Tiêu đề 12th Bio MCQs Full Book Final PDF (schoolzi.com).pdf ✅

Multiple Choice Questions 3 Biology F.Sc. Part-II HOMEOSTASIS 1. The more concentrated environment is termed as: (A) Anisotonic (B) Isotonic (C) Hypotonic (D) Hypertonic 2. Mango plant is: (A) Mesophyte (B) Hydrophyte (C) Xerophyte (D) None of the above 3. The excretory system of Planaria called: (A) Metanephridium (B) Protonephridium (C) Nephrone (D) Nephridium 4. In urea cycle, one molecule of Amonia and one molecule of co<sub>2>/sub> combine with one molecule of ornithine to form: (A) Urea (B) Arginine (C) Arginosuccinate (D) Citrulline 5. Unlike an earthworm, metanephridia in mammalian nephrone: (A) Filters blood instead of coelomic fluid (B) Function in both osmoregulation and excretion of nitrogenous wastes (C) Form urine by changing the composition of fluid inside the tubule (D) Is intimately associated with a capillary network 6. Which process in the nephrone is least selective? (A) Filteration (B) Transport across the epithelium of a collecting duct (C) Reabsorption (D) Secretion educatedzone.com SCHOOLZI
Multiple Choice Questions 4 Biology F.Sc. Part-II 7. Malpighian tubules are excretory organs found in: (A) Vertebrate (B) Annelids (C) Insects (D) Flatworms 8. Amonia is secreted by most: (A) Adult amphibians (B) Organism that produce eggs (C) Bony fishes (D) Insect 9. The vertebrate liver functions in all the following regulatory processes except: (A) Detoxification of harmful chemicals (B) Energy reserves in the formation of glycogen (C) Production of Nitrogenous wastes (D) Osmoregulation by variable excretion of salts 10. Non-shivering thermogenesis is: (A) A hormone triggers the heat production by increasing metabolic rate (B) A behavioral adaptation for absorbing heat in ectotherms (C) Muscle contraction by movements as in winter months (D) A heat producing method of large fishes 11. Urea can be eliminated with quantity of water as compared to ammonia: (A) 1/10 (B) 1/20 (C) 1/5 (D) 1/50 12. Oxalates are present in: (A) Meat (B) Tomatoes (C) Green vegetable only (D) Green vegetable and tomatoes 13. Movement of ground squirrel to burrows in midday heat is an: (A) Physiological adaptation (B) Structural adaptation (C) Behavioral adaptation (D) Morphological & physiological adaptations 14. Normal body temperature range between: (A) 36.1^oC - 37.8^oC (B) 36.0^oC – 38.8^oC (C) 36.7^oC – 37.8^oC (D) 37.1^oC – 38.6^oC educatedzone.com SCHOOLZI

Multiple Choice Questions 6 Biology F.Sc. Part-II 25. Fresh water fish: (A) Body fluid isotonic to external environment (B) Passive loss of water from gills (C) Large amount of hypotonic urine contain little salt (D) Kidney 26. Bile: (A) Liver (B) Body fluid isotonic to external environment (C) Kidney (D) Large amount of hypotonic urine contain little salt 27. Osmoconformers? (A) Body fluid isotonic to external environment (B) Passive loss of water from gills (C) Large amount of hypotonic urine contain little salt (D) Kidney 28. Thermoreceptors: (A) Cockroach (B) Hypothalamus (C) Loop of Henle (D) Bowman capsule 29. Uric acid: (A) Cockroach (B) Loop of Henle (C) Bowman capsule (D) Hypothalamus 30. Lithotripsy: (A) Cockroach (B) Hypothalamus (C) Loop of Henle (D) Non-surgical removal of gall bladder stone 31. Posterior lobe: (A) Active transport (B) Sensor (C) Passive transport (D) Ant diuretic hormone 32. Ascending loop of Henle: (A) Passive transport (B) Active transport of Na+ ions (C) Sensor (D) Native to cold region educatedzone.com SCHOOLZI</sub>