Anatomy of flowering plants 1 Set 14

I. Made up of elongated, tapering cylindrical cells which have dense cytoplasm and nucleus
II. Cell wall composed of cellulose
III. Stores food materials
The above mentioned characters belong to which attribute of phloem?

Kranz anatomy is found in

The phloem fibres of which of the following plant is/are used commercially?
I. Jute       II. Flax     III. Hemp
Select the correct option

In any dicot root having secondary growth, the cork is the

The cells without nuclei are present in

On the basis of variation in form, structure, origin and development, sclerenchyma may be

Which statements are correct about guard cells?
I. They are modified ground tissue
II. They are chlorophyllous
III. Its outer wall is thin and inner wall is highly thickened
IV. They regulate stomatal movement for transpiration and gaseous exchange

Fibres associated with phloem are………fibres.

Consider the following statements.
I. In a dicot root, the vascular bundles are collateral and endarch.
II. The innermost layer of cortex in a dicot root is endodermis. 
III . In a dicot root, the phloem masses are separated from the xylem by parenchymatous cells that are known as the conjunctive tissue.

First formed primary xylem elements are called ...A… . Later formed primary xylem elements are called …B… .
A and B in the above statement refers to