During secondary growth in the stem:-

1. The amount of secondary xylem produced is more than the secondary phloem as the
cambium is generally more active on the inner side than the outer.

2. the amount of secondary phloem produced is more than the secondary xylem as the cambium is generally more active on the inner side than the outer.

3. the amount of secondary xylem produced is more than the secondary phloem as the cambium is generally more active on the outer side than the inner.

4. the amount of secondary phloem produced is more than the secondary xylem as the cambium is generally more active on the outer side than the inner.

The vascular cambium normal gives rise to.

(1) phelloderm                                         

(2) primary phloem

(3) secondary xylem                                 

(4) periderm

Interfascicular cambium develops from the cells of ?

1. medullary rays

2. xylem parenchyma

3. endodermis

4. pericycle

Grafting is successful in dicots but not in monocots because the dicots have

(1) Vascular bundles arranged in a ring

(2) Cambium for secondary growth

(3) Vessels with elements arranged end to end

(4) Cork cambium

In Dicots, secondary xylem and phloem tissues are formed because of

1. open vascular bundle

2. closed vascular bundle

3. Both 1. and 2.

4. semi closed vascular bundle

The tissue involved in secondary growth are

In dicot stem the cells of cambium present between primary xylem and primary phloem is the ___________.

When cambial ring becomes active, the cells cut off toward pith mature into

When cambial rings become active and the cells cut off towards periphery mature into

The cambium is generally more active on the _________ side than the _________ side.