All the following regarding sclerenchyma tissue in plants are correct except:
1. Cells have thick lignified walls
2. Cells are usually dead and without protoplasts
3. It provides mechanical support to plant organs
4. It can assimilate food when it contains chloroplasts

The vascular bundles in a dicot stem are:
1. conjoint, open with endarch protoxylem
2. conjoint, closed with endarch protoxylem
3. conjoint, open with exarch protoxylem
4. conjoint, closed with exarch protoxylem

What would be true for A and B shown in the given diagram?

Match the plants with the parts where sclereids are commonly found in them:

Codes

Complex tissues in a plant:
1. are composed of one type of cell performing same function
2. are composed of one type of cell performing different functions
3. are composed of more than one type of cells working together as a unit
4. are composed of more than one type of cells working independently of each other

Apart from conducting water and minerals, xylem in plants also:
1. Translocates the sucrose
2. Provides mechanical strength
3. Produces PGRs
4. Synthesizes food

Identify the incorrect statement regarding the anatomy of flowering plants:
1. Plants have cells as the basic unit.
2. Different organs in plants show differences in their internal structure.
3. Within angiosperms, dicots and monocots are anatomically different.
4. Adaptations to diverse environments are seen in external structures only.

Phloem in angiosperms is composed of all the following except:
1. Sieve cells
2. Companion cells
3. Phloem parenchyma
4. Phloem fibers

The nucleus of companion cells controls the functions of:
1. Sieve cells
2. Sieve tubes
3. Albuminous cells
4. Phloem parenchyma

In the given diagram of phloem in an angiosperm, the structure not seen in most of the monocots is indicated by the letter:  

1. A 2. B 3. C 4. D