31. The term leptorn, for the conductive elements of phloem, was used by
32. Stem cutting is done generally to grow
33. In case of Physarales, the cleavage furrows in the protoplasm of young sporangium are filled with fungus cellulose material in the form of an intricate network of fine, hyaline threads called the
34. In which of the following kind of xylem vessels, the secondary wall thickenings are transverse interconnected bars?
35. Structural advantages of tracheae and tracheids include
36. Silkworm grows on
37. Match List-I with List-II and select the correct answer:
List-I
List-II
a. Promeristem
1. Based on position
b. Apical meristem
2. Based on function
c. File meristem
3. Based on plane of divisions
d. Ground meristem
4. Based on origin
| List-I | List-II |
| a. Promeristem | 1. Based on position |
| b. Apical meristem | 2. Based on function |
| c. File meristem | 3. Based on plane of divisions |
| d. Ground meristem | 4. Based on origin |
38. Consider the following statements and choose the correct answer:
1. Sieve cells are present in all groups of plants
2. Transverse position of end walls of sieve tubes is a primitive feature whereas their oblique or inclined position is an advanced condition
3. Restriction of sieve areas on the end wall is a primitive condition whereas their presence on end wall as well as radial wall is an advanced condition
4. The sieve plates with larger sieve pores are advanced
1. Sieve cells are present in all groups of plants
2. Transverse position of end walls of sieve tubes is a primitive feature whereas their oblique or inclined position is an advanced condition
3. Restriction of sieve areas on the end wall is a primitive condition whereas their presence on end wall as well as radial wall is an advanced condition
4. The sieve plates with larger sieve pores are advanced
39. Groups of secondary phloem present scattered among the secondary xylem are known as
40. The secondary permanent tissues, such as secondary xylem, secondary phloem and cork, are always derived from
Read More Section(Plant Kindom)
Each Section contains maximum 100 MCQs question on Plant Kindom. To get more questions visit other sections.