26. The plants which grow in swampy areas are called
1) Epiphytes 2) Mangrooves 3) Hydrophytes 4) Mesophytes
27. The following are not adventitious roots
1) Velamen roots 2) Brace roots 3) Prop roots 4) Nodular roots
28. The micro organism present in the modular roots
1) Many types of soil bacteria 2) Many species of Rhizobium
3) Only one species of Rhizobium 4) None
29. Stem is formed from
1) Plumule 2) Radicle 3) Embryo 4) Bud
30. Root may bear the following
1) nodes 2) leaves 3) flowers 4) None
31. Nodes are separated from each other by
1) inter nodes 2) leaves 3) flowers 4) branches
32. Assertion (A): Ginger is a stem.
Reason (R): It stores food.
1) A, R are correct. R explains A. 2) A, R are correct. R do not explains A.
3) A is correct. R is false. 4) A is false. R is correct.
33. Assertion (A): Zaminkand is a underground stem.
Reason (R): It bears nodes, buds and adventitious roots.
1) A, R are correct. R explains A. 2) A, R are correct. R do not explains A.
3) A is correct. R is false. 4) A is false. R is correct.
34. Assertion (A): Colocasia is an organ of perennation.
Reason (R): It is useful in vegetative reproduction.
1) A, R are correct. R explains A. 2) A, R are correct. R do not explains A.
3) A is correct. R is false. 4) A is false. R is correct.
35. Assertion (A): Potato is an organ of perennation.
Reason (R): It can tide over conditions unfavourable for growth.
1) A, R are correct. R explains A. 2) A, R are correct. R do not explains A.
3) A is correct. R is false. 4) A is false. R is correct.
36. Match the following.
I. Turmeric A. Eyes
II. Potato B. Corm
III. Onion C. Rhizome
IV. Zaminkand D. Bulb
I II III IV I II III IV
1) B D C A 2) D C B A
3) C A D B 4) C D A B
37. Potato bears the following distinct characters by which it can be differentiated
from others under ground stem modifications
A) Eyes B) Scale leaves
C) Absense of adventitious roots D) Presense of adventitious roots
E) storage of food
1) AC 2) ABCD 3) ACE 4) ABCDE
38. Fleshy scale leaves are present in
1) Rhizome 2) Bulb 3) Corm 4) Tuber
39. Adventitious roots are absent in
1) Tuber 2) Bulb 3) Rhizome 4) Corm
40. Stem do not stores food in
1) Rhizome 2) Bulb 3) Corm 4) None
41. Scape is present in
1) Bulb 2) Tuber 3) Corm 4) Rhizome
42. The distinct characters of Bulb
1) Tunic 2) Scape
3) Fleshy scale leaves 4) All
43. Apical bud and axillary bud are side by side in
1) Tuber 2) Rhizome 3) Bulb 4) All
44. Food is stored in the following parts of bulb
1) Stem 2) Scale leaf 3) Branch 4) Root
45. One plant shows many under ground stems storing food in
1) Solanum tuberosum 2) Zingiber
3) Allium cepa 4) Amorphophallus
46. The tendril in cucurbita is the modification of
1) Petiole 2) leaf apex 3) stem 4) leaflet
47. Axillary bud is modified into tendril in
1) Watermelon 2) Pumpkin 3) Cucumber 4) All
48. All bud modifications are modifications of
1) leaf 2) stem 3) 1 & 2 3) None
49. Axillary bud and terminal bud are modified into tendrils respectively in
1) Pumpkin, Watermelon 2) Grape vine, Pumpkin
3) Cucumber, Grape vine 4) Pisum, Grape vine
50. Aerial stem modifications meant for photosynthesis
A) Tendrils B) Phylloclade
C) Thorns D) Cladode or Cladophyll
1) A B C D 2) B D 3) A B D 4) B C D
Answers: 26-2; 27-4; 28-3; 29-1; 30-4; 31-1; 32-2; 33-1; 34-2; 35-1; 36-3; 37-1; 38-2; 39-1; 40-2; 41-1; 42-4; 43-3; 44-2; 45-1; 46-3; 47-3; 48-2; 49-3; 50-2.
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