12th Class Biology MCQs Quiz 2 pdf download Homeostasis

Here is important Biology Class 12th important Solved MCQs Chapter 1 Homeostasis. Student get excellent Grades in Board Matric exam after preparation Online Biology Quiz. Biology Multiple Choice Questions. Multiple Choice Questions 2nd Year MCQs Biology F.Sc. Part 2 Chapter No.15 HomeostasisBest MCQs for Entry Test MDCAT, ECAT & Pakistan Medical Commission Total MCQs = 50 51. The entry of water from salty soil into roots of halophytes takes place because the root of halophytes develop: (A) High water potentialB) Low osmotic pressure(C) Low water potential(D) All of these Show Answer Answer: (C) Low water potential (adsbygoogle = window.adsbygoogle || []).push({}); 52. Animals that do not adjust their internal osmoregularity and are isotonic with their environment are: (A) Osmoconformcrs(B) Osmoregulators (C) Thermoregulators(D) Thermoconfermors Show Answer Answer: (A) Osmoconformcrs (adsbygoogle = window.adsbygoogle || []).push({}); 53. Animals that are not isotonic with their environment and have developed mechanisms to regulate their internal solute and water concentrations are: (A) Osmoconformers(B) Osmoregrulators(C) Thermoregualtors(D) Both (A) and (B) Show Answer Answer: (B) Osmoregrulators 55. An increase in blood sugar level triggers the release of the hormone insulin b the pancreas, the hormone insulin lowers blood sugar level restoring the body to its original blood glucose level by converting glucose to glycogen.This is an example of: (A) Positive feed back(B) Negative feed back(C) Homeostatic imbalance(D) None of these Show Answer Answer: (B) Negative feed back Click for More Online Biology MCQs Tests 2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50 56. A fish in fresh water: (A) Produces dilute urine(B) Have a hypertonic body(C) Produces concentrated urine(D) (A) and (B) Show Answer Answer: (D) (A) and (B) 57. To hags Fishes, Sea water is: (A) Isotonic(B) Hypotonic(C) Hypertonic(D) None of these Show Answer Answer: (A) Isotonic (adsbygoogle = window.adsbygoogle || []).push({}); 58. A fish in marine water: (A) Produces concentrated urine(B) Have a hypotonic body(C) Produces dilute urine(D) (A) and (B) Show Answer Answer: (D) (A) and (B) 59. Metabolic water is: (A) Water outside the cells of animals(B) Produced by oxidation of fats(C) sefill to desert mammals(D) (B) and (C) Show Answer Answer: (D) (B) and (C) (adsbygoogle = window.adsbygoogle || []).push({}); 60. Plants do not excrete ammonia, urea and uric acid because: (A) They lack nitrogenous caste(B) Their metabolism is protein based(C) Their nitrogenous products are recycled(D) All Show Answer Answer: (C) Their nitrogenous products are recycled Click for More Online Biology MCQs Tests MCQs Biology F.Sc. Part 2 (2nd Year)Chapter No.15 HomeoStasis 61. Plants excrete: (A) Excess water(B) Excess oxygen(C) Excess carbon dioxide(D) All Show Answer Answer: (D) All (adsbygoogle = window.adsbygoogle || []).push({}); 62. Which one of the following has maximum toxicity? (A) Ammonia(B) Urea(C) Uric acid(D) Creatinine Show Answer Answer: (A) Ammonia 63. Which one of the following has medium toxicity? (A) Ammonia(B) Urea(C) Uric acid(D) Water Show Answer Answer: (A) Ammonia (adsbygoogle = window.adsbygoogle || []).push({}); 64. Which one of the following has least toxicity? (A) Ammonia(b) Urea(C) Uric acid(D) All are highly toxic Show Answer Answer: (C) Uric acid 65. Guttation take place through: (A) Stomata(C) Lenticels(b) injured tissue(d) Hydathodes Show Answer Answer: (d) Hydathodes Click for More Online Biology MCQs Tests 2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50 66. The excretory organs of Planaria are known as: (A) Protonephridia(B) Flame cells(C) Both (A) and (B)(D) Metanephriclia Show Answer Answer: (C) Both (A) and (B) 67. Tubular excretory system of earth worm consists of (A) Protonephridia(B) Coxal gland(C) Malpighian tubules(D) Metanephridia Show Answer Answer: (D) Metanephridia (adsbygoogle = window.adsbygoogle || []).push({}); 68. The internal opening of the metanephridium is knows as: (A) Nephrostoms(B) (B) Nephridiopore(C) Excretory pore(D) All Show Answer Answer: (A) Nephrostoms 69. Liver Synthesizes: (A) Non-essential aminoacids(B) Plasma(C) Cholesterol(D) All Show Answer Answer: (D) All (adsbygoogle = window.adsbygoogle || []).push({}); 70. In humans, excess nitrogen is eliminated form the body by mainly converting it to: (A) Urea(B) Uric acid(C) Ammonia(D) Amine phosphate Show Answer Answer: (A) Urea Click for More Online Biology MCQs Tests MCQs Biology F.Sc. Part 2 (2nd Year)Chapter No.15 HomeoStasis 71. The liver is: (A) Smallest internal organ(B) Medium-sized internal organ(C) Body s largest internal organ(D) All options are incorrect Show Answer Answer: (C) Body s largest internal organ (adsbygoogle = window.adsbygoogle || []).push({}); 72. The three major body fuels managed by the liver are: (A) Protein, vitamins and minerals(B) Carbohydrate, fat and protein(C) Glucose, fructose and sucrose(D) Glucose, iron and protein Show Answer Answer: (B) Carbohydrate, fat and protein 73. Pigments found in bile are formed during catabolism: (A) Haem catabolism(B) Globin catabolism(C) Cholesterol catabolism(D) Both (A) and (C) Show Answer Answer: (A) Haem catabolism (adsbygoogle = window.adsbygoogle || []).push({}); 74. The nephron is: (A) The site of urine storage(B) Globin catabolism(C) The site where ADH is produced(D) Also called the "Bowman's capsule" Show Answer Answer: (B) Globin catabolism 