MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Biodiversity Act of India was passed by the parliament in the year [CBSE PMT 2005] |
| A. | 1992 |
| B. | 1996 |
| C. | 2000 |
| D. | 2002 |
| Answer» E. | |
| 2. |
Which one statement regarding isoenzyme is correct |
| A. | Enzymes physically identical and performing similar functions are called isoenzymes |
| B. | Enzymes chemically identical and performing similar functions are called isoenzymes |
| C. | Enzymes which are physically and chemically identical and performing similar functions are called isoenzymes |
| D. | All statements are correct |
| Answer» D. All statements are correct | |
| 3. |
Formation of a sporophyte from gametophyte and vice versa is termed as [RPMT 1997] |
| A. | Sexual reproduction |
| B. | Asexual reproduction |
| C. | Alternation of generation |
| D. | Transformation |
| Answer» D. Transformation | |
| 4. |
Which pesticides are lipophilic |
| A. | Organochlorines |
| B. | Organophosphates |
| C. | Triazines |
| D. | Pyrethroids |
| Answer» B. Organophosphates | |
| 5. |
Which part of the world has high density of organisms [CBSE PMT 1999] |
| A. | Grasslands |
| B. | Savannahs |
| C. | Deciduous forests |
| D. | Tropical rain forests |
| Answer» E. | |
| 6. |
Which of the following cells of \[{{C}_{4}}\]plants are prominently loaded with starch |
| A. | Epidermal cells |
| B. | Mesophyll cells |
| C. | Bundle sheath cells |
| D. | All the above |
| Answer» D. All the above | |
| 7. |
Assertion : Palaemon undergoes autotomy. Reason : Autotomy helps them to reproduce. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 8. |
Assertion : Most of experiments regarding sex determination were done on Drosophila. Reason : It is a fruit fly. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 9. |
Which of the following is polymerized to form proteins [MHCET 2003] |
| A. | Protein |
| B. | Carbohydrates |
| C. | Amino acid |
| D. | Muramic acid |
| Answer» D. Muramic acid | |
| 10. |
Assertion : DNA molecules and RNA molecules are found in the nucleus of cell. Reason : On heating, enzymes do not lose their specific activity. [AIIMS 1994] |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» E. If the assertion is false but reason is true | |
| 11. |
Assertion : Pinus embryo has two cotyledons. Reason : Pinus shows polyembryony. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» F. | |
| 12. |
During anaerobic respiration in yeast [CPMT 1992] |
| A. | Water and\[C{{O}_{2}}\]are end products |
| B. | \[C{{O}_{2}},\,\,{{C}_{2}}{{H}_{5}}OH\]and energy are end products |
| C. | \[{{H}_{2}}S,\,\,{{C}_{6}}{{H}_{12}}{{O}_{6}}\]and energy are the end products |
| D. | \[{{H}_{2}}O,\,\,C{{O}_{2}}\]and energy are the only end products |
| Answer» C. \[{{H}_{2}}S,\,\,{{C}_{6}}{{H}_{12}}{{O}_{6}}\]and energy are the end products | |
| 13. |
Read the assertion and reason carefully: Assertion : Dorsiventral leaves are also called bifacial. Reason : They have distinct adaxial and abaxial surfaces. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 14. |
The chemical used in National Malaria Eradication Programme is [BHU 2004] |
| A. | 2, 4-D |
| B. | BHC |
| C. | DDT |
| D. | Pyrethroid |
| Answer» D. Pyrethroid | |
| 15. |
Which one of the following countries is the centre of origin of rice [MP PMT 1995] |
| A. | India |
| B. | USA |
| C. | Indo-Malayan region |
