Tag: plant tissue system

Questions Related to plant tissue system

What is the correct sequence?

botany plant tissue system ground tissue system ground tissues tissue systems

  1. Xylem-Cambium-medulla

  2. Cortex-Endodermis-pericycle-xylem

  3. Cambium-xylem-cortex

  4. None of the above

Show answer
Correct Option: B
Explanation:

In the anatomy or internal structure of dicot stem, epidermis, followed by cortex, followed by endodermis, pericycle, phloem, xylem, medulla are present from outer to inner.

So, the correct option is 'cortex - endodermis - pericycle - xylem'.

Cork cambium is produced from 

botany plant tissue system ground tissue system ground tissues tissue systems

  1. Apical meristem

  2. Lateral meristem

  3. Intercalary meristem

  4. Ground tissue

Show answer
Correct Option: D
Explanation:

Cork cambium arises from outer most layer of the cortex which is the ground tissue. 

So, the correct answer is 'Ground tissue'

For a successful graft, the adhesion between stock and scion is a must. 

Which one of the following is the earliest event towards a good graft?

botany plant tissue system ground tissue system ground tissues tissue systems

  1. Production of plasmodesmata in the cells at the interface of stock and scion.

  2. Coordinated differentiation of vascular tissue between the stock and scion.

  3. Regeneration of cortex and epidermis over the union of stock and scion.

  4. Production of callus tissue between the cells of stock and scion.

Show answer
Correct Option: D
Explanation:

Grafting is a technique whereby tissues from one plant are placed or inserted into another in such a way that the vascular tissues of both the plants may join together. The plant which is selected for its roots is called as the stock and the one selected for its stems and leaves and flowers is called as the scion. For successful grafts, the events that should take place is the production of the callus tissue between the cells of the stock and scion. 

Thus, the correct answer is option D.