This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 7 Structural Organisation In Animals – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 7 Structural Organisation In Animals Quiz 2 (51 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the role of the liver in digestion? A) It produces bile that helps emulsify fats. B) It absorbs nutrients from the intestines. C) It secretes insulin to regulate blood sugar. D) It stores vitamins and minerals. Show Answer Correct Answer: A) It produces bile that helps emulsify fats. 2. What adaptive feature helps frogs avoid predators by blending with surroundings? A) Camouflage. B) Aestivation. C) Viviparity. D) Metamorphosis. Show Answer Correct Answer: A) Camouflage. 3. Connective tissue is A) The tissue that protects, supports, and binds together other body tissue. B) Tissue that is the lining, covering, and glandular tissue of the body. C) Tissue that contracts and shortens to produce movement. D) None of the above. Show Answer Correct Answer: A) The tissue that protects, supports, and binds together other body tissue. 4. When a ..... is suitably stimulated, an electrical disturbance is generated which swiftly travel along its plasma membrane A) Neuron. B) Muscles fibre. C) Myofibril. D) Intercalated disc. Show Answer Correct Answer: A) Neuron. 5. Frog's heart when taken out of the body continues to beat for sometime.I . Frog is a poikilotherm.II. Frog does not have any coronary circulationIII. Hear is myogenic in nature.IV. Hear is autoexcitable A) Only III. B) Only IV. C) I and II. D) III and iv. Show Answer Correct Answer: D) III and iv. 6. The basement membrane is made up of A) Epidermal cell only. B) Endodermal cell. C) No cell at all but is a product of epithelial cell. D) Both (a) and (b). Show Answer Correct Answer: C) No cell at all but is a product of epithelial cell. 7. This type of epithelium has only one layer of cells A) Stratified epithelium. B) Simple epithelium. C) All the above. D) None of the above. Show Answer Correct Answer: B) Simple epithelium. 8. How many of the following statement are related to bone are correct?a.it is specialised connective tissue having hard and pliable ground substance rich in calcium salt and collagen fibrewhich give bone its strength.b.it is the main tissue that provide structural frame to the body.c.it supports and protects softer tissue and organs.d.bone cell osteocytes present in a space called lacunae. A) Two. B) Four. C) One. D) Three. Show Answer Correct Answer: D) Three. 9. Neurons have a nucleus. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Which statement best describes cutaneous respiration in frogs? A) Oxygen is pumped by strong lungs. B) Gills exchange gases in water. C) Oxygen diffuses through moist skin. D) Air sacs store oxygen during sleep. Show Answer Correct Answer: C) Oxygen diffuses through moist skin. 11. Which pair correctly matches seasonal dormancy in frogs with its condition? A) Hibernation-daytime rest. B) Aestivation-summer sleep. C) Aestivation-winter sleep. D) Hibernation-summer sleep. Show Answer Correct Answer: B) Aestivation-summer sleep. 12. What is a tissue in multicellular animals? A) A single cell executing all vital activities alone. B) A group of similar cells performing a specific function. C) A collection of organs coordinating digestion and respiration. D) A fluid that transports substances between organs. Show Answer Correct Answer: B) A group of similar cells performing a specific function. 13. Which statement best distinguishes unicellular from multicellular animals? A) Unicellular animals possess many specialised organs. B) Multicellular animals have one nucleus per organism. C) Unicellular animals use one cell for all functions. D) Multicellular animals cannot perform reproduction independently. Show Answer Correct Answer: C) Unicellular animals use one cell for all functions. 14. Identify the correct chambers of a frog's heart. A) Three ventricles with sinus. B) Two ventricles and one atrium. C) Two atria and one ventricle. D) One atrium and two ventricles. Show Answer Correct Answer: C) Two atria and one ventricle. 15. Animal gtissue are broadly classified in to four types as A) Squamous, columnar, cuboidal, ciliated. B) Simple, compound, glandular, and special. C) Epithelium, connective, neural and muscular. D) Neural, epithelium, connective and muscular. Show Answer Correct Answer: D) Neural, epithelium, connective and muscular. 16. Found in organs like the bladder that need to stretch A) Pseudostratified Columnar. B) Transitional. C) Simple Cuboidal. D) Stratified squamous. Show Answer Correct Answer: B) Transitional. 17. Neck is absent in frog. This helps in- A) Catching prey. B) Swimming in water. C) Jumping on ground. D) Respiration. Show Answer Correct Answer: C) Jumping on ground. 