| D. | Russia |
| Answer» B. USA | |
| 16. |
Phaseolus acontifolius is a |
| A. | Mothbean |
| B. | Kidneybean |
| C. | Soybean |
| D. | None of the above |
| Answer» B. Kidneybean | |
| 17. |
Egg undergoes cleavage and forms [RPMT 1995] |
| A. | Morula |
| B. | Blastula |
| C. | Gastrula |
| D. | All the above |
| Answer» B. Blastula | |
| 18. |
2, 4-D is an effective [CBSE PMT 1996; BHU 1997; MH-CET 2000] |
| A. | Insecticide |
| B. | Herbicide |
| C. | Fungicide |
| D. | Rodenticide |
| Answer» C. Fungicide | |
| 19. |
A sacred lake is |
| A. | Dal Lake of Kashmir |
| B. | Khecheopalri Lake of Sikkin |
| C. | Suraj Khand Lake of Haryana |
| D. | Chilka Lake of Orissa |
| Answer» C. Suraj Khand Lake of Haryana | |
| 20. |
The egg found in monotremata is [MH CET 2003] |
| A. | Microlecithal |
| B. | Mesolecithal |
| C. | Macrolecithal |
| D. | None of these |
| Answer» D. None of these | |
| 21. |
Which is the cause of Anthrax disease [MP PMT 2002] |
| A. | Virus |
| B. | Bacteria |
| C. | Mycoplasma |
| D. | Algae |
| Answer» C. Mycoplasma | |
| 22. |
Which is most important cereal crop of temperate region [CPMT 1983] |
| A. | Paddy |
| B. | Wheat |
| C. | Maize |
| D. | Barley |
| Answer» C. Maize | |
| 23. |
Lobia is |
| A. | Vigna unguiculata |
| B. | Cajanus cajan |
| C. | Phaseolus mungo |
| D. | None of the above |
| Answer» B. Cajanus cajan | |
| 24. |
One way cycle is [Pb. PMT 1999] |
| A. | \[C{{O}_{2}}\]cycle |
| B. | \[{{H}_{2}}O\]cycle |
| C. | Free energy cycle |
| D. | \[{{O}_{2}}\]cycle |
| Answer» D. \[{{O}_{2}}\]cycle | |
| 25. |
Degradation of proteins play a part in |
| A. | Calvin cycle |
| B. | Water cycle |
| C. | Sulphur cycle |
| D. | Nitrogen cycle |
| Answer» E. | |
| 26. |
When yeast ferments glucose, the products obtained are [BVP 2002] |
| A. | Ethanol and water |
| B. | Water and \[C{{O}_{2}}\] |
| C. | Ethanol and \[C{{O}_{2}}\] |
| D. | Methanol and \[C{{O}_{2}}\] |
| Answer» D. Methanol and \[C{{O}_{2}}\] | |
| 27. |
The areolar tissue connects [BHU 1988] |
| A. | Two bones |
| B. | Muscle and the bone |
| C. | Muscle and the fat tissue |
| D. | Muscles and their compound |
| Answer» E. | |
| 28. |
Which of the following antibiotics is found to be most effective against mycoplasma |
| A. | Penicillin |
| B. | Streptomycin |
| C. | Tetracycline |
| D. | Nystatin |
| Answer» D. Nystatin | |
| 29. |
Assertion : All food chains will come to stand still if bacteria disappear from earth. Reason : Bacteria are only associated with the soil fertility and hardly any role for food chains. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 30. |
Assertion : Coelenterates show alternation of generation. Reason : In coelenterates, asexual generation is followed by sexual generation. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 31. |
Read the assertion and reason carefully: Assertion : Compound umbel is branched. Reason : In compound umbel, both involucre and involucels are present. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 32. |
Generally decline in hearing power begins after the age of |
| A. | 50 years |
| B. | 30 years |
| C. | 40 years |
| D. | 10 years |
| Answer» E. | |
| 33. |
Cellulose is a [Manipal 2005] |
| A. | Monosaccharide |
| B. | Disaccharide |
| C. | Homoglycan pentosan |
| D. | Homoglycan hexosan |
| Answer» E. | |
| 34. |
Cytokinesis in plants takes place by the formation of |
