Topicwise Questions - Plants and Trees

51. Allium Sepa is the scientific name of –

  1. Potato
  2. Onion
  3. Ginger
  4. Garlic

52. Which of these is not essential for photosynthesis?

  1. Carbon dioxide
  2. Water
  3. Oxygen
  4. Sunlight

53. Leaves of which tree are mostly used by silkmoth farmers?

  1. Mulberry
  2. Peepal
  3. Banyan
  4. Willow

54. Which method is used to propagate banana plants?

  1. Grafting
  2. Stem cutting
  3. Sucker removal
  4. Layering

55. From which of the following do the plants receive their nutrients mainly?

  1. Atmosphere
  2. Sunlight
  3. Soil
  4. Water

56. Which parts of plants respire?

  1. Leaves
  2. Stems
  3. Roots
  4. All of the above

57. Which of the following is manufactured from wood pulp?

  1. Nylon
  2. Acrylic
  3. Rayon
  4. Bakelite

58. Oxygen released by plants during the process of photosynthesis comes from

  1. Water
  2. CO2
  3. Chlorophyll
  4. Tissues

59. Which element is required by plants to synthesize chlorophyll?

  1. Magnesium
  2. Sodium
  3. Manganese
  4. Helium

60. Which of the following causes Rust of Wheat disease?

  1. Bacteria
  2. Virus
  3. Fungus
  4. Protozoan

61. The plant which produces bisexual flowers is –

  1. Papaya
  2. Cucumber
  3. Rose
  4. Corn

62. Ocimum tenuiflorum is the scientific name of which plant?

  1. Cinnamon
  2. Cardamom
  3. Basil
  4. Neem

63. Which of these produces winged seeds so that they can be carried by wind to other places?

  1. Xanthium
  2. Drumstick
  3. Spinach
  4. Bitter gourd

64. In which of these plants do the fruits burst to scatter the seeds for propagation?

  1. Castor
  2. Papaya
  3. Cotton
  4. Martynia

65. Through which of the following can the Bryophyllum reproduce?

  1. Stem
  2. Leaves
  3. Roots
  4. Flower



66. From which part of the plant is the flax fibre obtained?

  1. Root
  2. Fruit
  3. Stem
  4. Seed

67. Auxillary bud develops into –

  1. Flower
  2. Stem
  3. Root
  4. Fruit

68. Which of the following is a plant hormone?

  1. Butane
  2. Propane
  3. Methane
  4. Ethylene

69. Which of the following is an example of rhizome?

  1. Cassava
  2. Turnip
  3. Carrot
  4. Ginger

70. A radicle is a part of the –

  1. Flower
  2. Fruit
  3. Root
  4. Seed

71. Which of the following is obtained from the plant Camellia sinensis?

  1. Coffee
  2. Ginger
  3. Tea
  4. Cardamom

72. Which of the following is an example of rhizome?

  1. Potato
  2. Radish
  3. Turmeric
  4. Beet

73. Which of the following fruits cannot be ripened artificially by ethylene?

  1. Mango
  2. Banana
  3. Grape
  4. Tomato

74. Which of the following is an aggregate fruit?

  1. Mango
  2. Raspberry
  3. Tomato
  4. Guava


75. Xylem helps in the transportation of which of the following in a plant?

  1. Oxygen
  2. Water
  3. Carbon dioxide
  4. Both water and oxygen