Name the following:
(a) A group of similar or dissimilar cells having a common origin and a common function :
Ans: Tissue
(b)A group of thin walled,isodiametric ,living cells having intercellular spaces.
Ans: Parenchyma
(b) Thick walled isodiametric dead cells having narrow lumen with small pores on the lateral walles
Ans: Sclerenchma
(d)A collection of different types of cells having a common function.
Ans: Complex tissues
(e) An angiosperm lacking vessels
Ans: Degenaria
(f)A gymnosperm which has vessels.
Gnetum
(g) The first formed xylem and the latter formed xylem.
Ans: Protoxylem and metaxylem.
(h) Protoxylem formed toward the periphery and metaxylem toward the center.
Ans: Exarch and Endarch.
(i)Thin walled living cells associated with the sieve tubes.
Ans:-Companion cells.
No comments:
Post a Comment