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BIOL 101 (6)
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Lecture 14

BIOL 101 Lecture 14: ch 33

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Department
Biology
Course
BIOL 101
Professor
Brokaw
Semester
Fall

Description
Plant structure, growth, and differentiation (Emphasis: the angiosperms) Review question: What stage of the life cycle is the primary angiosperm body? Sporophyte Plants cant move: Most plants have bodies that cant relocate Those bodies still must be capable of acquiring multiple resources Plant (sporophyte) body Root System: Generally underground Obtains water and dissolved minerals from soil for the plant Anchors the plant Composed of primarylateral roots Shoot system: Generally aerial Obtains sunlight Exchange gases (co2, oxygen, water vapor) More complicated than roots: A vertical stem that bears leaves Reproductive structures Leaves main organs of photosynthesis Reproductive structures flowers and fruits in flowering plants Body as tissue system: Integrated throughout the plant and body Roots and shoots Provides continuity from organ to organ Plant body has 3 tissue systems: Ground 3 tissues, 3 cells types Parenchyma tissues
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