MCQOPTIONS
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MCQOPTIONS
This section includes 184 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Removal of excess salts from body is done by help of |
| A. | sweat glands |
| B. | sebaceous glands |
| C. | mammary glands |
| D. | All of the Above |
| Answer» B. sebaceous glands | |
| 2. |
Upon foreign invasion, blood cells produce chemicals called |
| A. | pathogens |
| B. | pyrogens |
| C. | receptors |
| D. | effectors |
| Answer» C. receptors | |
| 3. |
Hip joint is formed by hip bone by a proximal bone |
| A. | tibia |
| B. | fibula |
| C. | femur |
| D. | humerus |
| Answer» D. humerus | |
| 4. |
Drinking water and eating, moist food can compensate loss of water in animals that are |
| A. | terrestrial |
| B. | fresh water |
| C. | marine |
| D. | All of the Above |
| Answer» B. fresh water | |
| 5. |
Facial bones which are unpaired are |
| A. | mandible |
| B. | vomer |
| C. | radius |
| D. | Both a and b |
| Answer» E. | |
| 6. |
Tubular epithelium releases substances into lumen, which balances pH are |
| A. | carbohydrates |
| B. | calcium ions |
| C. | hydrogen ions |
| D. | nitrogen ions |
| Answer» D. nitrogen ions | |
| 7. |
Hinge joint and ball and socket joint are examples of |
| A. | immovable joints |
| B. | movable joints |
| C. | freely movable joints |
| D. | All of the Above |
| Answer» D. All of the Above | |
| 8. |
Each muscle fiber is composed of large number of |
| A. | myofibrils |
| B. | fibrils |
| C. | tendons |
| D. | ligaments |
| Answer» B. fibrils | |
| 9. |
Hypotonic environment leads to cell towards |
| A. | concentration |
| B. | turgidity |
| C. | wilting |
| D. | shrinking |
| Answer» C. wilting | |
| 10. |
Nephrons have extensive blood supply by |
| A. | renal veins |
| B. | renal arteries |
| C. | hepatic arteries |
| D. | peritoneal veins |
| Answer» C. hepatic arteries | |
| 11. |
Sarcoplasm of skeletal muscles fiber is composed of |
| A. | glycogen |
| B. | myoglobin |
| C. | globulin |
| D. | Both a and b |
| Answer» E. | |
| 12. |
Skeletal muscles is attached to bone by a bundle of collagen and non-elastic fibers called |
| A. | tendons |
| B. | filaments |
| C. | cartilage |
| D. | hoofs |
| Answer» B. filaments | |
| 13. |
Transfer of heat out to environment is done by |
| A. | radiation |
| B. | evaporation |
| C. | vaporisation |
| D. | Both a and b |
| Answer» E. | |
| 14. |
In Osteoporosis, mass of bone is reduced and is caused by low levels of |
| A. | estrogen |
| B. | calcium |
| C. | vitamin-D |
| D. | minerals |
| Answer» B. calcium | |
| 15. |
Hormone aldosterone is secreted by |
| A. | cortical nephrons |
| B. | renal cortex |
| C. | adrenal cortex |
| D. | medullary cortex |
| Answer» D. medullary cortex | |
| 16. |
Bones bend and deform due to lack of calcium salts deposition and lead to |
| A. | osteomalcia |
| B. | hypercalcemia |
| C. | hypocalcaemia |
| D. | Osteoporosis |
| Answer» B. hypercalcemia | |
| 17. |
Bats and humming birds are |
| A. | endotherms |
| B. | ectotherms |
| C. | heterotherms |
| D. | hypotherms |
| Answer» D. hypotherms | |
| 18. |
Animals and plants have distributed themselves in a wide range of habitats due to |
| A. | osmoregulation |
| B. | thermoregulation |
| C. | glucoregulation |
| D. | Both a and b |
| Answer» B. thermoregulation | |
| 19. |
Tube by which urine is passed outside body is called |
| A. | pelvis |
| B. | urinary bladder |
| C. | urethra |
| D. | ureter |
| Answer» D. ureter | |
| 20. |
When internal environment is concentrated due to external change this is |
| A. | hypertonic environment |
| B. | hypotonic environment |
| C. | isotonic environment |
| D. | hyperactive environment |
| Answer» B. hypotonic environment | |
| 21. |
In adequate or surplus supply of water, reabsorption in kidneys is |
| A. | reduced |
| B. | enhanced |
| C. | increase |
| D. | Both b and c |
| Answer» B. enhanced | |
| 22. |
Presence of metabolic waste in body can cause serious hazards hence they should be |
| A. | retained |
| B. | consumed |
| C. | eliminated |
| D. | recycled |
| Answer» D. recycled | |
| 23. |
Inner end of nephrons is a cup shaped swelling structure known as |
| A. | glomerulus |
| B. | Bowman's capsule |
| C. | medulla |
| D. | Bowman's net |
| Answer» C. medulla | |
| 24. |
Arthritis is really chronic in |
| A. | osteoarthritis |
| B. | rheumatoid arthritis |
| C. | gouty arthritis |
| D. | All of the Above |
| Answer» E. | |
| 25. |
Kidneys remove nitrogenous wastes and act as a |
| A. | excretory product |
| B. | osmoregulatory organ |
| C. | osmoconformers |
| D. | thermoregulatory organs |
| Answer» C. osmoconformers | |
