AP BIOLOGY

PLANTS

PLANT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is not a characteristics of permanent tissues?
A
Mature tissues that are undergoing differentiation
B
matured tissues which are already differentiated
C
Actively dividing to produce new cells for growth
D
categorised into epidermal tissue, ground tissue and vascular tissue
Explanation: 

Detailed explanation-1: -Complete answer: In xylem tissue, it is composed of four different kinds of cells, they are tracheids, xylem vessels, xylem fibers, and xylem parenchyma. Thus it is a complex tissue. The xylem parenchyma are living cells, thus it cannot be considered as permanent tissue.

Detailed explanation-2: -The characteristics of permanent tissue are as follows: Cells are fully differentiated. Cells loose the ability to divide. Cells take up permanent shape, size and specific roles.

Detailed explanation-3: -The correct answer is Xylem. Xylem is not a simple permanent tissue. xylem along with phloem is a complex permanent tissue. Complex tissue is made up of more than one cell.

Detailed explanation-4: -The cells produced by meristematic tissues grow and, on maturity, get differentiated to carry out specialised functions. These cells form permanent tissues as they do not divide further.

There is 1 question to complete.