18. On an average female coackroach produces ..... a ..... oothecae, each containing ..... b ..... eggs.the nymphs grows moulting about ..... c ..... times ton reach theb adult form. A) A.2to20, b-14to16, c-13. B) A.9-10, b-14to16, c-13. C) A-9to10, b-15 to 40, c-10. D) A-14to16, b-9to10, c-13. Show Answer Correct Answer: B) A.9-10, b-14to16, c-13. 19. What ecological role do frogs play? A) They are primary producers in the food chain. B) They eat insects and maintain ecological balance. C) They are top predators in their ecosystems. D) They primarily feed on plants and algae. Show Answer Correct Answer: B) They eat insects and maintain ecological balance. 20. Cuboidal epithelium with brushborder Of microvilli is found in A) Ducts of salivary glands. B) Proximal convoluted tubule Ofnephron. C) Eustachian tube. D) Lining of intestine. Show Answer Correct Answer: B) Proximal convoluted tubule Ofnephron. 21. Earthworms don't have teeth to grind their food so they use another organ to do so. It is called a ..... A) Esophagus. B) Crop. C) Intestine. D) Gizzard. Show Answer Correct Answer: D) Gizzard. 22. In frogs, excretory wastes are carried to the kidneys by what? A) Lymph fluid. B) Gastric secretions. C) Blood circulation. D) Air pressure. Show Answer Correct Answer: C) Blood circulation. 23. Goblet cells of alimentary canalare modified from A) Chondrocytes. B) Columnar epithelial cellschondrocytes. C) Compound epithelial cells. D) Squamous epithelial cells. Show Answer Correct Answer: B) Columnar epithelial cellschondrocytes. 24. Which of the following features is not present in Periplaneta americana? A) Indeterminate and radial cleavage during embryonic development. B) Exoskeleton composed of n-acetylglucosamine. C) Metemerically segmented body. D) Schizocoelom as body cavity. Show Answer Correct Answer: A) Indeterminate and radial cleavage during embryonic development. 25. Sexual diamorphism in coackroach is shown by A) Anal styles which are present in female only. B) Anal cerci which are present in female only. C) Anal cerci which are present in male only. D) Anal style which are present in male only. Show Answer Correct Answer: D) Anal style which are present in male only. 26. What is the role of the cloaca in the reproductive system of frogs? A) It serves as a common passage for excretory and reproductive products. B) It is responsible for the fertilization of eggs. C) It helps in the digestion of food. D) It acts as a protective covering for the eggs. Show Answer Correct Answer: A) It serves as a common passage for excretory and reproductive products. 27. How is the frog brain regionally organized? A) Forebrain, midbrain, hindbrain. B) Cranial, spinal, sacral. C) Frontal, parietal, occipital. D) Cerebral, limbic, cortical. Show Answer Correct Answer: A) Forebrain, midbrain, hindbrain. 28. The adult frog is- A) Herbivorous. B) Carnivorous. C) Omnivorous. D) None of these. Show Answer Correct Answer: B) Carnivorous. 29. Which option correctly orders structural organisation levels from simplest to most complex in animals? A) Organ system $\rightarrow$ organ $\rightarrow$ tissue $\rightarrow$ cell. B) Tissue $\rightarrow$ cell $\rightarrow$ organ $\rightarrow$ organ system. C) Cell $\rightarrow$ tissue $\rightarrow$ organ $\rightarrow$ organ system. D) Cell $\rightarrow$ organ $\rightarrow$ tissue $\rightarrow$ organ system. Show Answer Correct Answer: C) Cell $\rightarrow$ tissue $\rightarrow$ organ $\rightarrow$ organ system. 30. Which statement about frog limbs is accurate? A) Forelimbs are larger and muscular. B) Hind limbs are larger and muscular. C) Hind limbs end in four digits. D) Forelimbs end in five digits. Show Answer Correct Answer: B) Hind limbs are larger and muscular. 31. A scientist studies how stomach, lung, heart and kidney are formed from basic tissues arranged in specific patterns. Which concept is being applied? A) Energy production by individual organs. B) Genetic variation among unicellular organisms. C) Division of labour within single cells. D) Organ formation from organised tissues. Show Answer Correct Answer: D) Organ formation from organised tissues. 32. Which type of tissue correctly matches with its location? A) Areolar tissue-Tendons. B) Transitional epithelium-Tip of nose. C) Cudoidal epithelium-Lining of stomach. D) Smooth muscle-Wall of intestine. Show Answer Correct Answer: D) Smooth muscle-Wall of intestine. 33. In frog, food is captured by- A) Limbs. B) Tentacles. C) Trilobed tongue. D) Bilobed tongue. Show Answer Correct Answer: D) Bilobed tongue. 34. In the male frog, vasa efferentia connect the testes to which structure? A) Bidder's canal in kidneys. B) Urinary bladder chamber. C) Directly to cloaca opening. D) Oviduct funnel region. Show Answer Correct Answer: A) Bidder's canal in kidneys. 