MCQOPTIONS
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MCQOPTIONS
This section includes 1212 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements is incorrect about skeletal muscle fibers? |
| A. | They are multinucleated |
| B. | They are 10 – 100 ?m in diameter & surrounded by sarcolemma |
| C. | They contain O2 storing molecules called hemoglobin |
| D. | Their cytoplasm contains high concentration of carbohydrates |
| Answer» D. Their cytoplasm contains high concentration of carbohydrates | |
| 2. |
Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction. |
| A. | Binding sites of actin get attached to the myosin head. |
| B. | Troponin uncovers the actin binding sites. |
| C. | Tropomyosin gets removed from the binding sites of actin filaments. |
| D. | Ca2+ goes back inside sarcoplasmic reticulum. |
| Answer» D. Ca2+ goes back inside sarcoplasmic reticulum. | |
| 3. |
Which of the following structure in plant’s body is called excretophores? |
| A. | Stem |
| B. | Leaves |
| C. | Flowers |
| D. | Roots |
| Answer» C. Flowers | |
| 4. |
Which of the following structure is not present in all the bacteria_____________? |
| A. | Cell membrane |
| B. | Chromatin bodies |
| C. | Ribosomes |
| D. | Capsule |
| Answer» E. | |
| 5. |
Which of the following structure primarily helps in attachment of bacteria on various surfaces____________? |
| A. | Flagella |
| B. | Pili |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 6. |
Which of the following structure provides greater pathogenicity to the bacteria__________? |
| A. | Capsule |
| B. | Slime |
| C. | Cell Wall |
| D. | Cell membrane |
| Answer» C. Cell Wall | |
| 7. |
Which of the following substance is most favorable to form structural component of biological membranes___________? |
| A. | Hydrophilic Carbohydrates |
| B. | Hydrophobic fats |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 8. |
Which of the following ” Tikka disease” is related with the crop? |
| A. | Musturd |
| B. | Paddy |
| C. | Ground nut |
| D. | None of these |
| Answer» D. None of these | |
| 9. |
Which of the following tracheophytes are also called arthrophytes______________? |
| A. | Psilopsids |
| B. | Lycopsids |
| C. | Sphenopsids |
| D. | Prteropsids |
| Answer» D. Prteropsids | |
| 10. |
Which of the following tracheophytes are leafless? |
| A. | Psilopsida |
| B. | Lycopsida |
| C. | Sphenopsida |
| D. | Prteropsida |
| Answer» B. Lycopsida | |
| 11. |
Which of the following transmits nerve impulse from receptors to central nervous system? |
| A. | Sensory neuron |
| B. | Motor neuron |
| C. | Associative neuron |
| D. | none of these |
| Answer» B. Motor neuron | |
| 12. |
Which of the following treatment will be administered first in a newly diagnosed renal failure patient? |
| A. | Renal transplant |
| B. | Peritoneal Dialysis |
| C. | Lithotripsy |
| D. | Hemodialysis |
| Answer» E. | |
| 13. |
Which of the following vertebrates have a fish-like body? |
| A. | Reptiles |
| B. | Aves |
| C. | Amphibians |
| D. | Mammals |
| Answer» D. Mammals | |
| 14. |
Which of the following virus has special affiliations with the tumor production: |
| A. | Hepatitis virus |
| B. | Retrovirus |
| C. | Polio virus |
| D. | Pox virus |
| Answer» C. Polio virus | |
| 15. |
Which of the following vitamins is useful in ostcoimalacia? |
| A. | Vitamin D |
| B. | Vitamin E |
| C. | Vitamin C |
| D. | Vitamin A |
| Answer» B. Vitamin E | |
| 16. |
Which of the followings are effectors______________? |
| A. | Muscles |
| B. | Glands |
| C. | Sensory organs |
| D. | Both ‘a’ & ‘b’ |
| Answer» E. | |
