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44 Cards in this Set
- Front
- Back
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Angiosperms
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flowering plants that form a protected seed inside an ovary
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flowers are structures specialized for
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reproduction
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_____is a mature ovary
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A fruit
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as seed develop from ovules after fertilization the wall of the ovary is thickened to form -------
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fruit
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fruits protect _______and aid in their dispersal
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dormant seeds
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Stages of plants 3 major (DNA)
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haploid, diploid, triploid
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Mitotic division of the diploid zygote produces one multi-cellular body called_________
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a sporophyte
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Meiosis in a mature sporophyte produces
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spores
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Mitotic division of a plant spore produces a new multi-cellular
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Gametophyte
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gametophytes produce ____
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gametes
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Agriculture is based almost entirely on
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angiosperms
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plants diversity is a _______ resource
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nonrenewable
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Plants have 3 basic organs called
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Roots, shoots, leaves
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continuous throughout the whole plant and is involved in the transport of materials between roots and shoots
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vascular system
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conveys H2O and dissolved minerals upward from the roots into the shoots
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xylem
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transports food made in mature leaves to the roots and to non-photosynthetic portions of the shoot system
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phloem
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Xylem is made of which are
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tracheids and vessel elements
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xylem cells are ___ and _ at functional maturity
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elongated cells that are dead at maturity
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Tracheids are
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tapered
H₂O moves from cell to cell have secondary walls with lignin |
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Vessel elements
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(pipes)
Aligned end to end Perforated ends |
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Phloem is made of ____ that form -
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sieve-tube members
chains of cells to move sucrose, organic compounds and some mineral ions. |
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Sieve tube members are _____ at functional maturity though they lack ----
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alive at
nucleuses, vacuoles and ribosomes |
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sieve tube member have ____ that provide nutrients
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companion cells
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Ground tissue is divided into ____ internal, and _______, external, to the vascular tissue
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pith,
cortex |
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also functions for photosynthesis
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Ground tissue
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generate cells for new organs throughout the lifetime of a plant
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meristem
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most plants demonstrate ________ because it has perpetually embryonic tissue called ______ in regions of growth.
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indeterminate growth
meristems |
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Primary Growth
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Apical meristem extend roots and shoots by
giving rise to a primary pland body |
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covers the root tip, secretes lubricant that
allow for better penetration of the soil |
root cap
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cell division takes place as new cells are
formed |
zone of cell division
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in roots cells divid more slowly in the
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quiescent center
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primary meristems (3)
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protostem
pro cambium ground meristems |
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the cells grow longer causing the roots to increase in depth
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zone of elongation
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cells become functionally mature
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zone of maturation
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secondary meristems
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lateral meristems add girth by producing secondary vascular tissues
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The_____ acts as a meristem for
production of secondary xylem accumulates making wood |
vascular cambium
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Wood consist mainly of
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trachids, vessel element fiber
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These dead cells have thick lignified walls that give wood its hardness and strength
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xylem trachids
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The _____________acts as a meristem for tough thick covering (bark) for stem and roots that replaces the epidermis
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cork cambium
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bark refers to
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external to the vasuclar cambium including
scondary phloem, cork cambium, and cork. |
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Apical meristem of stem
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Protoderm
Procambium Ground Meristem |
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Primary tissues
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epidermal
vascular ground |
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Lateral Meristem
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Vascular Cambium
Cork Cambium |
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Secondary tissues
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Secondary Phloem
Secondary Xylem Cork |
