Growth in Plants

Meristem tissue

cells that can undergo repeated cell division and cytokinesis

What can the actively dividing cells of meristem tissue be used for?

To form new plant tissue (i.e. stem, leaf, root)

What are the three undifferentiated embryonic meristem cells?

protoderm, procambium, and ground meristem

Protoderm

produces epidermis

Procambium

produces vascular tissue (xylem and phloem)

Ground meristem

produces general plant cells (pith, cortex, mesophyll)

Mature plants have ___ growth

indeterminate growth (can keep growing)

How is meristem tissue similar to stem cells?

Both can keep dividing indefinitely and turn into any kind of cell depending on gene expression

What are the two types of adult plant meristems?

Apical and lateral meristem

Apical meristem

growth tissue at the tip of a shoot/stem or root that gives rise to new leaves, shoots, roots

Lateral meristem

growth tissue that makes a stem or root wider (thicker around)

A

Leaf primordia (primordial leaves)

B

Apical meristem

C

Procambium

D

Axillary bud

E

Protoderm

F

Ground meristem