 |
| 12th Biology Chapter 15 - Homeostasis Questions Bank |
Biology 2nd Year Chapter 15 Homeostasis Solved MCQs, Important Short Questions and Long Questions Bank
MCQs
Please select the right answer.
1. 1 g of ammonia nitrogen requires how much water for excretion
2. A capillary tuft from which fluid leaves the circulatory system
3. A cell is placed in a solution and swells.This solution is
4. A network of closed tubule without internal openings is called:
5. A pair of kidneys consists of millions of functional units called:
6. A plant without cuticle in leaves and stem, having increased number ofstomata, partially or completely submerged in water is
7. About percent of kidney stones composed of uric acid
8. ADH increases ——— of ———–from the collecting duct
9. Aldosterone
10. All of the following are normally found in urine except
11. All the collecting tubules of human kidney finally open into the
12. Among the vertebrates hagfishes are isotonic with the surrounding:
13. Amonia is secreted by most
14. An animal when taken into hot area looses heat by sweating and when to coldarea increases muscular activity to produce more heat.The animal is
15. An increase in blood sugar level triggers the release of the hormone insulin bthe pancreas, the hormone insulin lowers blood sugar level restoring thebody to its original blood glucose level by converting glucose to glycogen.This is an example of
16. Animals that are not isotonic with their environment and have developedmechanisms to regulate their internal solute and water concentrations are
17. Animals that do not adjust their internal osmoregularity and are isotonicwith their environment are
18. Antidiuretic hormone is also called
19. Arginase splits the arginine to form urea and
20. Ascending loop of Henle
21. Bile
22. Birds maintain their body temperature within a range of
23. Blood enters the kidney through a branch of aorta called
24. Chemicals that cause fever and are produced from blood cells are
25. Cholesterol is excreted in the
26. Collecting duct
27. Conversion of ammonia into urea, occurs in
28. Daily urine output of man is
29. Dialyzer
30. Diluted solution compared to the cell concentration is termed as
31. Displace the set point of hypothalamus above the normal point of 37°C
32. Each kidney is enclosed by a thin membranous covering called
33. Flame cells are part of excretory system of:
34. Fresh water fish
35. From the distal convoluted tubule, filtrate will be carried to the
36. Guttation take place through
37. Haemodialysis means
38. High degree of renal failure is also called
39. Homeostasis is based on
40. Homeostasis ithe s process of maintaining a constant environment despite conditions
41. Hormone regulates the transfer of sodium from the nephron to the blood
42. Humming bird belongs to a category called
43. In an isotonic there would be
44. In ectotherms and endotherms heat can be lost through
45. In humans, excess nitrogen is eliminated form the body by mainly convertingit to
46. In mammalian kidney, the pyramids are seen in
47. In urea cycle, one molecule of Amonia and one molecule of co2>/sub>combine with one molecule of ornithine to form
48. Incidence of uric acid stone is:
49. It is a cyclic process of enzymatic reactions which operates in the liver cells asa result of which urea is formed from ammonia, carbondioxide and NH2 group
