This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 7 Structural Organisation In Animals – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 7 Structural Organisation In Animals Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The frog is described as ureotelic because it primarily excretes which compound? A) Creatinine in solid form. B) Ammonia as gaseous waste. C) Urea as main nitrogen waste. D) Uric acid in crystals. Show Answer Correct Answer: C) Urea as main nitrogen waste. 2. Areolar connective tissue joins A) Bones with muscles. B) Integument with muscles. C) Fat body with muscles. D) Bones with bones. Show Answer Correct Answer: B) Integument with muscles. 3. Read the following statement and find out the incoorect statements. A) The structure of cell vary according to their function. B) The epithelial cell are compactly packed with little intercellular matrix. C) Main function of compound epithelium is secretion and absorption. D) The inner lining lof ducts of salivary glands and pancreratic ducts is coverd by compound epithelium. Show Answer Correct Answer: C) Main function of compound epithelium is secretion and absorption. 4. This tissue has lots of fixed fibroblasts and connected the skin to underlying organs A) Dense Connective. B) Loose Connective. C) Adipose. D) Blood. Show Answer Correct Answer: B) Loose Connective. 5. The lens in the eye of cockroach is called A) Omatia. B) Ommatidium. C) Mosaic. D) Compound eye. Show Answer Correct Answer: B) Ommatidium. 6. Lines ducts of kidneys A) Simple Squamous. B) Simple Cuboidal. C) Transitional. D) Simple Columnar. Show Answer Correct Answer: B) Simple Cuboidal. 7. The organic matrix of the cartilage is called A) Chondrin. B) Chondroblast. C) Osteoblast. D) The orgaHyaline. Show Answer Correct Answer: A) Chondrin. 8. Which sense organ is externally visible in frogs? A) Tympanum for hearing. B) Taste papillae line tongue. C) External ear pinna. D) Nasal external lobe. Show Answer Correct Answer: A) Tympanum for hearing. 9. Which feature indicates frogs have a closed circulatory system? A) Hemolymph replaces blood cells. B) Blood bathes organs directly. C) Blood stays within vessels. D) Open sinuses collect fluids. Show Answer Correct Answer: C) Blood stays within vessels. 10. Identify the external ear structure in frogs that receives sound signals. A) Tympanum. B) Cochlea. C) Operculum. D) Pinna. Show Answer Correct Answer: A) Tympanum. 11. Which muscle type can contract rapidly with great force, BUT tires easily and must rest after short periods of activity. A) Skeletal. B) Smooth. C) Cardiac. D) None of the above. Show Answer Correct Answer: A) Skeletal. 12. In all connective tissue cell except ..... , the cell secrete fibres of structural protein called collagen or elastin A) Cartilage. B) Bone. C) Areolar connective. D) Blood. Show Answer Correct Answer: D) Blood. 13. What is the role of the tympanum in frogs? A) It is responsible for color change in the skin. B) It aids in the locomotion of the frog. C) It serves as an organ of hearing. D) It helps in the digestion of food. Show Answer Correct Answer: C) It serves as an organ of hearing. 14. Which of the following tissues lines the interior and exterior of organs? A) Connective. B) Nervous. C) Epithelial. D) Muscle. Show Answer Correct Answer: C) Epithelial. 15. This type of tissue includes ligaments, tendons, and cartilage A) Epithelial. B) Connective. C) Nervous. D) Muscular. Show Answer Correct Answer: B) Connective. 16. The 10th segment bears a pair of jointed filamentous structure called A) Anal cerci in both sexes. B) Anal style, in both sexes. C) Anal cerci, in male coackroach only. D) Anal styles which are present in females only. Show Answer Correct Answer: A) Anal cerci in both sexes. 17. Why is the frog's alimentary canal relatively short? A) They are herbivores with bulky fiber. B) They are carnivores reducing intestine length. C) They have no stomach needing less length. D) They are omnivores with varied diet. Show Answer Correct Answer: B) They are carnivores reducing intestine length. 18. Frogs belonging to class ..... of phylum chordata are ..... animals and show hibernation in ..... and aestivation in ..... A) Hemichordata, poikilothermic, winter, summer. B) Amphibia, poikilothermic, winter, summer. C) Amphibia, poikilothermic, summer, rainy season. D) Amphibia, warmblooded, winter, summer. Show Answer Correct Answer: B) Amphibia, poikilothermic, winter, summer. 19. Pulmonary respiration in frogs primarily involves which pathway? A) Nostrils to buccal cavity to lungs. B) Skin to blood to kidneys. C) Mouth to gills to blood. D) Nares to swim bladder to liver. Show Answer Correct Answer: A) Nostrils to buccal cavity to lungs. 20. What are the three parts of the frog's brain? A) Fore-brain, mid-brain, and hind-brain. B) Cerebellum, medulla, and cortex. C) Frontal lobe, parietal lobe, and occipital lobe. D) Thalamus, hypothalamus, and amygdala. Show Answer Correct Answer: A) Fore-brain, mid-brain, and hind-brain. 