| 17. |
Which of the followings is missing from the nervous system of planaria_____________? |
| A. | Ganglia |
| B. | Longitudinal nerves |
| C. | Lateral nerves |
| D. | none of these |
| Answer» E. | |
| 18. |
Which of the follwing is a childhood disease resulting from nutritive Ca2+ deficiency? |
| A. | Hypocalcaemia Tatanic spasms |
| B. | Osteomalacis |
| C. | Rickets |
| D. | Tetany |
| Answer» D. Tetany | |
| 19. |
Which of the light is mainly absorbed by the plants? |
| A. | Orange |
| B. | Red |
| C. | Green |
| D. | Both A and B |
| Answer» E. | |
| 20. |
Which of the protozoa has a striking resemblance to collar cells in sponges_____________? |
| A. | Zooflagellates |
| B. | Choanflagellates |
| C. | Trypanosomoa |
| D. | Trichonymphas |
| Answer» C. Trypanosomoa | |
| 21. |
Which of the statement about viruses is incorrect___________________? |
| A. | We can not grow them in laboratories on artificial medias |
| B. | They are obligate intracellular parasite. |
| C. | They can synthesize their nucleic acid |
| D. | They are resistant to most of antibiotic treatment |
| Answer» D. They are resistant to most of antibiotic treatment | |
| 22. |
Which of the statement about cell membrane is not true? |
| A. | It contains protein molecules embedded in lipid bilayer |
| B. | It is a differentially permeable membrane |
| C. | It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles. |
| D. | It may get infolded to engulf solid or liquid material. |
| Answer» D. It may get infolded to engulf solid or liquid material. | |
| 23. |
Which of the statement is not true for compounds like glycoprotein and glycolipids____________? |
| A. | They are conjugated molecules of carbohydrates |
| B. | Both have role in the extra cellular matrix of animals and bacterial cell wall |
| C. | They are components of biological membranes. |
| D. | Both are produced and secreted by endoplasmic reticulum |
| Answer» E. | |
| 24. |
Which of the vascular channels are related to Juxtramedullary nephrous only? |
| A. | Afferent and efferent arterioles |
| B. | Peritubualr capillaries |
| C. | Vasa nervosa |
| D. | Vasa recta |
| Answer» E. | |
| 25. |
Which one are most complex sugar_____________? |
| A. | Monosaccharides |
| B. | Oligosaccharides |
| C. | Polysaccharides |
| D. | None of these |
| Answer» D. None of these | |
| 26. |
Which one forms the raw material for coenzymes_______________________? |
| A. | Vitamins |
| B. | Carbohydrates |
| C. | Proteins |
| D. | Metals |
| Answer» B. Carbohydrates | |
| 27. |
Which one gives blue colour with iodine_______________? |
| A. | Starch |
| B. | Glycogen |
| C. | Cellulose |
| D. | Polysaccharide |
| Answer» B. Glycogen | |
| 28. |
Which one is a micromolecule__________? |
| A. | Polysaccharide |
| B. | Protein |
| C. | Hemoglobin |
| D. | ATP |
| Answer» E. | |
| 29. |
Which one is abundant in animals___________? |
| A. | Starch |
| B. | Glycogen |
| C. | Cellulose |
| D. | None of these |
| Answer» C. Cellulose | |
| 30. |
Which one is an organic compound_____________? |
| A. | CO2 |
| B. | Water |
| C. | Lipids |
| D. | HCI |
| Answer» D. HCI | |
| 31. |
Which one is not correct for a productive theory________? |
| A. | It is predictive |
| B. | It has explanatory power |
| C. | It discourages suggestion of different hypotheses |
| D. | None of these |
| Answer» D. None of these | |
| 32. |
Which one is not correct for a productive theory? |
| A. | It is predictive |
| B. | It has explanatory power |
| C. | It discourages suggestion of different hypotheses |
| D. | None of these |
| Answer» D. None of these | |
