Available Answers

1. 1.

   Write true or false.  Correct the false statements.

   1. Meristematic tissues responsible for lateral growth are called cambium.
   2. A permanent tissue is a group of cells that are capable of active cell division.
   3. Collenchyma tissue provides structural support to growing stems and leaves.
   4. Phloem parenchyma is the only living component of xylem.
   5. Xylem and phloem together are called the vascular bundle.
2. 2.

   Tick the most appropriate answer.

   1. Meristematic tissues have
      1. actively dividing cells.
      2. dead cells.
      3. cells that divide for a short period.
      4. cells that do not divide at all.
   2. Which of the following is not a characteristic tissues?
      1. Cells are small in size.
      2. Vacuoles are mostly present.
      3. Cell wall is thin.
      4. Cells actively divide to form new cells.
   3. This causes increase in the length of the plant.
      1. protective tissue
      2. lateral meristematic tissue
      3. apical meristematic tissue
      4. complex permanent tissue
   4. Which of the following is a protective tissue?
      1. cork
      2. chlorenchyma
      3. phloem
      4. xylem
   5. Which of the following cells have lignin?
      1. parenchyma
      2. chlorenchyma
      3. collenchyma
      4. sclerenchyma
   6. Xylem consists of 
      1. vessels, collenchyma and xylem fibres.
      2. tracheids, xylem fibres and xylem parenchyma.
      3. sieve cells, xylem fibres and xylem parenchyma.
      4. vessels, tracheids, fibres and xylem parenchyma.
   7. Which of the following tissues are made up of dead cells?
      1. collenchyma
      2. phloem
      3. parenchyma
      4. xylem
   8. Phloem consists of 
      1. vessels, collenchyma and phloem fibres.
      2. tracheids, phloem fibres and phloem parenchyma.
      3. sieve cells, phloem fibres and phloem parenchyma.
      4. vessels, sieve tubes, xylem fibres and phloem parenchyma.
   9. These are elongated cells with minute pores.
      1. phloem parenchyma
      2. sieve cells
      3. phloem fibres
      4. companion cells
   10. Vascular bundle consists of 
       1. parenchyma and sclerenchyma.
       2. collenchyma and xylem.
       3. phloem and vessels.
       4. xylem and phloem.
3. 3.

   Fill in the blanks.

   1. A group of actively dividing cells forms the _________________ tissue.
   2. _________________ meristematic tissue increases the length of the plants.
   3. _________________ meristematic tissue increases the thickness of roots and stem.
   4. Simple permanent tissue provides _________________ and _________________.
   5. Complex permanent tissue transports _________________ and _________________.
   6. The outer walls of the epidermis are usually thick and covered with _________________.
   7. In leaves, the epidermis has special cells called _________________.
   8. The fibres of jute and husk of coconut is made up of _________________ tissue.
   9. A _________________ vessel is not one cell but a series of cells.
   10. _________________ is located on the outer side of the vascular bundle.
4. 4.

   Define Meristematic tissue.

5. 5.

   Define the term 'Permanent tissue'.

6. 6.

   Define the term 'Protective tissue'.