Complex Permanent Tissue

Q. Which one among the following is correct?

1. Tracheids are unicellular with a wide lumen
2. Vessels are multicellular with a wide lumen
3. Tracheids are multicellular with narrow lumen
4. Vessels are unicellular with narrow lumen

Q. Xylem and phloem belong to the group of

1. Simple tissues
2. Specialised tissues
3. Complex tissues
4. Laticiferous tissues

Q. State whether the following are true or false.​

When parenchyma contains chlorophyll, it is called as chlorenchyma. ​

1. True
2. False

Q. State whether the following are true or false.​

Collenchyma cells have intercellular spaces. ​

Q. Xylem and phloem belong to the group of

1. Complex tissues
2. Simple tissues
3. Specialised tissues
4. Laticiferous tissues

Q. What is the difference between lenticels and stomata?

Q. Name the conducting tissue is plants which is made of living cells.

Q. Which of the following statements is correct$?$

1. Stems are usually unbranched in both Cycas and Cedrus.
2. Horsetails are gymnosperms.
3. Selaginella is heterosporous, while Salvinia is homosporous.
4. Ovules are not enclosed by the ovary wall in gymnosperms.

Q. Give the role of the following:
(b) Chlorenchyma.

Q. Conductivity part of phloem according to Haberlandt (1914) is

1. Leptom
2. Hadrom
3. Bark
4. Sterom

Q. Death of protoplasm is a prerequisite for a vital function like

1. transport of sap
2. transport of food
3. absorption of water
4. gaseous exchange

Q. What is xylem tissue? Name the two kinds of cells in xylem tissue. State whether these cells are living or dead.

Q. The arrangement of vascular tissue in hadrocentric vascular bundle is

1. Concentric.
2. Radial.
3. Collateral.
4. Bicollateral.