Answer 1

Xylem

1. Transports water and minerals absorbed by the roots of other plant parts.
2. Consists mainly of dead cells.
3. Conduction is unidirectional i.e. only upwards from the roots. 

Phloem

1. Conducts food manufactured in the leaves to other plant parts.
2. Consists mainly of living cells.
3. Bidirectional conduction i.e. both upwards and downwards from the leaves.