plant hormones Flashcards
1
Q
what suggests evidence of hormones
A
all plants would respond the same way to hormone
2
Q
explain why gibberellin is classed as a plant hormone (FEATURES OF HORMONES)
A
- it is a chemical messenger
- it is produced in one part of the plant and has effect on another
- it is long lasting
has widespread effect
affects tissues
3
Q
why is apical dominance and stem elongation useful for plants useful u
A
it allows them to better compete for light
as gibberelins cause longer stem so higher reach more light
lateral shoots reach out further at the bottom so that they are able to access light
light is needed for photosynthesis
4
Q
why may smaller stems be better
A
reduces waste
and prevents crops from being damaged by bad weather
