MCQOPTIONS
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MCQOPTIONS
This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
______ found in blood, is responsible for oxygen transportation. |
| A. | WBC |
| B. | RBC |
| C. | Plasma |
| D. | Platelets |
| Answer» C. Plasma | |
| 352. |
Anaemia is related to ______. |
| A. | Iodine deficiency |
| B. | Calcium deficiency |
| C. | Iron deficiency |
| D. | Food poisoning |
| Answer» D. Food poisoning | |
| 353. |
Excess of phosphates and nitrates in water bodies causes |
| A. | Nutritional deficiency |
| B. | Algal bloom |
| C. | Decrease of water pollution |
| D. | Increase in the growth rate of decomposers |
| Answer» C. Decrease of water pollution | |
| 354. |
In humans, exhaled air contains oxygen about ________. |
| A. | 40% |
| B. | 44% |
| C. | 16% |
| D. | 64% |
| Answer» D. 64% | |
| 355. |
Detoxification of harmful substances takes place in which of the following organ in human beings? |
| A. | Spleen |
| B. | Liver |
| C. | Colon |
| D. | Kidney |
| Answer» C. Colon | |
| 356. |
From the following which is an example of a single-celled organism? |
| A. | Protozoa |
| B. | Anthropods |
| C. | Echinoderms |
| D. | Annelids |
| Answer» B. Anthropods | |
| 357. |
Bending of shoot of a plant towards light can be referred to as |
| A. | photonasty |
| B. | positive phototropism |
| C. | negative phototropism |
| D. | photoperiodism |
| Answer» C. negative phototropism | |
| 358. |
Excessive amount of calcium oxalate in the body causes ______.A. BronchitisB. DiabetesC. StonesD. Meningitis |
| A. | B |
| B. | A |
| C. | C |
| D. | D |
| Answer» D. D | |
| 359. |
Melanin is the natural pigment that gives colour to human skin, hair and the iris. It provides protection against the |
| A. | Ultraviolet radiation |
| B. | Infrared radiation |
| C. | X-ray radiation |
| D. | Short wave radio radiation |
| Answer» B. Infrared radiation | |
| 360. |
On which part of the human eye is the image formed? |
| A. | Retina |
| B. | Cornea |
| C. | Optic nerve |
| D. | Iris |
| Answer» B. Cornea | |
| 361. |
Father of taxonomy is |
| A. | De Candolle |
| B. | Hooker |
| C. | Linnaeus |
| D. | Aristotle |
| Answer» D. Aristotle | |
| 362. |
Deficiency of which of the following vitamins causes Night Blindness? |
| A. | Vitamin C |
| B. | Vitamin D |
| C. | Vitamin B |
| D. | Vitamin A |
| Answer» E. | |
| 363. |
Identify the correct statements related to Z-scheme of light reactionI) Transfer of electrons starts from PSIIII) The electrons passed down the chain to PSII againIII) The electrons reaches finally downhill to \(NADP^+\)IV) The electron carriers are not placed in a sequence on a redox potential scale |
| A. | I, II |
| B. | III, IV |
| C. | I, III |
| D. | II, III |
| Answer» D. II, III | |
| 364. |
Prostate gland is present below ________. |
| A. | The kidneys |
| B. | The scrotum |
| C. | The urinary bladder |
| D. | The penis |
| Answer» D. The penis | |
| 365. |
In vertebrates, smooth endoplasmic reticulum plays a crucial role in detoxifying _____ from many drugs. |
| A. | small intestine |
| B. | liver |
| C. | brain |
| D. | lungs |
| Answer» C. brain | |
| 366. |
Muscle fatigue is due to accumulation of |
| A. | Carbon dioxide |
| B. | Creatinine |
| C. | Lactic acid |
| D. | Ethyl alcohol |
| Answer» D. Ethyl alcohol | |
| 367. |
Iodine is a vital component of hormones produced by: |
| A. | Thyroid gland |