| 33. |
Which one is not found in fatty acids in acylglycerols____________? |
| A. | C-6 |
| B. | C-25 |
| C. | C-26 |
| D. | C-30 |
| Answer» C. C-26 | |
| 34. |
Which one is soluble in hot water_____________? |
| A. | Starch |
| B. | Glycogen |
| C. | Amylose |
| D. | Amylopectin |
| Answer» D. Amylopectin | |
| 35. |
Which one is the basic element of organic compounds _________________? |
| A. | Oxygen |
| B. | Hydrogen |
| C. | Sulphur |
| D. | Carbon |
| Answer» E. | |
| 36. |
Which one of the following forms the blk of exoskeleton of an arthropod? |
| A. | Epicuticle |
| B. | Procuticle |
| C. | Ectocuticle |
| D. | None of these |
| Answer» C. Ectocuticle | |
| 37. |
Which one of the following is an example of a non-elastic connective tissue? |
| A. | Ligaments |
| B. | Tendon |
| C. | Muscles |
| D. | None of these |
| Answer» C. Muscles | |
| 38. |
Which one of the following is avascular structure? |
| A. | A compact bone. |
| B. | A spongy bone. |
| C. | Cartilage |
| D. | All of these |
| Answer» D. All of these | |
| 39. |
Which one of the following is correct sequence of stages of prophase 1 of meiosis |
| A. | Diakinesis diplotene pachytene leptotene zygotene |
| B. | Zygotene leptotene pachytene diplotene diakinesis |
| C. | Leptotene zygotene pachytene diplotene diakinesis |
| D. | Pachytene leptotene diplotene zygotene diakinesis |
| Answer» D. Pachytene leptotene diplotene zygotene diakinesis | |
| 40. |
Which one of the following is different from all the rest regarding the number of cells inits body_______________? |
| A. | Rusts |
| B. | Mushrooms |
| C. | Molds |
| D. | Yeasts |
| Answer» E. | |
| 41. |
Which one of the following is most likely to occur in an animal during winter? |
| A. | Activation of sweat glands |
| B. | Dilation of skin blood vessels |
| C. | Panting |
| D. | Thermogenesis |
| Answer» E. | |
| 42. |
Which one of the following is representing the group of diatoms? |
| A. | Pinnularia, Navicula, Cymbella, Melosira |
| B. | Euglenamorpha, Hedneria , Heteronema, Colacium |
| C. | Nostoc, Anabaena, Aulosira, Cylindrospermum |
| D. | Cochlodinium, Gymnodinium, Lenodinium, Peridinium |
| Answer» B. Euglenamorpha, Hedneria , Heteronema, Colacium | |
| 43. |
Which one of the following is referred as the species occupation? |
| A. | Autecology |
| B. | Niche |
| C. | Ecosystem |
| D. | Biome |
| Answer» C. Ecosystem | |
| 44. |
Which one of the following is the largest group of fungi? |
| A. | Zygomycota |
| B. | Ascomycota |
| C. | Basidiomycota |
| D. | Deuteromycota |
| Answer» C. Basidiomycota | |
| 45. |
Which one of the following specially result in chronic liver disease leading to hepatic failure: |
| A. | HAV |
| B. | HBV |
| C. | HCV |
| D. | HEV |
| Answer» D. HEV | |
| 46. |
Which one of the following stage preceeds mitosis during cell cycle? |
| A. | G1 phase |
| B. | S phase |
| C. | G2 phase |
| D. | M phase |
| Answer» D. M phase | |
| 47. |
Which one of the following syndrome is the result of meiotic non dysjunction? |
| A. | Klinefelters syndrome |
| B. | Turners syndrome |
| C. | Downs syndrome |
| D. | All of these |
| Answer» E. | |
| 48. |
Which one of these is an insect? |
| A. | Mite |
| B. | Spider |
| C. | Moth |
| D. | Scorpion |
| Answer» D. Scorpion | |
| 49. |
Which one of the following vitamin is known as the “anti- Sterile” factor? |
| A. | Ascorbic acid |
| B. | Retinol |
| C. | Riboflavin |
| D. | a-tocopherols |
| Answer» B. Retinol | |
| 50. |
Which one of them is a micro-molecule? |
| A. | Polysaccharide |
| B. | Protein |
| C. | Hemoglobin |
| D. | ATP |
| Answer» E. | |