A) Root , stem , leaves, flower , fruit.

b)Root hairs are tiny outgrowth from the root which help in absorption of water .

c)Bud is immature shoot , it is present in the axile of leaf known as axillary bud.

d)Leaf apex is the tip of leaf. 
The parts of plant are-  bud,flower,leaves,fruits,stem,root .

The roots of a plant have very large num
ber of tiny hair on them called root hair. 

The small outgrowths on the stem of a plant are called buds . It is found on the top of the plant . It is of two types terminal bud and axillary buds

leaf apex is the tip of the leaf .