21. The function of the gap junction is to A) Performing cementing to keep neighbouring cells together. B) Facilitate communitation between adjoining cells by connecting the cytoplam for rapid transfer of ions, small molecules and some large. C) Separate two cells from each other. D) Stop substance from leaking across a tissue. Show Answer Correct Answer: B) Facilitate communitation between adjoining cells by connecting the cytoplam for rapid transfer of ions, small molecules and some large. 22. What is the role of the conus arteriosus in frogs? A) It helps in the digestion of food. B) It regulates body temperature. C) It carries blood from the heart to the body. D) It filters waste from the blood. Show Answer Correct Answer: C) It carries blood from the heart to the body. 23. What does the digestive system of frogs consist of? A) Alimentary canal and digestive glands. B) Stomach and liver only. C) Mouth and esophagus only. D) Intestines and pancreas only. Show Answer Correct Answer: A) Alimentary canal and digestive glands. 24. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of A) Urea. B) Potassium urate. C) Ammonia. D) Calcium carbonate. Show Answer Correct Answer: B) Potassium urate. 25. Mast cells of connective tissue release A) Vasopressin and histamine. B) Heparin and histamine. C) Heparin and calcitonin. D) Mast cellSerotonin and melanin. Show Answer Correct Answer: B) Heparin and histamine. 26. One of the main function of frog's skin is- A) Storage of excess food in the form of subcutaneous fat. B) Absorption of ultraviolet rays to produce vitamin D. C) Diffusion of respiratory gases. D) Excretion of nitrogenous waste in the form of uric acid. Show Answer Correct Answer: C) Diffusion of respiratory gases. 27. What is the role of the vocal sacs in male frogs? A) They are used for breathing. B) They help in swimming. C) They assist in digestion. D) They are used for producing sound. Show Answer Correct Answer: D) They are used for producing sound. 28. Exocrine glands secrete mucus, saliva, earwax, oil, milk, digestive enzymes and other cell products. Is this statement true or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 29. Which type of connective tissue cells secretes proteins into the matrix to make fibers? A) Fibroblasts. B) Chondrocytes. C) Mast cells. D) Macrophages. Show Answer Correct Answer: A) Fibroblasts. 30. The most active phagocytic white blood cells are A) Eosinophils and lymphocytes. B) Neutrophils and monocytes. C) Neutrophils and eosinophils. D) Lymphocytes and macrophages. Show Answer Correct Answer: B) Neutrophils and monocytes. 31. Read the following statements and find out incorrect statements. A) Mosaic vission is common during night hence called nocturnal vision. B) In coackroach, brain supplies nerve to antennae and compound eye. C) Fat body, nephrocyte, urecose gland also helps in excretion in coackropach. D) Male coackroach bear a pair of collateral gland which function as accessory reproductive gland. Show Answer Correct Answer: D) Male coackroach bear a pair of collateral gland which function as accessory reproductive gland. 32. With the help of several oomatidia coackroach can recieve several image of an object.this kind of vision is called A) Nocturnal vision, being common during night. B) Mosaic vision, with more sensitivity but less resolution. C) Mosaic vision with more resolution but less sensitivity. D) Nocturnal vision, with more sensitivity and more resolution. Show Answer Correct Answer: B) Mosaic vision, with more sensitivity but less resolution. 33. Male frogs can be distinguished from female frogs primarily by which feature? A) Presence of vocal sacs and copulatory pad. B) Presence of external pinna and whiskers. C) Larger body size and longer tail. D) Brighter dorsal coloration and crest. Show Answer Correct Answer: A) Presence of vocal sacs and copulatory pad. 34. Frog kidneys contain structural units called what? A) Glomerular alveoli sacs. B) Renal sinus chambers. C) Hepatic filtration lobes. D) Urini ferous tubules or nephrons. Show Answer Correct Answer: D) Urini ferous tubules or nephrons. 35. What is the common Indian species used to study frog morphology? A) Rana tigrina. B) Xenopus laevis. C) Bufo bufo. D) Rana temporaria. Show Answer Correct Answer: A) Rana tigrina. 36. In male coackroach, the external genetilia is represented by A) Three phallomere-right, left, dorsal. B) Three gonophysis-right, left and ventral. C) Three phallomere-right, left and lateral. D) Chitinous symmetrical structure. Show Answer Correct Answer: B) Three gonophysis-right, left and ventral. 37. What is the role of the muscular tongue in frogs? A) Used for communication. B) Used in capturing prey. C) Used for swimming. D) Used for breathing. Show Answer Correct Answer: B) Used in capturing prey. 38. Identify the types Of cell junctionsthat help to stop the leakage ofthe substances across a tissueand facilitation Of communicationwith neighbouring cells via rapidtransfer of ions and molecules A) Gap junctions and adheringjunctions, respectively. B) Tight junctions and gap junctions, respectively. C) Adhering junction and tightjunctions, respectively. D) Adhering junctions and gapjunctions, respectively. Show Answer Correct Answer: B) Tight junctions and gap junctions, respectively. 