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.
| 251. |
Housefly maggots move |
| A. | towards light |
| B. | away from light |
| C. | into soil |
| D. | perpendicular to ground |
| Answer» C. into soil | |
| 252. |
Circulatory system in phylum Arthropoda and phylum Mollusca is |
| A. | open circulatory system |
| B. | close circulatory system |
| C. | partially open system |
| D. | partially closed system |
| Answer» B. close circulatory system | |
| 253. |
Osmoregulators refers to regulating |
| A. | salt concentration in blood only |
| B. | water concentration in blood only |
| C. | mineral concentration in blood |
| D. | salt and water concentration in blood |
| Answer» E. | |
| 254. |
Sea water is alkaline with a pH of |
| A. | less than 8 |
| B. | 8 |
| C. | 9 |
| D. | 10 |
| Answer» C. 9 | |
| 255. |
Pruteen is made by mixing bacteria in |
| A. | ethanol |
| B. | methanol |
| C. | Vaseline |
| D. | petroleum |
| Answer» C. Vaseline | |
| 256. |
Rate of heat lost depends upon the amount of |
| A. | fatty tissues in a body |
| B. | muscular tissue in the body |
| C. | sweat glands under the skin |
| D. | heavy work done |
| Answer» B. muscular tissue in the body | |
| 257. |
Type of energy trapped in dead bodies is in form of |
| A. | physical energy |
| B. | radiant energy |
| C. | chemical energy |
| D. | biochemical energy |
| Answer» D. biochemical energy | |
| 258. |
Veins collects blood from body and send it to |
| A. | liver |
| B. | lungs |
| C. | heart |
| D. | arteries |
| Answer» D. arteries | |
| 259. |
Flow of water is faster when there is a steeper |
| A. | potential gradient |
| B. | water potential |
| C. | kinetic energy |
| D. | chemical energy |
| Answer» B. water potential | |
| 260. |
Pathologists are people who learn about |
| A. | Animal Husbandry |
| B. | Classification |
| C. | Population Growth |
| D. | Plant diseases |
| Answer» E. | |
| 261. |
At the same time, smoking can not provide stimulation and |
| A. | reduce aging |
| B. | reduce tension |
| C. | induce sensation |
| D. | induce sleep |
| Answer» C. induce sensation | |
| 262. |
Labor of producing new life is shared between two parents in |
| A. | asexual reproduction |
| B. | higher animals |
| C. | lower animals |
| D. | water organisms |
| Answer» C. lower animals | |
| 263. |
Active transport refers to |
| A. | fulfilling plant deficiencies |
| B. | supporting active translocation |
| C. | flow of substances from lesser to more concentrated zones |
| D. | flow of substances from lesser concentrated to more concentrated zones |
| Answer» D. flow of substances from lesser concentrated to more concentrated zones | |
| 264. |
Animals store carbohydrates mainly in the form of |
| A. | cellulose |
| B. | starch |
| C. | galactose |
| D. | glycogen |
| Answer» E. | |
| 265. |
Starfish and corals can be found in |
| A. | fresh water |
| B. | in oceans and seas |
| C. | ponds |
| D. | lakes |
| Answer» C. ponds | |
| 266. |
Beer may be produced by fermentation of |
| A. | barley |
| B. | grape |
| C. | rice |
| D. | oranges |
| Answer» B. grape | |
| 267. |
Which one is a characteristic of fossil fuels |
| A. | cannot be recycled |
| B. | can be recycled |
| C. | can be reused |
| D. | can be reprocessed |
| Answer» B. can be recycled | |
| 268. |
Oxygenated blood is never received by heart of |
| A. | frog |
| B. | fish |
| C. | reptiles |
| D. | arthropods |
| Answer» C. reptiles | |
| 269. |
Caffeine is found in |
| A. | tea |
| B. | coffee |
| C. | coke |
| D. | all of above |
| Answer» E. | |
| 270. |
Fish die as a result of water pollution due to |
| A. | less BOD |
| B. | more tolerance range for oxygen |
| C. | narrow tolerance range for oxygen |
| D. | zero tolerance range for oxygen |
| Answer» D. zero tolerance range for oxygen | |
| 271. |
Most of the animal fats are |
| A. | saturated fats |
| B. | unsaturated fats |
| C. | monounsaturated fats |
| D. | monosaturated fats |
| Answer» B. unsaturated fats | |
| 272. |
Which one is a true fact in relevance to cold weather |
| A. | less urine is excreted |
| B. | excess salts are secreted in urine |
| C. | sweat secretions are reduced |
| D. | excess sugars are secreted in urine |
| Answer» D. excess sugars are secreted in urine | |
| 273. |
Butter, cheese and nuts are a source of |
| A. | proteins |
| B. | fiber |
| C. | vitamins |
| D. | fats |
| Answer» E. | |
| 274. |
By nature, Vitamins are |
| A. | fiber |
| B. | minerals |
| C. | organic compounds |
| D. | inorganic compounds |
| Answer» D. inorganic compounds | |
| 275. |
Defense against diseases is facilitated by help of |
| A. | antigens |
| B. | antibodies |
| C. | immunoglobulins |
| D. | thrombocytes |
| Answer» D. thrombocytes | |
| 276. |
Stored energy found in most foods is known as |
| A. | potential kinetic energy |
| B. | potential physical energy |
| C. | potential chemical energy |
| D. | adenosine triphosphate |
| Answer» D. adenosine triphosphate | |
