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MCQs Question and Answer -Biology Set 2
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1. How many grams of carbohydrate is present in a hen’s egg?
0.61 g
0.5 g
1.3 g
2.5 g
2. What is the total number of permanent incisors in both the upper and lower jaws of the cattle and buffaloes?
4
8
12
16
3. What is the gestation period of camel?
280 to 300 days
320 to 350 days
365 to 400 days
425 to 440 days
4. From which of the following part of a plant opium is obtained?
Dried leaves
Dried latex
Roots
Stem bark
5. Which of the following crop is affected by the "early blight" disease?
Potato
Rice
Sugarcane
Wheat
6. Where is the Central Drug Research Institute of India is located?
Delhi
Bangalore
Madras
Lucknow
7. Which of the following deficiency causes the dietary deficiency of Xerophthalmia?
Protein
Vitamin A
Riboflavin
Unsaturated fatty acids, linoleic and linolenic acids
8. How many HIV positive infections that are occurring everyday in the world?
6,000
60,000
600,000
1,000,000
9. Bombyx mori, that produces fine filaments of silk inside the cocoon, is a:
Butterfly
Dipteran (silkworm)
Moth
Mulberry plant hemipteran
10. Why was DDT banned which an organ chlorine compound, used first to control malaria, carried in mosquitoes and later to a variety to insect pests?
It brings about a change in sex chromosomes
It persists in the environment and bio-accumulates
It increases its affinity hundred-fold for haemoglobin preventing its coupling with oxygen
All of these
11. What is the reason behind the small shrunken scrotal of an adult bulls straying on Delhi roads?
Congenital defect
Negative feedback due to extremely high levels of testosterone
Castration
All of these
12. Which of the following components increases the effectiveness of the Photosynthesis process?
Ultraviolet
Red
Blue
Infrared
13. What is the weight of human heart?
100 gms
300 gms
800 gms
1000 gms
14. Which of the following gland controls the blood pressure?
Thalamus gland
Adrenal gland
Thyroid gland
Pancreas gland
15. In which organ of the human body are the lymphocyte cells formed?
Liver
Long bone
Pancreas
Spleen
16. Which of the following is one of the functions of antigen?
Lowers body temperature
Destroys harmful bacteria
Triggers the immune system
Used as an antidote to poison
17. Which of the following process that does not involve evolution of CO2?
Combustion
Respiration
Fermentation
Photosynthesis
18. Name the Glands associated with the Human Digestive System?
Salivary Glands and Pancreas
Salivary Glands and Liver
Liver and Pancreas
Salivary Glands, Liver & Pancreas
19. Arrange the correct sequence of the steps involved in the process of Human Digestive System?
Digestion, Ingestion, Assimilation, Egestion and Absorption
Ingestion, Digestion, Absorption, Assimilation and Egestion
Egestion, Absorption, Digestion, Assimilation and Ingestion
Assimilation, Absorption, Ingestion, Digestion and Egestion
20. In which part of the body digestion of protein begins?
Pancreas
Stomach
Small Intestine
Large Intestine
21. Name the largest part of the Alimentary canal?
Large Intestine
Small Intestine
Liver
Stomach
22. Complete digestion of food occurs in:
Stomach
Small Intestine
Pancreas
Large Intestine
23. What is the function of Bile Juice secreted by Liver?
It makes the food alkaline.
It makes the food acidic.
It breaks down the food.
None of the above
24. Name the hardest material present in the body?
Dentin
Pulp
Enamel
None of the above
25. In which part of our body food gets absorbed?
Small Intestine
Large Intestine
Stomach
Liver
26. The undigested food stored in the liver in the form of carbohydrate is called:
Pulp
Glucose
Glycogen
Carbohydrate
27. Name the process through which much needed oxygen is supplied to all the cells of the plants?
Diffusion
Endosmosis
Exosmosis
Photosynthesis
28. Due to Water logging:
An air is expelled from in-between the particles of soil.
Oxygen becomes unavailable to the roots of the plants.
Plants respire anaerobically which produces alcohol and kill them.
All the above are correct.
29. Respiration in Plants takes place through:
Stomata
Stomata
Both A and B
Only A
30. Consider the following statements:
Respiration takes place both day and night.
Photosynthesis occurs during day time only.
Both A and B are correct.
Neither A nor B are correct.
31. Some plants store waste in their fruits in the form of solid bodies called:
Raphides
Lenticels
Stomata
Resins
32. Name the waste products secreted by Plants?
Carbon Dioxide
Oxygen
Water Vapour
All are correct.
33. Name an extension of the epidermal cells of a root which is in direct contact with the soil?
Root Hairs
Internodes
Bundle Scars
Pith
34. What is the process of intake of nutrients by an organism as well as the utilisation of these nutrients by the organisms called?
Nutrition
Photosynthesis
Chloroplasts
Digestion
35. The mode of nutrition in which an organism makes its own food from the simple inorganic material like carbon dioxide and water present in the surrounding is called:
Heterotrophic nutrition
Saprotrophic nutrition
Autotrophic nutrition
Holozoic nutrition
36. What is the mode of nutrition called in which organisms cannot make its own food from simple inorganic material and depends on other organisms for its food?
