InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Zygote develops at the cost of the food stored in __________A. endospermB. pollen grainC. fruitD. ovary |
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Answer» Correct Answer - A Endosperm |
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| 52. |
Testes secrete the hormone ________A. progesteroneB. FSHC. estrogenD. testosterone |
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Answer» Correct Answer - D testosterone |
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| 53. |
`"Glucose"underset(A)underset(darr)to "Pyruvic acid" underset(B)underset(darr)to"Alcohol" to "Yeast"` Name the process A and B. |
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Answer» A-Glycolysis B-Fermentation. |
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| 54. |
One of the following organisms does not depend on simple diffusion of gases for breathing and respiration. This organism is:A. AmoebaB. PrawnC. PlanariaD. Bryophyllum |
| Answer» Correct Answer - B | |
| 55. |
Match the terms in column I with those in column II . `{:("Column I","Column II",),(A."Trypsin","Pancreas",),(B."Amylase","Liver",),(C."Bile","Gastric glands",),(D."Pepsin","Saliva",):}` |
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Answer» The matching of column I with II is as `{:("Column I","Column II",),(A."Trypsin","Pancreas",),(B."Amylase","Saliva",),(C."Bile","Liver",),(D."Pepsin","Gastric glands",):}` Trypsin in secreted by pancreas which digests proteins. Amylase is secreted by salivary gland with saliva and digests carbohydrate/starch bile is produced by Liver helps in the emulsification of fat. Pepsin is secreted by gastric glands present in stomach and digests protein. |
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| 56. |
Fibres are one of the important nutrients. |
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Answer» (i) We cannot digest fiber but they help in the digestion of other substances and egestion of undigested substances. (ii) hence, fibres are one of the important nutrients . |
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| 57. |
`"Glucose"underset(A)underset(darr)to "Pyruvic acid" underset(B)underset(darr)to"Alcohol" to "Yeast"` Give one point of difference between yeast cells and muscle cells in relation to the above process. |
| Answer» In yeast cell, the end product is alcohol and in muscle cells, the end product is Lactic acid. | |
| 58. |
`"Glucose"underset(A)underset(darr)to "Pyruvic acid" underset(B)underset(darr)to"Alcohol" to "Yeast"` what type of energy production is shown above ? |
| Answer» Anaerobic energy production. | |
| 59. |
Define the Aerobic respiration |
| Answer» Aerobic respiration is the process of producing energy from foodstuffs with the help of oxygen | |
| 60. |
Which of the following is most appropriate for aerobic respiration ?A. Glucose`overset("Mitochondria")to` Pyruvate `overset("Cytoplasm")toCO_(2)+H_(2)O+` EnergyB. Glucose`overset("Cytoplasm")to` Pyruvate `overset("Mitochondria")toCO_(2)+H_(2)O+` EnergyC. Glucose`overset("Cytoplasm")to` Pyruvate + Energy `overset("Mitochondria")toCO_(2)+H_(2)O+` EnergyD. Glucose `overset("Cytoplasm")to` Pyruvate + Energy `overset("Mitochondria")toCO+H_(2)O+` Energy |
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Answer» Correct Answer - b Aerobic respiration uses oxygen for respiration . It takes place in the mitochondria. After glycolysis , pyurvate (from cytoplasm) enters the mitochondria and is oxidised in a series of reactions, to form considerable amount of energy (ATP) , `CO_(2)and H_(2)O`. |
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| 61. |
2 molecules of ATP are obtained from each `FADH_(2)`, molecule. |
| Answer» Correct Answer - 1 | |
| 62. |
Special type of flexible protein fibres called _______ are formed between centromere of each chromosomes and both centrioles. |
| Answer» spindle fibres | |
| 63. |
Only food stuff is sufficient for energy production |
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Answer» Correct Answer - false Only food stuff is not sufficient for energy production , but oxygen is also necessary |
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| 64. |
Define the Vitamins |
| Answer» Vitamins are a group of heterogeneous compounds of which each is essential for proper operation of various processes in the body. | |
| 65. |
Pyruvic acid formed in glycolysis is converted into two molecules of ___________ . |
| Answer» Acetyl-coenzyme A | |
| 66. |
Glucose is incompletely oxidised in anaerobic respiration. |
| Answer» Correct Answer - True | |
| 67. |
________ and _________ are two steps of anaerobic respiration. |
| Answer» Glycolysis, fermentation | |
| 68. |
Nucleolus does not appear in each daughter nucleus. |
