10-28-2009- Plant- Exam 2 REVIEW

10-28-2009- Plant- Exam 2 REVIEW - Exam 2 Review...

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Exam 2 Review- Plants (Kitajima) BSC 2011 October 28, 2009 Evolution of Plants Plants descended from algae and share_______________________, _______________________ as energy storage, _______________________ composed of mainly cellulose, similar __________________________, and similar ____________________________. Differences between plants and animal cells: 1
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Why did plants evolve to grow taller? Monocots vs. Eudicots (two types of angiosperms): Monocots Eudicots Cotyledon Veins Vascular Tissue Roots Pollen Grain Multiples of Floral Organs Plant Anatomy Three Basic Plant Organs: 1. Leaves- Purpose: 2. Stems- Purpose: 3. Roots- Purpose: Two Types: (1) (2) Three Basic Plant Tissues: 1. Dermal Tissue- Purpose: Example: 2. Ground Tissue- Purpose: Example: 3. Vascular Tissue- Purpose: Example: Leaf Anatomy: (cross-section of a leaf) 2
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Stem Anatomy: Stem Tip: Stem “layers”: 3
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Root Anatomy: Root Tip: Cross Section of Eudicot Root: 4
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Plant Growth Primary Growth in Plants: - Growth in _______________________. - Occurs in the ________________________ a nd ________________________ at points of concentrated undifferentiated m eriste m atic cells called _____________________________. - In roots, it is protected by the __________________________. - In ste ms, it is protected by __________________________________. - ___________________________________ can start branches. - After cell division occurs, cell ________________________________, and cell _______________________ m ust occur. Secondary Growth in Plants - Growth in ________________________. - In both _________________________ and _________________________. - Vascular Cambiu m: o Secondary ______________________________ for water transport (more co m monly known as ________________) o Secondary ____________________________ for sug ar transport (more co m monly known as ____________________) o _____________________ for radial transport - Cork Cambiu m: o Composed of ________________________ o More com monly known a s _______________________ o Primary purpose is ___________________________. Growth Signals - Relies on signal reception and transduction - The plan e of ________________________________, controlled by ____________________, affects plant form. - _____________________________________ controlled by the loosening of primary cell walls (because once the s econdary cell walls the cells can no longer ______________ or _____________________) - Cell elongation is controlled by ________________________ which restrict cell elongation to a single direction. - The develop m ent of sp ecific structures, called _____________________________, is d et er mined by positional inform ation. Such as: o Polarity - 6
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Plant Transport Water Potential— - Definition: - Water moves from a ______________ water potential to a _____________ water potential. -
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This note was uploaded on 03/30/2010 for the course BSC BSC2011 taught by Professor Evans during the Spring '10 term at École Normale Supérieure.

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10-28-2009- Plant- Exam 2 REVIEW - Exam 2 Review...

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