50. It is technique of breaking stones inside kidneys, ureters and urinary bladder
51. Lack of vasopressin hormone causes:
52. Land mammals respond to cold by raising their
53. Lithotripsy
54. Liver also has numerous crucial functions of
55. Liver Synthesizes
56. Malpighian body is composed of
57. Malpighian tubules are excretory organs found in
58. Malpighian tubules remove nitrogenous wastes from the:
59. Mammals maintain their body temperature within a range of
60. Mango plant is
61. Metabolic water is
62. Metabolism of purine and pyrimidine produces significance amount of:
63. Most invertebrates, fish, amphibians and reptiles are included in
64. Movement of ground squirrel to burrows in midday heat is an
65. Nephron
66. Nitrogenous base
67. Non-shivering thermogenesis is
68. Non-surgical removal of kidney stone is called:
69. Number of Ammonia molecules required to produce one molecule of urea is:
70. Oak
71. Osmoconformers?
72. Osmosis is defined as
73. Oxalates are present in
74. Percentage of kidney stones composed of calcium oxalate phosphate
75. Ph of human urine is
76. Pigments found in bile are formed during catabolism
77. Plants do not excrete ammonia, urea and uric acid because
78. Plants excrete
79. Plasmolysis of a human red blood cell would occur if the cell were choose right option
80. Posterior lobe
81. Protonephridium is found incavity
82. Receptors
83. Regulation of body temperature in homiotherms during cold environmentaltemperature involve
84. Regulation of body temperature in homiotherms during high environmentaltemperature involve
85. Reptile
86. Saliva and urine are used for evaporating cooling by
87. Separation of amino acid into amino and carboxyl group is know as
88. Stone of uric acid
89. Structural adaptation
90. The animals that generate their own body heat through heat production as by product during metabolism are called
91. The chief nitrogenous waste in birds and reptiles is
92. The contractile vacuole of a paramecium should be active when theparamecium is in
93. The entry of water from salty soil into roots of halophytes takes placebecause the root of halophytes develop
94. The excretory organs of Planaria are known as
95. The excretory product that requires maximum water for its removal is:
96. The excretory system of Planaria called
97. The fishes which drink large amount of seas water and excrete concentrated urine are:
98. The greater the demand of conserving water, the greater would be thenumber of
99. The hormone which increases the reabsorption of calcium ions in nephron is
100. The incidence of calcium oxalate type stones are
101. The incidence of Calcium Phosphate stones in human are:
102. The incidence of Calcium Phosphate stones in human are:
103. The internal opening of the metanephridium is knows as
104. The liver is
105. The major homeostatic function of liver is to synthesize:
106. The mechanism of evaporative cooling in respiratory tract of dog is known as
107. The more concentrated environment is termed as
108. The most toxic nitrogenous waste in animals is
109. The nephron is
110. The number of nephrons in ONE kidney of man is
111. The plants that have adaptation of small and thick leaves to reduce water loss are called
112. The plants that have adaptations for reduced rate of transpiration are:
113. The process by which some poisonous substances are secreted fromperitubular capillaries into nephric filtrate is termed as
114. The protection of internal environment from the harms of the fluctuation in external environment is termed as
115. The rate of heat production is increased by increasing muscle contraction, by movement it is called
116. The tendency of a solution to take up water when separated from pure waterby a selectively permeable membrane is called
117. The three major body fuels managed by the liver are
118. The vertebrate liver functions in all the following regulatory processes except
119. Thermoreceptors
120. These are animals capable of varying degrees of endothermic heatproduction, but they generally do not regulate body temperature within asnarrow a range as endotherms
121. These are animals that produce metabolic heat at low rates and relyprimarily on conditions of their surroundings
122. To hags fishes,sea water is
123. Tubular excretory system of earth worm consists of
124. Tubular structure which carries urine from bladder to outside
125. Two counter-current systems are formed in the kidney by the
126. Two major control centers for homeostasis are
127. Ultrafiltration occurs in
128. Unlike an earthworm, metanephridia in mammalian nephrone
129. Urea can be eliminated with quantity of water as compared to ammonia
130. Urea is produced in
131. Uric acid
132. Uric acid is the chief nitrogenous waste material in the excretory system of
133. Vasodilation
134. What are the components of feed back mechanism?
135. When an animal cell is placed in a hypotonic environment,it will
136. Which of the following activity is regulated by homeostasis?
137. Which of the following is an Endothem?
138. Which of the following is not encotherm?
139. Which of the following is not structure of kidney
140. Which one is example of Xerophytes?
141. Which one is not a mesophyte?
142. Which one of the following has least toxicity?
143. Which one of the following has maximum toxicity?
144. Which one of the following has medium toxicity?
145. Which one of the following is heterotherm?
146. Which organ is the central station of metabolism?
147. Which part of the plant body serves as excretophore?
148. Which process in the nephrone is least selective?
149. Xerophytes have
Short Questions
1. Define anhydrobiosis with an example.
2. Define Anhydrobiosis?
3. Define counter current multiplier mechanism.
4. Define Excretion?
5. Define homeostasis.
6. Define homeostasis.Give its importance.
7. Define mesophytes?
8. Define osmoregulation?
9. Define Thermoregulation?
10. Describe xerophytes and their adaptations?
11. Differentiate between ectotherms and endotherms.
12. Differentiate between hemodialysis and peritoneal dialysis.
13. Differentiate between shivering and non-shivering thermogenesis.
14. Differentiate between xerophytes and mesophytes. What are xerophytes? Give two adaptations of xerophytes.
15. Draw and label urea cycle.
16. Explain deamination?
17. Explain the process of panting with example.
18. Explain thermoregulation?
19. Give an exact definition of excretion?
20. How do cartilaginous fishes maintain lower internal salt concentration than sea water?
21. How do many fresh water animals including fishes remove excess water from the body?
22. How do some desert mammals like kangaroo rat survive without drinking water?
23. How much water is needed to excrete one gram of ammonia nitrogen, one gram of urea nitrogen and one gram of uric acid nitrogen?