75. From the distal convoluted tubule, filtrate will be carried to the: (A) Renal corpuscle(B) Collecting duct(C) Nephron loop(D) Proximal convoluted tubule Show Answer Answer: (B) Collecting duct Click for More Online Biology MCQs Tests 2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50 76. All of the following are normally found in urine except: (A) Sodium ions(B) Uric acid(C) Creatinine(D) Glucose Show Answer Answer: (D) Glucose 77. Hormone regulates the transfer of sodium from the nephron to the blood: (A) Parathomione(B) Anti-diuretic(C) Aldosterone(D) Vasopression Show Answer Answer: (C) Aldosterone (adsbygoogle = window.adsbygoogle || []).push({}); 78. Conversion of ammonia into urea, occurs in: (A) Kidneys(B) Lungs(C) Intestine(D) Liver Show Answer Answer: (D) Liver 79. Separation of amino acid into amino and carboxyl group is know as: (A) AminationB) Excretion(C) Dear nation(D) Egestion Show Answer Answer: (C) Dear nation (adsbygoogle = window.adsbygoogle || []).push({}); 80. Uric acid is the chief nitrogenous waste material in the excretory system of: (A) Reptiles(B) Birds(C) Insects(D) All of these Show Answer Answer: (D) All of these Click for More Online Biology MCQs Tests MCQs Biology F.Sc. Part 2 (2nd Year)Chapter No.15 HomeoStasis 81. Which of the following is not structure of kidney: (A) Cortex(B) Medulla(C) Pelvis(D) Urethra Show Answer Answer: (D) Urethra (adsbygoogle = window.adsbygoogle || []).push({}); 82. In mammalian kidney, the pyramids are seen in: (A) Cortex(B) Medulla(C) Pelvis(D) Hilus Show Answer Answer: (B) Medulla 83. The number of nephrons in ONE kidney of man is: (A) 4 million(B) 2 million(C) 8 million(D) 1 million Show Answer Answer: (D) 1 million (adsbygoogle = window.adsbygoogle || []).push({}); 84. ADH increases ___________ of____________from the collecting duct: (A) Absorption, sodium(B) Diffusion, chlorine(C) Absorption, water(D) Diffusion, Ammonia Show Answer Answer: (C) Absorption, water 85. Two counter-current systems are formed in the kidney by the: (A) Henle's loop and PCT(B) Henle's loop and DCT(C) Henle's loop and collecting duct(D) Henle's loop and vasa rectae Show Answer Answer: (D) Henle's loop and vasa rectae Click for More Online Biology MCQs Tests 2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50 86. Cholesterol is excreted in the: (A) Sebum(B) Bile(C) Sweat(D) Both (A and (B) Show Answer Answer: (B) Bile 87. Malpighian body is composed of (A) Bowman s capsule only(B) Glomerulus only(C) Bowman's capsule & Glomerulus(D) Henle's loop and vasa rectae Show Answer Answer: (C) Bowman's capsule & Glomerulus (adsbygoogle = window.adsbygoogle || []).push({}); 88. Daily urine output of man is: (A) 1-2 liters(B) 1-3 liters(C) 1-4 liters(D) 1-5 liters Show Answer Answer: (A) 1-2 liters 89. Tubular structure which carries urine from bladder to outside: (A) Ureter(B) Hilus(C) Pelvis(D) Urethra Show Answer Answer: (D) Urethra (adsbygoogle = window.adsbygoogle || []).push({}); 90. Ultrafiltration occurs in: (A) Bowman s capsule(B) Proximal convoluted tube(C) Henle s loop(D) Distal convoluted tube Show Answer Answer: (A) Bowman s capsule Click for More Online Biology MCQs Tests MCQs Biology F.Sc. Part 2 (2nd Year)Chapter No.15 HomeoStasis 91. The greater the demand of conserving water, the greater would be the number of: (A) Juxta-medullary nephrons(B) Cortical nephrons(C) Capillaries of glomerulus(D) Both (A) and (B) Show Answer Answer: (A) Juxta-medullary nephrons (adsbygoogle = window.adsbygoogle || []).push({}); 92. Each kidney is enclosed by a thin membranous covering called: (A) PeritoniumB) Peritreme(C) PerizoniumD All Show Answer Answer: (A) Peritonium 93. Ph of human urine is (A) 7.4(B) 3.5(C) 5.00(D) 8.00 Show Answer Answer: (C) 5.00 (adsbygoogle = window.adsbygoogle || []).push({}); 94. The hormone which increases the reabsorption of calcium ions in nephron is: (A) Aldosterone(B) Parathormone(C) Anti-diuretic(D) Vasopression Show Answer Answer: (B) Parathormone 95. The process by which some poisonous substances are secreted from peritubular capillaries into nephric filtrate is termed as: (A) Tubular reabsorption(B) Tubular secretion(C) Counter-current exchange(D) None of these Show Answer Answer: (B) Tubular secretion Click for More Online Biology MCQs Tests 2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50 96. It is a cyclic process of enzymatic reactions which operates in the liver cells as a result of which urea is formed from ammonia, carbondioxide and NH2 group: (A) Ornithine cycle(B) Citruline cycle(C) Arginine cycle(D) All of these Show Answer Answer: (A) Ornithine cycle (adsbygoogle = window.adsbygoogle || []).push({}); 98. Blood enters the kidney through a branch of aorta called: (A) Afferent arteriole(B) Renal artery(C) Efferent arteriole(D) Renal vein Show Answer Answer: (B) Renal artery 99. A capillary tuft from which fluid leaves the circulatory system: (A) Bowman capsule(B) Proximal convoluted tube(C) Glomerulus(D) Loop of Henle Show Answer Answer: (C) Glomerulus (adsbygoogle = window.adsbygoogle || []).push({}); 100. In ectotherms and endotherms heat can be lost through: (A) Evaporation(B) Radiation(C) Convection(D) All Show Answer Answer: (D) All Click for More Online Biology MCQs Tests (adsbygoogle = window.adsbygoogle || []).push({}); We also available on Social Mediaat facebook( fb )https://facebook.com/786Timespkhttps://facebook.com/786TimesnewsAlso available onTwitter ID: https://twitter.com/786times (adsbygoogle = window.adsbygoogle || []).push({});

