Match each item in Column I with one in Column II and choose your answer from the codes given below:

Phloem components	Feature
A. Sieve tube elements	a. Commercial use as in jute, flax and hemp
B. Companion cells	b. Plasmodesmatal connections and storage function
C. Phloem parenchyma	c. Maintaining pressure gradient in sieve tubes
D. Phloem fibers	d. Perforated end walls

Codes

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	b	d	c	a
4.	d	c	b	a

The meristem which occurs between mature tissues in a plant body is known as:

Protophloem differs from metaphloem in having:
1. companion cells present
2. dead sieve tube elements
3. narrow sieve tubes
4. lignified phloem fibers

The incorrect statement regarding epidermal tissue system in angiosperms would be:

The meristem that helps grasses regenerate parts removed by the grazing herbivores is the:

All the following are true for trichomes except:

Permanent tissues in a plant body are formed following division of cells in:
1. Primary meristems only
2. Secondary meristems only
3. Both primary and secondary meristems
4. Neither primary nor secondary meristems

In the primary stems and roots, the type of cells usually present in cortex, pith and medullary rays is:

Mesophyll cells present in the ground tissue of leaves are:
1. chloroplasts lacking thin walled cells
2. chloroplasts containing thick walled cells
3. chloroplasts containing thin walled cells
4. chloroplasts lacking thick walled cells

Open vascular bundles:

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct