Title: Quarter ends Friday
1Quarter ends Friday I accept NOTHING after
Friday. Test corrections due Friday Tomorrow
Pre-lab for Photosynthesis due River Run
April 8 - 17
2Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- Roots
- Stems
- Leaves
3Figure 35.2 An overview of a flowering plant
4Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- Roots
- Stems
- Leaves
- What are the different varieties of roots?
- Tap roots eudicots gymnosperms have lateral
roots off of the side - Fibrous roots monocots shallow just below
the surface - What are some root modifications?
- Figure 35.4
5Figure 35.4 Modified roots
6Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- Roots
- Stems
- Leaves
- What are the different varieties of roots?
- Tap roots eudicots gymnosperms have lateral
roots off of the side - Fibrous roots monocots shallow just below
the surface - What are some root modifications?
- Figure 35.4
- What are stems?
- Above ground organ with an alternating system of
nodes (where the - leaves attach) internodes (stem segments
between nodes) - Axillary bud structure at each node that may
form a - lateral shoot (branch)
- What are some stem modifications?
- - Figure 35.5
7Figure 35.5 Modified stems
8Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- Main photosynthetic organ of a plant
9Figure 35.6 Simple versus compound leaves
10Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- Main photosynthetic organ of a plant
- What are some modified leaves?
- - Figure 35.7
11Figure 35.7 Modified leaves
12Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- Dermal outer protective covering
- Vascular long distance transport between roots
shoots - Ground tissue between vascular dermal
13Figure 35.8 The three tissue systems
14Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Parenchyma
- Least specialized, typical plant cell
- Thin, flexible primary walls
- Do most of metabolic work
- Photosynthesis
- Storage
- All other cells derived from parenchyma
15Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Parenchyma
- Collenchyma
- Uneven thicker primary walls than parenchyma
- Grouped in strands or cylinders for support of
young plant - Provide support without restricting growth
- No secondary walls no lignin
16Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Parenchyma
- Collenchyma
- Sclerenchyma
- Thicker secondary walls with lignin for rigid
support - Mature sclerenchyma cannot elongate are usually
dead lacking a - protoplast
- 2 forms
- Fibers long, slender, tapered usually in
bundles rope flax - fibers for linen
- Sclerids short irregular shaped that provide
hardness to
17Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Parenchyma
- Collenchyma
- Sclerenchyma
- Tracheids vessels elements
- H2O conducting cells
- Tracheids
- All vascular plants
- Long, thin cells with tapered ends
- Vessel elements (angiosperms)
- Wider, shorter less tapered
18Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Parenchyma
- Collenchyma
- Sclerenchyma
- Tracheids vessels elements
- Sieve-tube members
- Sugar-conducting cells of phloem
- Alive but lack nucleus, ribosomes, vacuole
- Companion cells help load sugar
19Figure 35.9 Examples of Differentiated Plant Cells
20Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Where do plants grow?
- - Meristems
21Figure 35.10 An overview of primary and secondary
growth
Primary growth apical meristems Secondary
growth lateral meristems
22Figure 35.12 Primary growth of a root
23Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Where do plants grow?
- How are leaves structured?
24Figure 35.17 Leaf anatomy
25Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Where do plants grow?
- How are leaves structured?
- Lets consider primary secondary growth of a
stem.
26Figure 35.18 Primary and secondary growth of a
stem
27Figure 35.18 Primary and secondary growth of a
stem
28Figure 35.18 Primary and secondary growth of a
stem
29Chapter 35 Plant Structure, Growth Development
- What are the 3 main plant organs?
- What are the different varieties of roots?
- What are some root modifications?
- What are stems?
- What are some stem modifications?
- What is a leaf?
- What are some modified leaves?
- What are the 3 tissue systems of plants?
- What are the different types of plant cells?
- Where do plants grow?
- How are leaves structured?
- Lets consider primary secondary growth of a
stem. - Where does secondary occur?
- Vascular cambium
30Figure 35.19 Cell division in the vascular cambium
31Figure 35.20 Anatomy of a tree trunk