12th Class Biology MCQs Quiz 2 pdf download Homeostasis

2nd Year Biology MCQs F.Sc. Part 2
Chapter No.15
Homeostasis
Total MCQs = 50

96. It is a cyclic process of enzymatic reactions which operates in the liver cells as a result of which urea is formed from ammonia, carbondioxide and NH2 group:

98. Blood enters the kidney through a branch of aorta called:

99. A capillary tuft from which fluid leaves the circulatory system:

100. In ectotherms and endotherms heat can be lost through:

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کووِڈ ویکسین کا چھ اقسام کے کینسر سے تعلق،کورین تحقیق کا متنازع دعویٰ

خان پور تھانہ سٹی کی حدود پاکستان چوک سے 19 سالہ خاتون اغواء

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Who is Better? Blue Jays vs Dodgers 2026 Legendary Rankings

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کووِڈ ویکسین کا چھ اقسام کے کینسر سے تعلق،کورین تحقیق کا متنازع دعویٰ

خان پور تھانہ سٹی کی حدود پاکستان چوک سے 19 سالہ خاتون اغواء

Israel, Iran war must end immediately, Trump

3 people were killed in a house in Darkali Saidan area of Rawalpindi

Terrible fire at Raiwind Sunder State factory, brought under control after 12 hours

Brutal murder of a university teacher in Saudi Arabia

The mystery of the murder of an 8-year-old girl in Mandi Bahauddin has been solved

The destruction of Ukraine is a lesson for Pakistan

Leave a Reply

2nd Year Biology MCQs F.Sc. Part 2Chapter No.15 HomeostasisTotal MCQs = 50

96. It is a cyclic process of enzymatic reactions which operates in the liver cells as a result of which urea is formed from ammonia, carbondioxide and NH2 group:

98. Blood enters the kidney through a branch of aorta called:

99. A capillary tuft from which fluid leaves the circulatory system:

100. In ectotherms and endotherms heat can be lost through:

Read Next

Who is Better? Blue Jays vs Dodgers 2026 Legendary Rankings

Edit School Contact Information – Largest School Directory

کووِڈ ویکسین کا چھ اقسام کے کینسر سے تعلق،کورین تحقیق کا متنازع دعویٰ

خان پور تھانہ سٹی کی حدود پاکستان چوک سے 19 سالہ خاتون اغواء

Israel, Iran war must end immediately, Trump

3 people were killed in a house in Darkali Saidan area of Rawalpindi

Terrible fire at Raiwind Sunder State factory, brought under control after 12 hours

Brutal murder of a university teacher in Saudi Arabia

The mystery of the murder of an 8-year-old girl in Mandi Bahauddin has been solved

The destruction of Ukraine is a lesson for Pakistan

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2nd Year Biology MCQs F.Sc. Part 2
Chapter No.15
Homeostasis
Total MCQs = 50