35. What type of muscle(s) is involuntary? A) Skeletal and smooth. B) Cardiac and skeletal. C) Smooth and cardiac. D) Skeletal. Show Answer Correct Answer: C) Smooth and cardiac. 36. The connective tissue that connects bones at the joints is ..... A) Cartilage. B) Bone. C) Ligament. D) Both cartilage and bone. Show Answer Correct Answer: C) Ligament. 37. What is not found in skin of frog? A) Scales. B) Epidermis. C) Poison glands. D) Mucous glands. Show Answer Correct Answer: A) Scales. 38. What physiological functions are enhanced by epithlial cells bearing microvilli and cilia? A) Decreased surface area for absorption of oxygen. B) Increased surface area for absorption & capturing debris. C) Increased surface area for absorption of oxygen. D) Decreased surface area for absorption & capturing debris. Show Answer Correct Answer: B) Increased surface area for absorption & capturing debris. 39. What is the function of the midbrain in frogs? A) Regulates heart rate and blood pressure. B) Characterized by a pair of optic lobes. C) Controls the digestive system. D) Responsible for the production of hormones. Show Answer Correct Answer: B) Characterized by a pair of optic lobes. 40. During aestivation and hibernation, gas exchange in frogs occurs mainly through which structure? A) Skin surface diffusion. B) Expanded lung alveoli. C) Open glottis airflow. D) Buccal floor pumping. Show Answer Correct Answer: A) Skin surface diffusion. 41. The supportive structure of our pinna is also found in ..... A) Tip of nose. B) Vertebrae. C) Nails. D) Ear ossicles. Show Answer Correct Answer: A) Tip of nose. 42. Compared to blood the lymph has AMore RBCs and less WBCsBNo plasmaCPlasma without proteinsDMore WBCs and no RBCs A) More RBCs and less WBCs. B) No plasma. C) Plasma without proteins. D) More WBCs and no RBCs. Show Answer Correct Answer: D) More WBCs and no RBCs. 43. Stratum germinativum is an example of which kind of epithelium? A) Squamous. B) Columnar. C) Cuboidal. D) Ciliated. Show Answer Correct Answer: C) Cuboidal. 44. Protiens responsible for producing cartilage is called A) Collagen. B) Elastin. C) Chondrin. D) None of the above. Show Answer Correct Answer: C) Chondrin. 45. What class do frogs belong to? A) Class Amphibia of phylum Chordata. B) Class Mammalia of phylum Chordata. C) Class Aves of phylum Chordata. D) Class Reptilia of phylum Chordata. Show Answer Correct Answer: A) Class Amphibia of phylum Chordata. 46. What is the primary role of the sinus venosus in the frog heart? A) Produces hormones for heart rate. B) Contracts to pump arterial blood. C) Stores lymph before circulation. D) Collects venous blood to right atrium. Show Answer Correct Answer: D) Collects venous blood to right atrium. 47. In male cockroaches, sperms are stored in which part of the reproductive system? A) Seminal vesicles. B) Mushroom glands. C) Testes. D) Vas deferens. Show Answer Correct Answer: A) Seminal vesicles. 48. Which of the following is false about the respiration of frog? A) Frogs respire on land and in water by the same method. B) In water, skin acts as aquatic respiratory organ (Cutaneous respiration). C) Dissolved oxygen in water is exchanged through the skin by diffusion. D) On land, the buccal cavity, skin and lungs act as respiratory organs. Show Answer Correct Answer: A) Frogs respire on land and in water by the same method. 49. What is the evolutionary trend in organ systems? A) Complexity in organ and organ systems displays certain discernable trends. B) Organ systems become less complex over time. C) All organ systems evolve at the same rate. D) Organ systems are static and do not show evolutionary trends. Show Answer Correct Answer: A) Complexity in organ and organ systems displays certain discernable trends. 50. During an injury, if nasal septum gets damaged, which cartilage is perfused for its recovery? A) Fibro cartilage. B) Hyaline cartilage. C) Elastic cartilage. D) Calcified cartilage. Show Answer Correct Answer: B) Hyaline cartilage. 51. The segments on the ventral side of the abdomen of cockroach is called A) Sternum. B) Tergum. C) Notum. D) Sclerite. Show Answer Correct Answer: A) Sternum. ← PreviousRelated QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 7 Structural Organisation In Animals Quiz 1Class 11 Biology Chapter 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division QuizClass 11 Biology Chapter 11 Transport In Plants QuizClass 11 Biology Chapter 12 Mineral Nutrition QuizClass 11 Biology Chapter 13 Photosynthesis In Higher Plants QuizClass 11 Biology Chapter 14 Respiration In Plants QuizClass 11 Biology Chapter 15 Plant Growth And Development Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books