39. What type of circulatory system do frogs have? A) A dual circulatory system with gills. B) An open type with sinuses. C) A well-developed closed type. D) A simple open type. Show Answer Correct Answer: C) A well-developed closed type. 40. These cells are small and flat A) Squamous. B) Columnar. C) Cuboidal. D) Pseudostratified. Show Answer Correct Answer: A) Squamous. 41. Which cartilage is present on the end of long bone? A) Hyaline cartilage. B) Fibrous cartilage. C) Calcified cartilage. D) Elastic cartilage. Show Answer Correct Answer: A) Hyaline cartilage. 42. What is the significance of the renal portal system in frogs? A) It connects the kidney and lower parts of the body. B) It filters blood before it reaches the heart. C) It regulates body temperature in aquatic environments. D) It aids in the digestion of food. Show Answer Correct Answer: A) It connects the kidney and lower parts of the body. 43. In frogs, which structure receives openings of the oesophagus, stomach, intestine, and rectum and serves as a common chamber for waste elimination and reproductive ducts? A) Cloaca common chamber for ducts. B) Buccal cavity for food intake. C) Urinary bladder for urine storage. D) Glottis chamber for air passage. Show Answer Correct Answer: A) Cloaca common chamber for ducts. 44. Which cranial nerve pair number is present in frogs? A) Ten pairs from the brain. B) Twelve pairs from the brain. C) Eight pairs from the brain. D) Six pairs from the brain. Show Answer Correct Answer: A) Ten pairs from the brain. 45. Secretes mucus in the respiratory tract, specifically the trachea A) Stratified Squamous. B) Simple Squamous. C) Pseudostratified Columnar. D) Transitional. Show Answer Correct Answer: C) Pseudostratified Columnar. 46. Cartilage is presenta.in the tips of nose and middle ear jointsb.between adjacent bone of vertebral columnc.between adjacent bone of limb and hands in adults A) A, b and c. B) A and b. C) B and c. D) A and c. Show Answer Correct Answer: A) A, b and c. 47. What is the composition of blood in frogs? A) Plasma and cells, including RBCs, WBCs, and platelets. B) Only plasma and red blood cells. C) Plasma, but no cells. D) Only white blood cells and platelets. Show Answer Correct Answer: A) Plasma and cells, including RBCs, WBCs, and platelets. 48. What is the function of the forebrain in frogs? A) Regulates heart rate and blood pressure. B) Includes olfactory lobes and paired cerebral hemispheres. C) Controls movement and coordination. D) Processes visual information from the eyes. Show Answer Correct Answer: B) Includes olfactory lobes and paired cerebral hemispheres. 49. Which one of the following cells is not capable of metabolizing glucose to carbon dioxide aerobically? A) Red blood cells. B) Liver cells. C) Unstriated muscle cells. D) White blood cells. Show Answer Correct Answer: A) Red blood cells. 50. Which digestive gland produces bile that is stored in the gall bladder? A) Liver. B) Spleen. C) Pancreas. D) Kidney. Show Answer Correct Answer: A) Liver. 51. Component of blood responsible for producing antibodies is? A) Monocytes. B) Thrombocytes. C) Lymphocytes. D) Erythrocytes. Show Answer Correct Answer: C) Lymphocytes. 52. The structure present in man but absent in frog is- A) Pancreas. B) Salivary gland. C) Thyroid gland. D) Adrenal gland. Show Answer Correct Answer: B) Salivary gland. 53. What is the significance of the frog's ability to absorb water through the skin? A) It allows frogs to hydrate without drinking. B) It helps frogs to camouflage in their environment. C) It enables frogs to breathe underwater. D) It allows frogs to regulate their body temperature. Show Answer Correct Answer: A) It allows frogs to hydrate without drinking. 54. What is the significance of frogs in the food chain? A) They serve as an important link in the food chain and food web. B) They are primarily herbivores and do not play a significant role. C) They are at the top of the food chain as predators. D) They have no impact on the food web. Show Answer Correct Answer: A) They serve as an important link in the food chain and food web. 55. Which is the most flexible cartilage in the body A) Hyaline cartilage. B) Elastic cartilage. C) Neuro cartilage. D) Fibro cartilage. Show Answer Correct Answer: B) Elastic cartilage. 56. Exoskeleton in cockroach forms plates called A) Chitin. B) Sclerites. C) Scales. D) Scutes. Show Answer Correct Answer: B) Sclerites. 57. The epithelium which forms the inner wall of blood vessels is ..... A) Ciliated epithelium. B) Squamous epithelium. C) Compound epithelium. D) Cuboidal epithelium. Show Answer Correct Answer: B) Squamous epithelium. 58. Lines ducts and glands A) Transitional. B) Cuboidal. C) Simple Squamous. D) Columnar. Show Answer Correct Answer: B) Cuboidal. 59. Epithelial tissue regenerate really quickly A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin? A) Neutrophils. B) Eosinophils. C) Monocytes. D) Basophils. Show Answer Correct Answer: D) Basophils. 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