| B. | Adrenal gland |
| C. | Pituitary gland |
| D. | Pancreas |
| Answer» B. Adrenal gland | |
| 368. |
Poisonous substance found in nematocysts of hydra is |
| A. | Hyponotoxin |
| B. | Haematin |
| C. | Heparin |
| D. | Thrombin |
| Answer» B. Haematin | |
| 369. |
Eichornia can be classified under which of the following type of plants? |
| A. | Xerophytes |
| B. | Epiphytes |
| C. | Halophytes |
| D. | Hydrophytes |
| Answer» E. | |
| 370. |
Equus burchellii is the scientific name of _________. |
| A. | Horse |
| B. | Zebra |
| C. | Buffalo |
| D. | Ass |
| Answer» C. Buffalo | |
| 371. |
AIDS is caused by a virus whose genetic material is |
| A. | single stranded circular DNA |
| B. | double stranded DNA |
| C. | single stranded RNA |
| D. | Double stranded RNA |
| Answer» D. Double stranded RNA | |
| 372. |
Gasoline is the name given to the same substance as? |
| A. | Diesel oil |
| B. | Natural gas |
| C. | Petrol |
| D. | Crude oil |
| Answer» D. Crude oil | |
| 373. |
________ is a scientific discipline concerned with the study of plant pollen, spores, and certain microscopic planktonic organisms, in both, living and fossil form. |
| A. | Dendrology |
| B. | Ethnobotany |
| C. | Palynology |
| D. | Paleobotany |
| Answer» D. Paleobotany | |
| 374. |
Hormone secreting structure produced after ovulation is |
| A. | Corpus albicans |
| B. | Corpus spongiosum |
| C. | Corpus callosum |
| D. | Corpus luteum |
| Answer» E. | |
| 375. |
Examine the following pairs:A. Ramdeo Mishra1. Father of Ecology in IndiaB. Robert Brown2. Father of Micro BiologyC. Anton Van Leeuwenhoek3. Discoverer of NucleusD. Newton4. Universal Law of GravitationChoose the INCORRECT pairs: |
| A. | A, B and D only |
| B. | B, C and D only |
| C. | B and C only |
| D. | A and D only |
| Answer» D. A and D only | |
| 376. |
Members of which group are used in making beer? |
| A. | Rhizopus |
| B. | Albugo |
| C. | Neurospora |
| D. | Yeast |
| Answer» E. | |
| 377. |
Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells are |
| A. | Monocytes |
| B. | Platelets |
| C. | Eosinophils |
| D. | Neutrophils |
| Answer» C. Eosinophils | |
| 378. |
_______ is a multicellular organism. |
| A. | Agaricus |
| B. | Cyanobacteria |
| C. | Mycoplasma |
| D. | Paramecium |
| Answer» B. Cyanobacteria | |
| 379. |
In humans, ribs are attached to ________. |
| A. | clavicle |
| B. | ileum |
| C. | sternum |
| D. | scapula |
| Answer» D. scapula | |
| 380. |
In which of the following phylum, would you place an animal with a bilaterally symmetrical, triploblastic body without a true internal cavity (coelom)? |
| A. | Porifera |
| B. | Platyhelminthes |
| C. | Cnidaria |
| D. | Annelida |
| Answer» C. Cnidaria | |
| 381. |
Emasculation is achieved by ________________. |
| A. | Removal of Anther |
| B. | Removal of Style |
| C. | Removal of Petals |
| D. | Removal of Sepals |
| Answer» B. Removal of Style | |
| 382. |
Amoeba, Paramecium and Bacteria undergo: |
| A. | Sexual reproduction |
| B. | budding |
| C. | binary fission |
| D. | multiple fission |
| Answer» D. multiple fission | |
| 383. |
Arthritis is the disease of ________. |
| A. | Skin |
| B. | Kidney |
| C. | Liver |
| D. | Joints |
| Answer» E. | |
| 384. |
Glomerulus and Bowman's Capsule are part of which body organ? |
| A. | Kidney |
| B. | Lungs |
| C. | Heart |
| D. | Liver |
| Answer» B. Lungs | |
| 385. |
In the heart of man the bicuspid valve is situated between ______. |