Autotrophic nutrition
Heterotrophic nutrition
Parasitic nutrition
Holozoic nutrition
37. When an organism obtains its food from decaying organic matter of dead plants, dead animals and rotten bread, etc., it is called:
Parasitic nutrition
Autotrophic nutrition
Holozoic nutrition
Saprotrophic nutrition
38. The nutrition in which an organism derives its food from the body of another living organism without killing it, it’s called:
Saprotrophic nutrition
Parasitic nutrition
Holozoic nutrition
Autotrophic nutrition
39. The nutrition in which an organism takes the complex organic food materials into its body by the process of ingestion, the ingested food is digested and then absorbed into the body cells of the organism:
Parasitic nutrition
Autotrophic nutrition
Holozoic nutrition
Heterotrophic nutrition
40. The process by which green plants make their own food from carbon dioxide and water by using sunlight energy in the presence of chlorophyll, is called:
Xanthophylls
Stomata
Photosynthesis
Chloroplast
41. Animals which eat only plants are called:
Herbivores
Omnivores
Carnivores
None of the above
42. What is the process of taking food into the body called?
Digestion
Assimilation
Ingestion
Egestion
43. The process of removal of toxic wastes from the body of an organism is called:
Transport
Respiration
Excretion
Nutrition
44. The movement of a plant part in response to light is called:
Phototropism
Geotropism
Chemotropism
Hydrotropism
45. The movement of plant part in response to gravity is called:
Thigmotropism
Thigmotropism
Phototropism
Geotropism
46. The movement of a plant part in response to a chemical stimulus is called:
Hydrotropism
Chemotropism
Thigmotropsim
Phototropism
47. The movement of a plant part in response to water is called:
Geotropism
Hydrotropism
Chemotropism
Thigmotropism
48. The directional movement of a plant part in response to the touch of an object is called:
Phototropism
Geotropism
Thigmotropism
Hydrotropism
49. The non-directional movement of a plant part in response to the touch of an object is called:
Thigmotropism
Thigmonasty
Phototropism
Photonasty
50. The pad-like swelling at the base of each leaf of a sensitive plant is called:
Pistol
Scape
Pulvini
Foliage
51. The non-directional movement of a plant part in response to light is called:
Phototropism
Thigmotropism
Geotropism
Photonasty
52. The shorter fibres on the body of a neuron are called:
Dendrites
Axon
Cytoplasm
Myelin sheath
53. The longest fibre on the cell body of a neuron is called:
Myelin
Nerve endings
Axon
Dendrites
54. The axon passes the impulse to another neuron through a junction called:
Nerve endings
Synapse
Cytoplasm
Nucleus
55. What are those reflex actions called which involve brain?
Reflex arcs
Reflex arcs
Spinal reflexes
None of the above
56. The chemical substances which coordinate the activities of living organisms and also their growth are called:
Hormones
Blood
Sodium
Cytoplasm
57. When the parent organism splits to form two new organisms, it is called:
Budding
Spore formation
Binary fission
Multiple fission
58. The process of getting back a full organism from its body part is called:
Spore formation
Budding
Regeneration
Fragmentation
59. The breaking up of the body of a simple organism into two or more pieces on maturing, each of which subsequently grows to form a complete new organism, is called:
Fragmentation
Vegetative propagation
Binary fission
Binary fission
60. When new plants are obtained from the parts of old plants, without the help of any reproductive organs, it is called:
Vegetative propagation
Spore formation
Fragmentation
Multiple fission
61. When the cut stems of two different plants are joined together in such a way that the two stems join and grow as a single plant, it is called:
Cutting
Layering
Grafting
None of the above
62. The transfer of pollen grains the anther of a stamen to the stigma of a carpel is called:
Germination
Pollination
Fertilisation
Tissue culture
63. Those organs which have same basic structure but different functions are called:
Analogous organs
Speciation
Fossils
Homologous organs
64. Those organs which have different basic structure but have similar appearance and perform similar functions are called:
Fossils
Analogous organs
Homologous organs
Speciation
65. What are those animals called which eat both plants and animals?
Omnivores
Herbivores
Carnivores
Decomposers
66. What is the shedding of flowers, leaves and fruits followed by formation of scar tissue in a plant called?
Abscission
Abscisic acid
Deciduous
Mitosis
67. A group of glands which produce various hormones is called:
Respiratory system
Excretion
Endocrine system
Central nervous system
68. Organic constituents of soil formed by complete or partial decomposition of plant and animal material is called:
Fauna
Humus
Fossil
Compost
69. The complex feeding relationships within a community is called:
Food chain
Food web
Trophic level
All of the above
70. What are heterotrophs, mostly bacteria and fungi, when obtain food by breaking down substances in dead protoplasm are called:
Omnivores
Herbivores
Decomposers
Carnivores
71. What is the act of supplying water to a field through artificial means called?
Irrigation
Insecticide
Fungicide
Monoculture
72. What is ploughing and cultivating the land called?
Irrigation
Domestication
Tilling
Weeding
73. In photosynthesis dark reaction, is called so because-
It occurs in dark.
It does not require light energy.
It cannot occur during daytime.
It occurs more rapidly at night.
74. Rate of photosynthesis does not depend upon:
Quality of light
Intensity of Light
Duration of Light
Temperature
75. For photosynthesis green plants require:
Chlorophyll only
Light
Carbon dioxide and water
All of the above
76. Photosynthesis is a _____ process.
Catabolic
Anabolic
Exothermic
Metabolic
77. Name the pigment which is responsible for absorption of light in plants?
Chlorophyll
Stoma
Xylem
Phloem
78. In bacteria name the colour of light which is responsible for photosynthesis?
Ultra-Violet
Blue
Red
None of the above
79. Quantasomes are found in:
Cristae of mitochondria
Thylakoid membrane of chloroplasts
Nucleus membrane
Lysosome
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