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

1. A-i, B-iii, C-v, D-ii, E-iv
2. A-iii, B-i, C-ii, D-v, E-iv
3. A-ii, B-iv, C-v, D-i, E-iii
4. 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 _____________

. Permanent plant tissue having all cells similar in structure and function are called

Permanent plant tissue having many different type of cells are called

Complex tissue in plants have