| A. | Right ventricle and pulmonary aorta |
| B. | Left auricle and left ventricle |
| C. | Right auricle and right ventricle |
| D. | Postcaval and auricle |
| Answer» C. Right auricle and right ventricle | |
| 386. |
Food web is a system of interlocking and interdependent ______. |
| A. | Food cycles |
| B. | Food chains |
| C. | Food system |
| D. | None of these |
| Answer» C. Food system | |
| 387. |
'Flora and fauna' refer to ______. |
| A. | birds and animals |
| B. | mountains and rivers |
| C. | plants and animals |
| D. | humans and animals |
| Answer» D. humans and animals | |
| 388. |
Accumulation of which chemical leads to kidney stones? |
| A. | Phthalates |
| B. | Albuminuria |
| C. | Calcium Oxalate |
| D. | Bispehnol A |
| Answer» D. Bispehnol A | |
| 389. |
_______ is the common name for Ascaris. |
| A. | Tape worm |
| B. | Earthworm |
| C. | Pinworms |
| D. | Round worm |
| Answer» E. | |
| 390. |
If the chromosome number is 46 in a human being, how many chromosomes are present in somatic cells of the human being? |
| A. | 24 |
| B. | 46 |
| C. | 23 |
| D. | 48 |
| Answer» C. 23 | |
| 391. |
In lichen Soredium, Cephalodum and isidium are mode of: |
| A. | Vegetative reproduction |
| B. | Asexual reproduction |
| C. | Sexual reproduction |
| D. | None of these |
| Answer» C. Sexual reproduction | |
| 392. |
More diversity is allowed for breeding by _____. |
| A. | Vegetative propagation |
| B. | Tissue culture |
| C. | Asexual reproduction |
| D. | Sexual reproduction |
| Answer» E. | |
| 393. |
Parkinson’s disease affects which of the following organ in human beings? |
| A. | Lungs |
| B. | Brain |
| C. | Heart |
| D. | Kidneys |
| Answer» C. Heart | |
| 394. |
______ tissue changes the diameter of a blood vessel. |
| A. | Heart |
| B. | Muscle |
| C. | Epithelial |
| D. | Bone |
| Answer» C. Epithelial | |
| 395. |
ln human beings, the chromosomes that determine birth of a normal female child are ___________. |
| A. | one X chromosome from mother and one X chromosome from father |
| B. | one X chromosome from mother and one Y chromosome from father |
| C. | two X chromosomes from mother and one X chromosome from father |
| D. | one X chromosome and one Y chromosome from father and one X chromosome from mother |
| Answer» B. one X chromosome from mother and one Y chromosome from father | |
| 396. |
All green plants and certain blue-green algae which can produce food by photosynthesis are called the _____. |
| A. | Consumers |
| B. | Producers |
| C. | Decomposers |
| D. | Bacteria |
| Answer» C. Decomposers | |
| 397. |
Angiography is used to visualize lumen of: |
| A. | Arteries |
| B. | Veins |
| C. | Heart chambers |
| D. | All of the above |
| Answer» E. | |
| 398. |
Flame cells are |
| A. | Reproductive |
| B. | Excretory |
| C. | Sensory |
| D. | Inflammatory |
| Answer» C. Sensory | |
| 399. |
Computed _______ scan is a medical imaging technique that uses a computer-processed combination of multiple X-ray measurements taken from different angles to produce tomographic images of the body, allowing doctors to see inside the body without internal procedures. |
| A. | Tomography |
| B. | Topography |
| C. | Taping |
| D. | Tracking |
| Answer» B. Topography | |
| 400. |
In the grass family cotyledons are called |
| A. | Scutellum |
| B. | Epicotyl |
| C. | Hypocotyl |
| D. | Tigellum |
| Answer» B. Epicotyl | |