| Answer» Nucleolus also appears in each daughter nucleus. | |
| 69. |
Blood plasma contains 90% of water. |
| Answer» Correct Answer - True | |
| 70. |
Vitamins B and C are water - Soluble vitamins |
| Answer» Correct Answer - True | |
| 71. |
Two steps of anaerobic respiration . |
| Answer» Glycolysis and Fermentation | |
| 72. |
Scientist who discovered cyclical reaction of TCA cycle |
| Answer» Sir Hans Kreb | |
| 73. |
Glycolysis is also called Kreb’s cycle. |
| Answer» Glycolysis is also called as EMP pathway. | |
| 74. |
During anaerobic respiration of muscles, citric acid accumulates in the muscles due to which we feel tired. |
| Answer» During anaerobic respiration of muscles , lactic acid accumulates in the muscles due to which we feel tired. | |
| 75. |
Proteins arc the macromolcculcs formed by bonding together many _______. |
| Answer» Correct Answer - amino acids | |
| 76. |
What are lipids ? What is their role in our body ? |
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Answer» (i) The substance formed by specific chemical bond between fatty acids and alcohol are called as lipids. (ii) Digestion of lipids is their conversation into fatty acids and alcohol. (iii) Fatty acids are absorbed and distributed everywhere within the body. (iv) From these fatty acids, different cells produce various substances necessary to themselves. (v0 For examples , phospholipids which are essential for producing plasma membrane are formed from fatty acids. (vi) Fatty acid are also used for producing hormones like progesternone , estrogen , testosterone, aldosterone etc and the covering around axons of nerve cells. (vii) We get 9 Kcal of energy per gram of lipids. (viii) Excess of lipids are stored in adipose connective tissue in the body. |
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| 77. |
How all the life processes contribute to the growth and development of the body ? |
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Answer» (i) Various organ systems are continuously performing their functions in human body. (ii) Along with the various systems like digestive, respiratory, circulatory, excretory and control systems, different external and internal organs are performing their functions independently but through a complete co-ordination. (iii) This overall system is in need of continuous source of energy. (iv) Besides , it is co-ordinated byt he control system of the body i.e. each life process contributes in its own way in the process of energy production . (v) Thus , all life processes contribute to the growth and development of the body. |
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| 78. |
How are the various processes occurring in the human body controlled ? In how many ways ? |
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Answer» (i) Various organ systems are continuously performing their functions in human body. (ii) Along with the various systems like digestive, respiratory, circulatory, excretory and control systems, different external and internal organs are performing their functions independently but through a complete co-ordination. (iii) This is controlled in two ways-Nervous control by nervous system and chemical control by the hormones secreted by the endocrine glands. |
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| 79. |
What processes would you consider essential for maintaining life? |
| Answer» The various processes essential for maintaining life are : Respiration, Transport, Excretion, Control and Coordination, Growth, Movement and Reprodution. | |
| 80. |
The substance which is not reabsorbed into the blood capillaries surrounding the tubule of a nephron is mainly :A. glucoseB. amino acidC. ureaD. water |
| Answer» Correct Answer - C | |
| 81. |
In which of the following vertebrate group/groups,heart does not pump oxygenated blood to different parts of the body ?A. Pisces and amphibiansB. Amphibians and reptilesC. Amphibians onlyD. Pisces only |
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Answer» Correct Answer - d In Pisces (fishes), the heart is 2 chambered oral pumps deoxygenated blood to the gills, where oxygenation takes place by diffusion. The oxygenated blood from the gills is supplied to the body parts where oxygen is utilised and `CO_(2)` enters it making the blood deoxygenated. This deoxygenated blood returns to the heart. Thus, it has single circulation , i.e., blood passes through the heart only once during one complete cycle . |
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| 82. |
The first enzyme to mix with food in the digestive tract is:A. pepsinB. cellusloseC. amylaseD. trypsin |
| Answer» Correct Answer - C | |
| 83. |
What is the significance of emulsification of fats ? |
