Column-I | Column-II | ||
A. | Spring wood or wood | I. | Lighter in colour early |
B. | Autumn wood or late wood | II. | High density |
III. | Low density | ||
IV. | Darker in colour | ||
V. | Larger number of xylem elements | ||
VI. | Vessels with wider cavity | ||
VII. | Lesser number of xylem elements | ||
VIII. | Vessels with small cavity |
A) A - II; IV; VII; VIII; B - I; III; V; VI
B) A - I; II; VII; VIII; B - III; IV; V; VI
C) A - I; III; V; VI; B - II; IV; VII; VIII
D) A - I; III; VII; VIII; B - II; IV; V; VI
Correct Answer: C
Solution :
[c] Spring wood is the part of an annual ring of wood, characterised by large, thin-walled cells, formed during Ae first part of the growing season. It is lighter in colour with low density. It produces a larger number of xylem elements having vessels with wider cavities. Autumn wood or late wood is the wood element formed during winter when cambial activity is more. It is darker in colour with high density. Wood elements are lesser in amount and have narrow lumen.You need to login to perform this action.
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