Download Lesson 19 – Plant Growth

Plant Growth
SNC2D
Ms. Kueh
Name: _______________________
Meristematic Cells
Animals have unspecialized cells called ___________________ that can differentiate into all the
cells in our bodies. Plants have a similar type of cell called ___________________ cells. These
cells have the ability to _____________________ into specialized tissues.
Meristematic cells are the only cells in plants that will ____________________________
throughout the life of the plant.
These cells are only located in a few spots in the plant
1.
2.
Apical Meristems
Apical meristem tissue is located at the ____________________________. This type of tissue
allows the plant to grow _____________________
Apical meristem cells go through a 3 step process:
1.
2.
3.
As these cells elongate and mature the root is ____________ further into the ground or the
shoot grows further from the stem. As the cells elongate they will __________________ into
different types of cells in dermal, ground or vascular tissue.
Lateral Meristems
 located in the _____________________
 allows the plant to grow _____________
 _____________________of lateral meristem tissue run the
length of roots and shoots
o The outer ring produces new epidermal tissue called
__________________
o The inner ring produces new _________________
towards the inside of the stem and __________________ towards the outside.
The cork and phloem form the ____________ of trees and the xylem produces the __________
we use to tell how old a tree is.
Plant Reproduction
Because of meristematic tissue, some plants have developed a method of reproduction that
does not require _____________________________.
 Vegetative Reproduction
o A plant can produce genetically identical ________________ by sending out new
shoots or roots from meristematic tissue, that will grow new roots and an entire
new plant

Ex. ____________________________
o If you cut a stem, root or leaf of certain plants
and place it in water, it can eventually grow
new roots and produce a new plant with
identical genetics
Tissue Culture Propogation - Read Textbook pg. 146-147
How do people clone plants using Tissue Culture Propogation? (In your explanation include a
definition of a callus.)
Homework: pg. 147 # 1-7