plant structure & function ch. 29.2, 29.3, 29.4, 30.2

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Plant Structure & Function Ch. 29.2, 29.3, 29.4, 30.2

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Plant Structure & Function Ch. 29.2, 29.3, 29.4, 30.2. Plant Vocab. Non-Vascular: lacking xylem and phloem Vascular: have xylem and phloem Gymnosperm: pine trees Angiosperm: flowering plants. Comparing Monocots & Dicots (Angiosperms). Root Functions (29.2). - PowerPoint PPT Presentation

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Page 1: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Plant Structure & FunctionCh. 29.2, 29.3, 29.4, 30.2

Page 2: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Plant Vocab

Non-Vascular: lacking xylem and phloem Vascular: have xylem and phloem

Gymnosperm: pine treesAngiosperm: flowering plants

Page 3: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Comparing Monocots & Dicots (Angiosperms)

Page 4: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Root Functions (29.2)

Major Functions: anchor plant to soil, absorb and transport water and nutrients, and store water and organic compounds.

Growth:1. Primary- lengthening and elongation of theroot.2. Secondary- widening of the root andexpansion of root structures.

Page 5: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Types of Roots1. Tap root: if the primary root becomes the longest root.

2. Fibrous roots: Numerous small roots develop and branch out.

3. Adventitious roots: specialized roots that grow from uncommon places of the plant.

Root hairs: increase surface area to increase its ability to absorb water & minerals from soil

Page 6: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Root Structures

Monocot Dicot

Page 7: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Stem Functions (29.3)Function: -transportation of water & nutrients

-storage of nutrients-support of leaves

Translocation refers to the movement of sugars through the plant in the phloem.

Pressure Flow Hypothesis explains how sugar flows in the phloem with the help of osmosis.

Transport of water and mineral nutrients occurs through the xylem.

Transpiration is the process in which plants lose water when obtaining carbon dioxide for photosynthesis.

The cohesion-tension theory explains on water flows against gravity from the roots up through the stem to the leaves.

Page 8: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Types of Stems

1. Stolons

2. Tubers

3. Fleshy

Page 9: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Stem Structures

Monocot Dicot

Page 10: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Leaf Function (29.4)

Function: primary site of photosynthesis.

Page 11: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Leaf Vein Patterns:

Monocot Dicot

Page 12: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Leaf Structures:

Page 13: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Flower Functions (30.2)

Function: attract animals for the spread of pollen which leads to reproduction.

Page 14: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Flower Petal Patterns

Monocot Dicot

Page 15: Plant  Structure  & Function Ch. 29.2, 29.3, 29.4, 30.2

Flower Structures:

Lily flower (monocot):

A-anther B-filament A+B = stamen (male)

C-stigma D-style E-ovary C+D+E = pistil (female)

petalsepalpollen