- 1(current)
Q. No.| 1. | cells that mature into secondary xylem towards pith and into secondary phloem towards periphery |
| 2. | cells that mature into secondary xylem towards periphery and into secondary phloem towards pith |
| 3. | cells that mature into primary xylem towards pith and into primary phloem towards periphery |
| 4. | cells that mature into primary xylem towards periphery and into primary phloem towards pith |
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In the given diagram showing the anatomy of a tree trunk, what are A, B, C and D respectively?
1. Secondary xylem, Secondary phloem, Periderm, Bark
2. Secondary phloem, Secondary xylem, Periderm, Bark
3. Secondary xylem, Secondary phloem, Phellem, Periderm
4. Secondary phloem, Secondary xylem, Phellem, Periderm
| 1. pith meristem | 2. cork cambium |
| 3. cortex cambium | 4. vascular cambium |
| 1. | outer cells differentiate into cork or phelloderm and inner cells differentiate into secondary cortex or phellem |
| 2. | inner cells differentiate into cork or phelloderm and outer cells differentiate into secondary cortex or phellem |
| 3. | outer cells differentiate into cork or phellem and inner cells differentiate into secondary cortex or phelloderm |
| 4. | inner cells differentiate into cork or phellem and outer cells differentiate into secondary cortex or phelloderm |
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1. Phellem
2. Phellogen
3. Phelloderm
4. Periderm
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1. Cork
2. Secondary phloem
3. Secondary cortex
4. Vascular cambium
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1. Bulliform cells
2. Hydathodes
3. Lenticels
4. Albuminous cells
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1. Cambial ring formed is wavy in the beginning and later becomes circular
2. Cambial ring is completely secondary in origin
3. Periderm originates from the cortex [extra-stelar]
4. Lenticels on periderm are not very prominent
- 1(current)
Q. No.
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