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

Secondary growth is unlikely to be seen in:
1. Cycas
2. Sunflower plant
3. Wheat plant
4. Mango tree

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

The intrafascicular cambium

1. is a simple permanent tissue

2. is a meristematic tissue

3. is a complex permanent tissue

4. is secondary meristem

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

In dicot stem, at some places the cambium forms a narrow band of parenchyma which passes through the secondary xylem and secondary phloem in radial direction these are called _________.

The cells which are formed from vascular cambium towards the centre are____________and towards the periphery are _________________

(1)secondary xylem, secondary phloem

(2)bast, wood

(3)wood, bast

(4)Both A and C

The secondary xylem is produced more because

(1)cambium is more active towards the inner side

(2)cambium is more active towards the outer side

(3)xylem is more important than phloem

(4)All of the above

Primary xylem remains less or more intact towards the __________

(1) around the centre

(2) around the periphery

(3)outer to the pith

(4)Both A and C