Auxins are group of a plant hormones, their name comes from the greek 'to grow'. They play an essential role in coordination of many growth and behavioral processes in the plant life cycle.
Auxins cause different parts of the plant in different directions. This is known as tropisms:
Auxin is found on the __________ side of the shoot. The auxin __________ the shoot cells to elongate
Auxin is found on the __________ side of the root. The auxin __________ the root cells elongating
By understanding how plants grow, we are able to influence their growth using their own hormones: