
| C. | experiment, locomotion |
| D. | only isolation |
| Answer» B. capturing, isolation | |
| 326. |
Catabolic activities include |
| A. | conversion of glucose to glycogen |
| B. | formation of new protoplasm |
| C. | cell repair |
| D. | formation of urea in the liver |
| Answer» E. | |
| 327. |
Consequences of water pollution include |
| A. | discharge of untreated sewage |
| B. | burning of fossil fuels |
| C. | loss of habitat |
| D. | climatic changes |
| Answer» B. burning of fossil fuels | |
| 328. |
Substance which inhibits blood clotting is |
| A. | histamine |
| B. | microbes |
| C. | heparin |
| D. | pancrealin |
| Answer» D. pancrealin | |
| 329. |
Word 'biology' is derived from language |
| A. | Latin |
| B. | Greek |
| C. | English |
| D. | Hebrew |
| Answer» C. English | |
| 330. |
Trachea divides into two |
| A. | cilia |
| B. | bronchus |
| C. | bronchi |
| D. | pleura |
| Answer» D. pleura | |
| 331. |
Lack of dietary fiber causes |
| A. | kwashiorkor |
| B. | Rickets |
| C. | dysentery |
| D. | constipation |
| Answer» E. | |
| 332. |
Heroine is several times more powerful than |
| A. | opium |
| B. | cannabis |
| C. | morphine |
| D. | barbiturates |
| Answer» D. barbiturates | |
| 333. |
In context to ecology ,hydrophytes may be |
| A. | partially submerged |
| B. | fully submerged |
| C. | free floating |
| D. | all of above |
| Answer» E. | |
| 334. |
In respiration , oxidation helps in |
| A. | photosynthesis |
| B. | conversion of chemical energy into potential energy |
| C. | conversion of radiant energy into chemical energy |
| D. | conversion of potential energy into chemical energy |
| Answer» C. conversion of radiant energy into chemical energy | |
| 335. |
Amino acid chain in a protein molecule is |
| A. | straight |
| B. | coiled |
| C. | curved |
| D. | concave |
| Answer» C. curved | |
| 336. |
Red blood cells are also called |
| A. | thrombocytes |
| B. | leukocytes |
| C. | erythrocytes |
| D. | lymphs |
| Answer» D. lymphs | |
| 337. |
In order to break starch (C₆H₁₀O₅)n to form glucose (C₆H₁₂O₆) units, starch needs to by |
| A. | hydrolyzed |
| B. | condensed |
| C. | oxidized |
| D. | polymerized |
| Answer» B. condensed | |
| 338. |
During milk fermentation, lactose is converted to lactic acid through |
| A. | lactobacillus |
| B. | streptococcus |
| C. | Lactococcus |
| D. | Streptobacillus |
| Answer» B. streptococcus | |
| 339. |
Lymph nodes are found in |
| A. | neck region |
| B. | axilla |
| C. | groin |
| D. | All of the Above |
| Answer» E. | |
| 340. |
Pepsin and rennin enzymes are found in the |
| A. | liver |
| B. | intestine |
| C. | gall bladder |
| D. | stomach |
| Answer» E. | |
| 341. |
Chronic bronchitis and emphysema are more vulnerable to |
| A. | acid rains |
| B. | water pollutants |
| C. | smog |
| D. | nitrogen oxides |
| Answer» D. nitrogen oxides | |
| 342. |
Cork exchanges air through |
| A. | pleurons |
| B. | placenticles |
| C. | tentacles |
| D. | lenticels |
| Answer» E. | |
| 343. |
Disadvantage of fats is |
| A. | efficient source of energy |
| B. | effective insulative material |
| C. | reduction in the rate of heat loss |
| D. | solvent for vitamins |
| Answer» D. solvent for vitamins | |
| 344. |
Scientific methods begin with |
| A. | hypothesis and prediction |
| B. | hypothesis and curiosity |
| C. | observation and curiosity |
| D. | classification and kingdoms |
| Answer» D. classification and kingdoms | |
| 345. |
Of the 10,000 tons of annual global opium production, used in medicine is |
| A. | 400 tons |
| B. | 300 tons |
| C. | 600 tons |
| D. | 700 tons |
| Answer» B. 300 tons | |
| 346. |
Rate of transpiration is increased with increase in |
| A. | light |
| B. | temperature |
| C. | wind |
| D. | All of the Above |
| Answer» E. | |
| 347. |
Economic output and investment of different types of biotechnologies is known as |
| A. | bioremediation |
| B. | biodegradation |
| C. | bio economic |
| D. | bioleaching |
| Answer» D. bioleaching | |
| 348. |
Zero emission cars will produce |
| A. | carbon monoxide as waste |
| B. | water as waste |
| C. | carbon dioxide as waste |
| D. | hydrogen and oxygen as waste |
| Answer» C. carbon dioxide as waste | |
| 349. |
Hydrochloric acid has a pH of about |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 13 |
| Answer» B. 3 | |
| 350. |
The term "fats" can be used to refer to |
| A. | solid animal fats |
| B. | liquid animal fats |
| C. | plant fats |
| D. | all of above |
| Answer» E. | |