Primary Plant Growth Flashcards
What growth occurs in plants during primary growth?
Shoots grow taller and roots grow deeper
Where to plants grow from (top or bottom)
Top
What growth occurs in plants during secondary growth?
Girth- lateral growth
What are meristems?
Plant stem cells, differentiate production of cells
What shape is meristemic tissue?
Cylinder like
What plants only have primary growth?
Herbaceous plants
What plants have secondary growth?
Woody plants
Where is apical meristem located on a plant?
Tips of roots and shoots
What are the two types of secondary growth in plants?
Vascular cambium and cork cambium
Where do roots grow towards in primary growth?
Gravity
What are the three zones in a root? (bottom to top)
- Zone of cell division
- Zone of elongation
- Zone of differentiation
What occurs in each zone of a root?
- Cells are created
- Cells grow longer
- Cells are specialized
What is the function of the root cap?
Protect the root apical meristem
Where do shoots grow towards in primary growth?
Sunlight
What are the three zones in a shoot?
- Zone of differentiation
- Zone of elongation
- Zone of cell division
What zone allows for vertical growth in a plant?
Zone of elongation
Are younger cells near the leaf primordia or away from it?
Younger differentiated cells are closer to the leaf primordia
What is the leaf primordia?
Grow of cells that form new leaves
Why do we have to mow the lawn?
Grass have basal (bottom) meristem, whereas plants have apical meristem.
Have to cut low to the grown to stop growth of grass
