Which of the following is/are the complex tissue?
a) meristimatic
b) xylem
c) phloem
d) both b and c
Explanation: complex tissues are made up of more than one type of cells
Phloem is made of………cells.
a) parenchyma, fibers
b) sieve tubes
c) companion cells
d) all of these
Which of the following cells have pores which help in the translocation of food in phloem?
a) parenchyma, fibers
b) sieve tubes
c) companion cells
d) tracheids
A thin, living cell associated with almost every sieve tube is called……
a) parenchyma
b) vessel element
c) companion cell
d) fiber
In which of the following plants, companion cells are absent?
a) gymnosperms
b) ferns
c) angiosperms
d) both a and b
The unit of water potential is…….
a) Kg
b) atm
c) KPa
d) N
Explanation: Water potential is the potential energy of water per unit volume relative to pure water in reference conditions.
