Identify the wrong statement in context of heartwood.
(1) Organic compounds are deposited in it
(2) it is highly durable
(3) It conducts water and minerals efficiently
(4) It comprises dead elements with highly lignified walls
The vascular cambium normal gives rise to.
(1) phelloderm
(2) primary phloem
(3) secondary xylem
(4) periderm
Which one of the following comprises only simple tissue?
1. Parenchyma, Collenchyma and Sclerenchyma
2. Parenchyma, Xylem and Collenchyma
3. Parenchyma, Xylem and Sclerenchyma
4. Parenchyma, Xylem and Phloem
Match the following
A. | Meristem | i. | Photosynthesis, storage |
B. | Parenchyma | ii. | mechanical support |
C. | Collenchyma | iii. | Actively dividing cells |
D. | Sclerenchyma | iv. | stomata |
E. | Epidermal tissue | v. | Sclereids |
A. A-i, B-iii, C-v, D-ii, E-iv
B. A-iii, B-i, C-ii, D-v, E-iv
C. A-ii, B-iv, C-v, D-i, E-iii
D. A-v, B-iv, C-iii, D-ii, E-i
What is the destiny of primary xylem in a dicot root showing extensive secondary growth?
1. It is retained in the centre of the axis
2 It gets crushed
3. May or may not get crushed
4. It gets surrounded by primary phloem
Anatomically fairly old root is distinguished from dicotyledonous stem by
1. Position of Protoxylem
2. Absence of secondary xylem
3. Absence of secondary phloem
4. Presence of cortex
During the formation of leaves and elongation of stem, some cells left behind from shoot apical meristem constitute _____________
1. Axillary bud
2. Lateral bud
3. Apical bud
4. Protoderm
. Permanent plant tissue having all cells similar in structure and function are called
(1) Simple tissue
(2) Complex tissue
(3) Meristematic tissue
(4) Fascicular tissue
Permanent plant tissue having many different type of cells are called
1. Apical differentiating tissue
2. Simple apical tissue
3. Complex tissue
4. Meristematic tissue
Complex tissue in plants have
1. Xylem
2. Sclerenchyma
3. Phloem
4. Both 1 and 3