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Bio EOC Category #4

Plant Systems

TermDefinition
Xylem Vascular tissue that carries water upwards from the roots; becomes tree rings
Phloem Vascular tissue responsible for the transport of nutrients and the carbohydrates produced by photosynthesis; transports up and down plant
Vascular Consisting of tissue that can transport materials with the use of vessels or xylem and phloem
Nonvascular The lack of tissue to transport materials within a system
Stomate/Stomata Opening in certain plant cells needed for gas exchange
Guard cells Curved cells that surround a stomate, becoming larger or smaller according to the pressure within the cells
Roots Part of a plant that attaches it to the ground or to a support, carrying water and nourishment to the rest of the plant
Leaves Organ of a plant responsible for photosynthesis
Shoot system System found above ground and includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any)
Stems Main body or stalk of a plant or shrub, typically rising above ground
Vascular system System consists of xylem and phloem responsible for transport
Root system System found below ground and includes many organs to perform the function of absorbing nutrients and water.
Flowers Holds the male and female reproductive organs of angiosperms
Fruit Provides the covering for seeds and can be fleshy like an apple or hard like a nut
Pistil Female reproductive structure composed of stigma, style, and ovary; also known as carpel
Stamen Male reproductive structure composed of the anther and the filament
Pollen Male sex cell, plant sperm
Pollination Act of transferring pollen grains from the male anther of a flower to the female stigma
Seeds Embryonic plant enclosed in a protective outer covering
Petal Leafy structures that comprise a flower; usually used to attract a pollinator
Style Connects the ovary and the stigma and is where the pollen tubes grows
Ovule Female reproductive cell that will become the seed once fertilized
Stigma Place where pollen germinates after the pollen lands
Pollinator Anything that moves polle into the ovary of the same plant or another plant of the same kind
Phototropism Growth of plants toward a light source
Geotropism/Gravitropism Growth of plants in response to gravity
Thigmotropism Growth of plants in response to touch
Tropism The response of an organism, especially a plant, to an external stimulus by growth in certain direction
Hydrotropism Response of plants to water
Auxin Plant hormone that is made in the tips of plant cells; they determine how long a cell will grow
Created by: tneal1