| A. | Sphaeroblasts |
| B. | Equatorial cell plate |
| C. | Idioblasts |
| D. | Cell budding |
| Answer» C. Idioblasts | |
| 35. |
The zoological name of common hare found in northern India is [MP PMT 2001; CPMT 2004] |
| A. | Oryctolagus cuniculus |
| B. | Lepus ruficaudatus |
| C. | Dasypus sexcinctus |
| D. | Alactaga indica |
| Answer» C. Dasypus sexcinctus | |
| 36. |
Which one of the following pairs is not correctly matched [CBSE PMT 2004] |
| A. | Spirulina - Single cell protein |
| B. | Rhizobiu - Biofertilizer |
| C. | Streptomyces - Antibiotic |
| D. | Serratia - Drug addiction |
| Answer» E. | |
| 37. |
Which of the following bacteria grow on isopropyl alcohol and convert it into acetone |
| A. | Fermentative bacteria |
| B. | Chemosynthetic bacteria |
| C. | Photosynthetic purple non-sulphur bacteria |
| D. | Nitrifying bacteria |
| Answer» D. Nitrifying bacteria | |
| 38. |
The edible part of groundnut is buried in the soil and morphologically it is a [MP PMT 1995] |
| A. | Root |
| B. | Stem |
| C. | Fruit |
| D. | Leaf |
| Answer» D. Leaf | |
| 39. |
Stomata are not found in [MP PMT 2001] |
| A. | Algae |
| B. | Mosses |
| C. | Ferns |
| D. | Gymnosperm |
| Answer» B. Mosses | |
| 40. |
Bio-insecticides includes |
| A. | Pathogens |
| B. | Parasites |
| C. | Predators |
| D. | All of these |
| Answer» E. | |
| 41. |
Assertion : During the hydrolysis of typical chemical bonds, about 3000 calories per mole are liberated. Reason : ATP also yields about 3000 calories per mole after the release of any one of the two terminal phosphates. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 42. |
If a honey bee is conveying an information, by round dance then the distance of source will be about [CPMT 1982; MP PMT 2000] |
| A. | 1000 meters |
| B. | 50 meters |
| C. | 2000 meters |
| D. | 150 meters |
| Answer» C. 2000 meters | |
| 43. |
Jawar belong to family [MHCET 2004] |
| A. | Glumaceae |
| B. | Gramineae /Poaceae |
| C. | Asteraceae/Compositae |
| D. | Malvaceae |
| Answer» C. Asteraceae/Compositae | |
| 44. |
Pattern of organisation of cilia and flagella is [Kashmir MEE 1995] |
| A. | 9 + 0 |
| B. | 9 + 1 |
| C. | 9 + 2 |
| D. | 9 + 3 |
| Answer» D. 9 + 3 | |
| 45. |
The prokaryotic genetic system contains [NCERT 1976] |
| A. | DNA and histones |
| B. | Either DNA or histones |
| C. | DNA but no histones |
| D. | Neither DNA nor histones |
| Answer» D. Neither DNA nor histones | |
| 46. |
Periblastula is found in [CBSE PMT 1988] |
| A. | Man |
| B. | Insects |
| C. | Sycon |
| D. | Reptiles |
| Answer» C. Sycon | |
| 47. |
Which of the following cycle shows oxaloacetic acid as first stable product |
| A. | Calvin cycle |
| B. | Hatch and Slack cycle |
| C. | \[{{C}_{2}}\]cycle |
| D. | None of the above |
| Answer» C. \[{{C}_{2}}\]cycle | |
| 48. |
Assertion : Male cone of Pinus is equivalent to stamens of angiosperms. Reason : Male cone bears pollen grains. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» F. | |
| 49. |
The micro-organism grown on molasses and sold as a food flavouring substance is [MP PMT 1999] |
| A. | Sacchromycetes |
| B. | Rhizopus |
| C. | Acetobacter |
| D. | Lactobacillus |
| Answer» B. Rhizopus | |
| 50. |
Deforestation brings about [DPMT 1984, 86] |
| A. | Increased sunlight |
| B. | Increased grazing area |
| C. | Weed control |
| D. | Soil erosion |
| Answer» E. | |