Parts of Stems
Stem Structural Types
Growth Regions
Environment Stimuli
Random
100
This is the part of the stem marking the point of attachment to leaves, flowers, fruits, buds and other stems.
What is a Node?
100
This is a short underground stem surrounded by fleshy leaves.
What is a Bulb?
100
This is the tissue in most plants containing undifferentiated cells, found in zones of the plant where growth can take place.
What is a Apical Meristem?
100
This is the process of plants bending toward a source of light.
What is Phototropism?
100
This is a plant that lives for an indefinite period of years and blooms every year after the first.
What is a Perennial Plant?
200
This is another name for the bud scars left from the last terminal bud.
What is a Growth ring?
200
This is a horizontal underground stem.
What is a Rhizome?
200
This lengthening process is because of the cell division in the apical meristem.
What is Primary Growth?
200
Plants respond to light be transporting this hormone from one plant to another.
What is Auxin?
200
This is a young stem that is in the dormant winter stage.
What is a Twig?
300
This is the center-most tissue of a stem, including chambered, continuous, diaphragm, and hollow.
What is a Pith?
300
This is a short shoot on which flowers and fruits or leaves are born.
What is a Spur?
300
A meristem in vascular plants in which secondary growth occurs.
What is Lateral meristems?
300
This describes how plants respond to gravity.
What is Gravitropism?
300
This is a stem that is more than one year old, typically with lateral stems radiating form it.
What is a Branch?
400
This is a scar marking the former point of attachment of a leaf or petiole to the stem.
What is a Leaf Scar?
400
This is a thick storage stem, usually not upright.
What is a Tuber?
400
This is a lateral meristem that produces secondary xylem to the inside and secondary phloem to the outside.
What is Vascular Cambium?
400
This is a plant's response to touch.
What is Thigmotropism?
400
This is the rough areas on stems composed of loosely packed cells extending from the cortex through the ruptured epidermis. Serving as "breathing pores" for gas exchange.
What is a Lenticel?
500
These are the buds along side the axis of the stem; they were produced by the terminal bud during growth.
What is an Lateral bud?
500
This is a grass shoot produced from base of stem.
What is a Tiller?
500
This is a lateral ring of meristematic tissue found in woody plants, producing cork on the outside of the ring and parenchyma on the inside ring.
What is Cork Cambium?
500
This is when roots grow toward the directing of the pull of gravity.
What is positively gravitropic?
500
This is a semi-shrubby stem that turn woody in the lowest parts and remain alive over the winter when the higher parts die back.
What is a Suffrutescent Growth.