Science Ch 2 - Plants: Vocabulary Flashcards
What is an ovule?
An ovule is the future seed of a plant.
What is a sepal?
The sepal is any of the leaf-like structures that surround the base of a flower’s petals.
What is the receptacle?
The receptacle is the enlarged upper portion of a flower’s stem.
What do you call the ripened ovary of a flower?
the fruit
What do we call the tiny shoot in an embryo that will become the stem and leaves?
the plumule
What do we call the small root in the embryo that will develop into the root system?
the radicle
What do we call the structures in the embryo that are designed for food absorption and storage?
the cotyledon
What do we call the portion of the seed that stores food for the embryo?
the endosperm
What do you call a plant whose seeds have only one cotyledon?
a monocot
What do you call a plant whose seeds have two cotyledons?
a dicot
What do you call a young plant that no longer depends on the cotyledons?
a seedling
What kind of plant develops from a seed, produces new seeds, and dies in a single growing season?
an annual
What kind of plant lives through two growing seasons to complete its lifecycle?
a biennial
What kind of plant lives from year to year and blooms each growing season?
a perennial
What is a plant that reproduces by seeds formed in flowers?
an angiosperm
What is a spike?
a long flower arrangement with clusters attached directly to the stem.
What is an umbel?
an arrangement of flowers that have stems of nearly equal length emerging from a common point on the main stem.
What is an underground food-storage structure made of layers of thick, fleshy leaves surrounding a very short stem?
a bulb
What is a thick underground stem that grows vertically called?
a corm
What is a thick underground stem that grows horizontally called?
a rhizome
What is a node?
the place where a leaf attaches to a stem
What is a blade?
the broad, flat portion of a leaf
What is a sheath?
the part of a grass leaf that attaches the culm to the blade
What do you call a creeping stem that grows along the ground?
a stolon
What is the name for a flower structure that is similar to a spike except that the flowers grow on small stems that branch off the main stem?
a raceme
What is the stalk that attaches a leaf blade to a node called?
a petiole
Which word refers to a leaf that has no petioles but instead attaches directly to the stem by a sheath?
sessile
What is the edge of a leaf called?
the margin
What is the vein pattern of a leaf called?
the venation
