03 Botany Quiz | Botany GK MCQ

 

1 >>Q41. Gametophytes are ?

• (A) A. Haploid structures
• (B) B. Hamete producers
• (C) C. Prathalli
• (D) D. All the above

2 >>Q42. Presence of a cambium indicates ?

• (A) A. open vascular bundle
• (B) B. closed bundle
• (C) C. incomplete vascular bundle
• (D) D. broken vascular bundle

3 >>Q43. The phyllotaxy of Gnetum is ?

• (A) A. opposite
• (B) B. ternate
• (C) C. alternate
• (D) D. decussate

4 >>Q44. National Botanical Research Institute is situated at ?

• (A) A. Delhi
• (B) B. Kolkata
• (C) C. Coimbatore
• (D) D. Lucknow

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5 >>Q45. The sperm in cycas is ?

• (A) A. biciliote and spirally coiled
• (B) B. biciliate and pyriform
• (C) C. top - shaped and multiciliate
• (D) D. top - shaped without cilia

6 >>Q46. Circincite venation of leaves is a typical character of ?

• (A) A. gymnosperms
• (B) B. ferns
• (C) C. pteridophytes in general
• (D) D. orchids

7 >>Q47. All fungi are always ?

• (A) A. parasites
• (B) B. autotrophs
• (C) C. heterotrophs
• (D) D. saprophytes

8 >>Q48. Why blue-green algae are called cyano bacteria? ?

• (A) A. because they are prokaryotic
• (B) B. because they live in waterly mediun
• (C) C. because they have blue colour
• (D) D. because they are unicellular organisms

9 >>Q49. The gymnosperms resemble angiosperms in having ?

• (A) A. ciliated sperms
• (B) B. presence of archegonia
• (C) C. presence of ovule
• (D) D. presence of monoxylic wood

10 >>Q50. The disease caused by the fungus colletotrichum falcatum is known as ?

• (A) A. downy mildew
• (B) B. leaf curl
• (C) C. red rot
• (D) D. blight disease

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11 >>Q51. Dendrochronology is the study of ?

• (A) A. height of a tree
• (B) B. diameter of a tree
• (C) C. age of a tree with the help of annual rings
• (D) D. countin the number of branches

12 >>Q52. Clove is obtained from which of the plants parts given below? ?

• (A) A. stem
• (B) B. flower buds
• (C) C. leaves
• (D) D. roof

13 >>Q53. In Botany, the Latin names are used because ?

• (A) A. Latin is a simple language
• (B) B. In whole world there would be only one name for one plant
• (C) C. it is easy to write
• (D) D. most of the names in other languages are not correct

14 >>Q54. Which of the algae given below grows sewage ponds? ?

• (A) A. chlorella
• (B) B. volvox
• (C) C. gelidium
• (D) D. ulua

15 >>Q55. Which of the plant groups mentioned below are popularly known as amphibious of plant kingdom? ?

• (A) A. bacteria
• (B) B. fungi
• (C) C. algae
• (D) D. bryophytes

16 >>Q56. DNA double helical structure was described for the first time by ?

• (A) A. Beadle and Tautum
• (B) B. Mclntosch
• (C) C. Hargobind Khorana
• (D) D. Watson and Crick

17 >>Q57. Catalytically active enzyme is called ?

• (A) A. Holoenzyme
• (B) B. Coenzyme
• (C) C. Apoenzyme
• (D) D. Ribozyme

18 >>Q58. Water droplets at the tip of the leaf are due to ?

• (A) A. Cuticular transpiration
• (B) B. Lenticular transpiration
• (C) C. Stomatal transpiration
• (D) D. Guttation

19 >>Q59. The pulp of the pear fruil is hard, because of the presence of ?

• (A) A. sclereids
• (B) B. vessels
• (C) C. tracheids
• (D) D. fibres

20 >>Q60. The age of a tree can be determined by ?

• (A) A. measuring the height
• (B) B. masuring its girth
• (C) C. counting the annual growth rings
• (D) D. measuring its diameter