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Answer» Fats are complex molecules which are present in food in the form of large globules that makes it diffcult for enzymes to act on them . smaller salts present in bile (secreted by liver) break down fat molecules mechanically into smaller globules, i.e., emulsify the fast, thus ,increasing the effciency and efficiency and making it easy for the fat digesting enzymes to upon them. |
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| 84. |
What is common for Cuscuta,ticks and leeches ? |
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Answer» Cuscuta,ticks and leeches , all are parasites , i.e., organism which feeds on another living organism called its host. A parasite receives its food from the host but gives no benefit to host in return. It usually harms the host. |
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| 85. |
Describe double circulation of blood in human beings. Why is it necessary? |
| Answer» During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separte oxygenated and de-oxygenated blood because this makes thrir circulatory system is more efficient and helps in maintaining constant body temperature. | |
| 86. |
Which one of the following does not have valves ?A. heartB. arteriesC. capillariesD. veins |
| Answer» Correct Answer - C | |
| 87. |
Plant as well as animal eaters are known asA. OmnivoresB. HerbivoresC. CarnivoresD. None of the above |
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Answer» Correct Answer - A |
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| 88. |
Which one of the folowing vitamin is not fat soluble?A. DB. KC. AD. C |
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Answer» Correct Answer - D C |
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| 89. |
The process in which food containing large insoluble molecules is broken down into small water soluble molecules is ___________A. IngestionB. DigestionC. EgestionD. Assimilation |
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Answer» Correct Answer - B |
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| 90. |
Which of the following has the longest small intestine ?A. carnivoreB. omnivoreC. herbivoreD. autotroph |
| Answer» Correct Answer - C | |
| 91. |
Explain the process of nutrition in Amoeba. |
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Answer» Amoeba is a unicellular animals which follows holozoic mode of nutrition . The process of obtaining good by Amoeba is called phagocytosis . The various steps involved in phagocytorsis. (i) Ingestion Amoeba ingasts food particle by forming temporary finger like projections called pseudopodia around it . The food is engulfed forming a food vacuole. (ii) Inside the food vacuole, complex substances are broken down into simpler ones by digestive enzymes. (iii) Absorption The digested food present food present in the food vacuole diffuse into the cytoplasm . After this, the food vacuole disappears. (iv) Assmilation Food absorbed is used by Amoeba for various processes. (v) Egestion The remaining undigested material moves to the surface of the cell, the cell membrance ruptures at any place and undigested food is thrown out the body. |
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| 92. |
Amoeba ingest its food by usingA. PseudopodiaB. parapodiaC. TruepodiaD. None of the above |
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Answer» Correct Answer - A |
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| 93. |
The process of digestion of food in humans begin in:A. StomachB. food pipeC. mouthD. small intestine |
| Answer» Correct Answer - C | |
| 94. |
The process of obtaining food by Amoeba is known as :A. dialysisB. cytokinesisC. phagocytosisD. amoebiasis |
| Answer» Correct Answer - C | |
| 95. |
Two of the following organisms have a holozoic mode of nutrition. These organisms are:A. Paramecium and PlasmodiumB. Plasmodium and ParakeetC. Parakeet and ParameciumD. Paramecium and Parasite |
| Answer» Correct Answer - C | |
| 96. |
One of the following organisms has a saprophytic mode of nutrition. This organism is:A. mushroomB. malarial parasiteC. leechD. lice |
| Answer» Correct Answer - A | |
| 97. |
The organism having parasitic mode of nutrition is:A. PenicilluiumB. PlasmodiumC. ParameciumD. Parrot |
| Answer» Correct Answer - B | |
| 98. |
Paramoecium divides by longitudinal binary fission. |
| Answer» False . Paramoecium divides by transverse binary fission. | |
| 99. |
What prevents backflow of blood inside the heart during contration ?A. thick muscular walls of ventriclesB. valvesC. thin walls of atriaD. all of the above |
| Answer» Correct Answer - B | |
| 100. |
Blood is pumped from the heart to the entire body by the:A. lungsB. ventriclesC. atriaD. nerves |
| Answer» Correct Answer - B | |