Plant Growth
- Created by: emily3
- Created on: 21-03-14 12:40
View mindmap
- Plant Growth
- Growth
- irrevesible increase in the dry mass of an oranism
- usually increase in cell number
- uptake of chemicals
- synthesis of new structures
- Meristems
- Apical
- Primary growth
- Root & Shoot
- new cell formed by mitosis
- becomes elongated, vacuolated, differentiated
- Lateral
- secondary growth
- produced by cambium
- Apical
- cambium
- produced by cambium
- Produces a ring annually
- secondary phloem
- xylem inside
- phloem outside
- inactive in winter
- most active in spring
- clear rings
- tree age can be calculated from number of rings
- yearly conditions can be guessed
- thick ring
- mild temperature
- plenty rainfall
- plenty sunshine
- thin ring
- cold weather
- drought
- insect infestation
- ie caterpillars
- thick ring
- Growth
- Large xylem vessels
- most active in spring
- able to transport large quantities of water and nutrients
- for leaf growth and expansion
Comments
No comments have yet been made