24. How plants are distributed on the basis of osmoregulation?
25. Illustrate the function of Malpighian tubules.
26. In what form nitrogen is excreted by animals?
27. In which animals is ammonia excreted as the chief nitrogenous waste?
28. In which forms in animals is excreted low quantity or very small quantity of nitrogen?
29. Name different types of dialysis
30. Name the excretory structures in animal kingdom that are associated with digestive tract?
31. Name the structures of fresh water protozoans which are meant for osmoregulation?
32. What are ammonia excreting, urea excreting and uric acid excreting animals and the processes called as?
33. What are ammonotelic ureotelic and uricotelic?
34. What are cortical nephrons?
35. What are excretophore?
36. What are flame cells?
37. What are flame cells? Give their role. What are flame cells? Why they are called so?
38. What are heat shock proteins?
39. What are heterotherms?
40. What are Hydrophytes?
41. What are hydrophytes? What are their important adaptations?
42. What are hypercalcemia and hyperoxaluria?
43. What are Juxtamedullary nephrons?
44. What are malpighian tubules?
45. What are Mesophytes?
46. What are metabolic wastes?
47. What are nephridiopores?
48. What are osmoconformers and osmoregulators?
49. What are osmoconformers, as animals? Quote examples.
50. What are Osmoconformers?
51. What are peritubular capillaries?
52. What are pyrogens?
53. What are pyrogens?
54. What are Xerophytes?
55. What do hypotonic, hypertonic and isotonic environment mean for a cell?
56. What do you know about homeostasis?
57. What is bilirubin?
58. What is Bowman’s capsule?
59. What is counter-current multiplier?
60. What is Dialysis?
61. What is ebony?
62. What is excretion?
63. What is extracorporal shock wave lithotripsy?
64. What is glomerular filterate?
65. What is Glomerulus?
66. What is haemodialysis?
67. What is hypertonic environment and what changes occur in a cell in such environment? Differentiate between hypotonic and hypertonic environment.
68. What is Hypertonic environment?
69. What is Hypotonic environment?
70. What is Isotonic environment?
71. What is lithotripsy?
72. What is metanephridium?
73. What is nephron?
74. What is osmoregulation?
75. What is protonephridium?
76. What is the difference between the excretory system of insects and other animals?
77. What is the effect of hypertonic environment on a living cell?
78. What is the most common way of lithotripsy?
79. What is the name of the chemical which is retained by some marine cartilaginous fishes the protection against urea?
80. What is the nature of the metabolic waste materials in plants and in animals?
81. What is the percentage of incidence of different types of stones?
82. What is the role of aldosterone and antidiuretic hormones in kidney?
83. What is urea cycle?
84. What is ureter?
85. What is vasa recta?
86. What role has osmoregulation played in the distribution of plants and animals?
87. What will happen if a living cell is surrounded by a hypotonic solution ?
88. Which groups of animals excrete nitrogenous waste in the form of uric acid?
89. Which of the components of the internal environment of an organism may be affected by fluctuations in the external environment?
90. Which one of the nitrogenous wastes is the most toxic?
91. Which technique is used for the removal of kidney stones?
92. Who are osmoregulators?
93. Why are leaves said to be excretophores?
94. Why leaves are said to be excretophore?
95. Write down the names of the components of the living control system in animals meant for homeostatic regulations.
96. Write down the names of the nitrogenous wastes produced in the animals from the metabolism of purines and pyrimidine’s?
97. Write structural formula of urea and uric acid.
Long Questions
1. Describe the excretory system of cockroach.
2. Describe the osmoregulation in terrestrial environment.
3. Describe the role of liver as excretory organ.
4. Describe various kidney problems and their cure in human. Discuss kidney problems in humans.
5. Discuss excretion in Cockroach.
6. Discuss kidney problems with their cure.
7. Discuss major homeostatic functions of liver.
8. Discuss the excretion in Planaria.
9. Discuss the nature of excretory products in animals to various habitats, specifically in association of water availability.
10. Explain excretion in plants. Describe the excretion in plants.
11. How kidney stone are formed and cured?
12. What is excretion? How do plants excrete their wastes?
13. Write a note on osmoregulation in marine animals and fresh water animals.
14. Write a note on thermoregulation in mammals.
15. Write down the structure and function of nephron.
16. Write note on osmoregulation in marine fishes.