| 277. |
Cadmium is an example of |
| A. | organic waste |
| B. | inorganic waste |
| C. | nitrogenous waste |
| D. | carbonic waste |
| Answer» C. nitrogenous waste | |
| 278. |
Night blindness is caused due to the deficiency of |
| A. | vitamin A |
| B. | vitamin B complex |
| C. | vitamin D |
| D. | vitamin K |
| Answer» B. vitamin B complex | |
| 279. |
Which is not true for vitamins |
| A. | do not provide energy |
| B. | are inorganic in nature |
| C. | can not be hydrolyzed |
| D. | need special enzymes to be digested |
| Answer» B. are inorganic in nature | |
| 280. |
Movement of water molecules along cell walls of xylem vessels is due to a force called |
| A. | root pressure |
| B. | guttation |
| C. | imbition |
| D. | bleeding |
| Answer» D. bleeding | |
| 281. |
Oxidation occurs in which part of the body? |
| A. | stomach |
| B. | liver |
| C. | small intestine |
| D. | every single cell |
| Answer» E. | |
| 282. |
Lactose can also be called as |
| A. | milk sugar |
| B. | malt sugar |
| C. | cane sugar |
| D. | grape sugar |
| Answer» B. malt sugar | |
| 283. |
Non-renewable sources do not include |
| A. | fossil fuels |
| B. | minerals |
| C. | air |
| D. | water |
| Answer» D. water | |
| 284. |
In homeostasis ultrafiltration retains |
| A. | platelets |
| B. | fats |
| C. | proteins |
| D. | all of above |
| Answer» E. | |
| 285. |
Gaseous pollutants include |
| A. | biological decay |
| B. | forest fires |
| C. | volcanic eruptions |
| D. | all of above |
| Answer» E. | |
| 286. |
Embolus dislodge from its site of production and moves in the |
| A. | nervous system |
| B. | gustatory system |
| C. | circulatory system |
| D. | digestive system |
| Answer» D. digestive system | |
| 287. |
Large intake of water |
| A. | decreases osmotic pressure in plasma |
| B. | stimulates active production of ADH |
| C. | produces lesser urine |
| D. | causes excess selective reabsorption |
| Answer» B. stimulates active production of ADH | |
| 288. |
Sulfur dioxide (SO₂) may be reduced in air, if |
| A. | catalytic converters are used in cars |
| B. | car pools are used |
| C. | filters or scrubbers are used in chimneys |
| D. | ozone friendly products are introduced |
| Answer» D. ozone friendly products are introduced | |
| 289. |
No smog occurs if |
| A. | cool air is allowed to escape |
| B. | if pollutants like smoke and sulphur dioxide are prevented from escape |
| C. | if cool air and pollutants are prevented from escape |
| D. | if pollutants like smoke and sulphur dioxide are escape |
| Answer» D. if pollutants like smoke and sulphur dioxide are escape | |
| 290. |
Risks of flood increases if |
| A. | more smog occurs |
| B. | more tress are planted |
| C. | soil erosion is prevented |
| D. | greenhouse effect increases |
| Answer» E. | |
| 291. |
In humans, the sensitivity of respiratory diseases, eyes, and air passages is experienced due to |
| A. | carbon dioxide |
| B. | lead |
| C. | carbon monoxide |
| D. | sulphur dioxide |
| Answer» E. | |
| 292. |
Stimulus for breathing is |
| A. | lack of oxygen in blood |
| B. | excess of carbon dioxide in blood |
| C. | contraction of alveoli |
| D. | diaphragm movements |
| Answer» C. contraction of alveoli | |
| 293. |
In expiration in process of respiration |
| A. | the diaphragm relaxes and arches upwards |
| B. | air enters the lungs |
| C. | ribs move upwards |
| D. | sternum moves up and away from backbone |
| Answer» B. air enters the lungs | |
| 294. |
Large gene pool enables |
| A. | conservation of natural resources |
| B. | depletion of natural resources |
| C. | conservation of artificial resources |
| D. | depletion of artificial resources |
| Answer» B. depletion of natural resources | |
| 295. |
Commonly found inside liver of fish is |
| A. | proteins |
| B. | fiber |
| C. | vitamins |
| D. | fats |
| Answer» E. | |
| 296. |
In order to reduce water loss, plants may |
| A. | shed leaves |
| B. | depend on peripheral layer of root |
| C. | will show cell division in shoot apex |
| D. | get rid of stomata |
| Answer» B. depend on peripheral layer of root | |
| 297. |
All is true for local anesthesia, but, |
| A. | that it causes local numbness |
| B. | it causes a loss of sensation in the area being injected |
| C. | contains Cocaine |
| D. | cause gastric ulcers |
| Answer» E. | |
| 298. |
In transpiration, water leaves cell of plants in form of |
| A. | ice |
| B. | water droplets |
| C. | sugars |
| D. | dew |
| Answer» C. sugars | |
| 299. |
In a food chain, organisms |
| A. | feed on preceding one only |
| B. | provides food for succeeding organisms only |
| C. | provide more energy for the next trophic level |
| D. | feed on preceding one and provides food for succeeding organisms |
| Answer» E. | |
| 300. |
Anabolic activities include |
| A. | tissue respiration |
| B. | deamination of proteins |
| C. | denaturation of enzymes |
| D. | photosynthesis in green plants |
| Answer» E. | |