| 26. |
Components of living control system are |
| A. | receptor |
| B. | control centre |
| C. | effectors |
| D. | All of the Above |
| Answer» E. | |
| 27. |
Ball of capillaries which surrounds bowman's capsule is called |
| A. | glomerulus |
| B. | bowman's capsule |
| C. | medulla |
| D. | bowman's man |
| Answer» B. bowman's capsule | |
| 28. |
In case of acute shortage of water, animals convert wastes into excretory product which requires minimum amount of water which is |
| A. | urea |
| B. | ammonia |
| C. | uric acid |
| D. | All of Above |
| Answer» D. All of Above | |
| 29. |
Mammals maintain a constant temperature range, which is about |
| A. | 37-38 °C |
| B. | 36-38 °C |
| C. | 37-38 °C |
| D. | 37-39 °C |
| Answer» C. 37-38 °C | |
| 30. |
Displacement of set point in hypothalamus is due to |
| A. | pathogens |
| B. | pyrogens |
| C. | receptors |
| D. | effectors |
| Answer» C. receptors | |
| 31. |
In insects, there is no structural or functional relationship between excretory or digestive system except in |
| A. | earthworm |
| B. | cockroach |
| C. | lizards |
| D. | ants |
| Answer» C. lizards | |
| 32. |
Nephrons which are arranged along border of medulla looping deep in inner medulla are called |
| A. | cortical nephrons |
| B. | medullar nephrons |
| C. | juxtamedullary nephrons |
| D. | pyramidal nephrons |
| Answer» D. pyramidal nephrons | |
| 33. |
In case of uremia, only treatment left is |
| A. | kidney transplant |
| B. | lithotripsy |
| C. | dialysis |
| D. | lung transplant |
| Answer» B. lithotripsy | |
| 34. |
Tuft of cilia propels interstitial fluid into |
| A. | tentacles |
| B. | septum |
| C. | nucleus |
| D. | tubular system |
| Answer» E. | |
| 35. |
Uric acid is excretory product of animals from |
| A. | reptiles |
| B. | birds |
| C. | amphibians |
| D. | Both a and b |
| Answer» E. | |
| 36. |
Animals which do not require to adjust osmotic state with respect to their external environment, are termed as |
| A. | osmoregulators |
| B. | osmoconformers |
| C. | thermoregulators |
| D. | thermoconformers |
| Answer» C. thermoregulators | |
| 37. |
Smooth muscles are |
| A. | visceral |
| B. | non-striated |
| C. | involuntary |
| D. | All of the Above |
| Answer» E. | |
| 38. |
System which is responsible for detecting change and signaling control system is called |
| A. | control system |
| B. | feedback mechanism |
| C. | osmoregulation |
| D. | thermoregulation |
| Answer» C. osmoregulation | |
| 39. |
Mammalian kidney is specialized to conserve water above |
| A. | 99% |
| B. | 90% |
| C. | 99.50% |
| D. | 99.05% |
| Answer» D. 99.05% | |
| 40. |
A cellular which capped body throughout have specialized cells called as |
| A. | nephridiophore |
| B. | nephrostome |
| C. | Cnidarians |
| D. | flame cells |
| Answer» E. | |
| 41. |
14 phalanges of toe is attached to |
| A. | metacarpals |
| B. | metatarsals |
| C. | carpals |
| D. | tarsals |
| Answer» C. carpals | |
| 42. |
Two long polypeptide chains coiled together to form |
| A. | myosin tail |
| B. | actin tail |
| C. | frectin tail |
| D. | Both a and b |
| Answer» B. actin tail | |
| 43. |
If glomerulus part of nephrons is destroyed by pathogens, it results in elevated levels of urea and nitrogenous waste in |
| A. | plasma level |
| B. | blood vessels |
| C. | capillaries |
| D. | veins |
| Answer» B. blood vessels | |
| 44. |
Amoeba and paramecium possess a specialized structures for removing water from body, called as |
| A. | contractile vacuoles |
| B. | flagella |
| C. | pseudopodia |
| D. | ligament |
| Answer» B. flagella | |
| 45. |
Mammals have a special organ for rapid heat production called |
| A. | yellow fat |
| B. | brown fat |
| C. | grey fat |
| D. | white fat |
| Answer» C. grey fat | |
| 46. |
Earthworm posses another type of tubular excretory system called as |
| A. | protonephridium |
| B. | metanephridium |
| C. | malphigian tubules |
| D. | etanephridium |
| Answer» C. malphigian tubules | |
| 47. |
Acute form of Arthritis can be treated by |
| A. | Estrogen Replacement Therapy |
| B. | sun exposure |
| C. | surgery |
| D. | antibiotics |
| Answer» E. | |
| 48. |
Remodeled area of bone responds to same set of mechanical |
| A. | movements |
| B. | stimuli |
| C. | receptors |
| D. | effectors |
| Answer» C. receptors | |
| 49. |
Most toxic excretory product which quickly dissolves in body fluids is |
| A. | urea |
| B. | ammonia |
| C. | uric acid |
| D. | creatine |
| Answer» C. uric acid | |
| 50. |
Rib cage is composed of |
| A. | 12 pairs of ribs |
| B. | 14 pair of ribs |
| C. | 10 pair of ribs |
| D. | 8 pairs of ribs |
| Answer» B. 14 pair of ribs | |