Download - ROOTS AND STEMS - BOTANY LAB SEMI FINALS
![Page 1: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/1.jpg)
Roots
Plant organ systems
![Page 2: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/2.jpg)
What are the primary functions of roots?
![Page 3: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/3.jpg)
Fibrous and taproot systems
![Page 4: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/4.jpg)
![Page 5: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/5.jpg)
![Page 6: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/6.jpg)
Dicots Monocots
![Page 7: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/7.jpg)
Root structure
![Page 8: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/8.jpg)
Root cap
• Parenchyma• Perception of
gravity
![Page 9: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/9.jpg)
Notice how the growing zone has no root hairs or lateral roots!
Growth among soil particles would result in shear forces.
Zone of Maturation - cell differentiation
ProtodermGround MeristemProvascular
Zone of Cell Elongation - cell expansion
Zone of Cell Division - new cells by mitosis
Root Cap - penetration, padding
![Page 10: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/10.jpg)
Mucilage Slough Cells
![Page 11: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/11.jpg)
Root Tip Senses GravityAuxin Hormone ProducedAuxin Accumulates on LowerGrowth Inhibited on Lower…Relative to UpperRoot Curves Downward
Gravitropism
Root Hairs Increase Surface Area
Root Hairs Secrete Acid (H+)
H+ Cation Exchange w/Minerals
Mineral Uptake into Roots
Water and Mineral Uptake
![Page 12: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/12.jpg)
Region of maturation
![Page 13: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/13.jpg)
![Page 14: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/14.jpg)
Mature root structure
![Page 15: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/15.jpg)
Monocot root, c.s.
![Page 16: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/16.jpg)
Dicot root, c.s.
![Page 17: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/17.jpg)
Phloem
Xylem
Endodermis
![Page 18: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/18.jpg)
Endodermis regulates mineral absorption
![Page 19: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/19.jpg)
![Page 20: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/20.jpg)
Lateral (branch) roots
![Page 21: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/21.jpg)
Endodermis Pericycle
![Page 22: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/22.jpg)
![Page 23: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/23.jpg)
Endodermis Pericycle
![Page 24: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/24.jpg)
![Page 25: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/25.jpg)
![Page 26: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/26.jpg)
![Page 27: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/27.jpg)
![Page 28: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/28.jpg)
Specialized roots• Storage roots
![Page 29: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/29.jpg)
Propagative roots
![Page 30: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/30.jpg)
Pneumatophores
![Page 31: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/31.jpg)
Aerial roots
![Page 32: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/32.jpg)
Aerial roots – velamen (orchids)
![Page 33: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/33.jpg)
Contractile roots
![Page 34: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/34.jpg)
Prop roots
![Page 35: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/35.jpg)
Root nodules
![Page 36: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/36.jpg)
Root nodules
![Page 37: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/37.jpg)
Parasitic roots• Witchweed
![Page 38: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/38.jpg)
•Support
•Conduction
•Growth
Stem functions
![Page 39: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/39.jpg)
Vascular bundle arrangementof roots and stems
Roots
Stems
Monocot Dicot
![Page 40: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/40.jpg)
Dicot stem anatomy
![Page 41: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/41.jpg)
Coleus stem vascular bundles
![Page 42: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/42.jpg)
Dicot stem anatomy
![Page 43: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/43.jpg)
Secondary growth of dicot stems
![Page 44: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/44.jpg)
heartwood sapwood
![Page 45: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/45.jpg)
![Page 46: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/46.jpg)
secondary xylem
secondary phloem
![Page 47: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/47.jpg)
Annual rings of phloem
phloem
fibers
![Page 48: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/48.jpg)
LenticelsLenticels
![Page 49: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/49.jpg)
Lenticels
![Page 50: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/50.jpg)
Specialized stems
![Page 51: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/51.jpg)
Cladophyll
![Page 52: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/52.jpg)
Thorns
![Page 53: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/53.jpg)
Tendrils
![Page 54: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/54.jpg)
That’s a big stem!• Baobab (Adonsonia digitata) grow up to
45 ft. in diameter
![Page 55: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/55.jpg)
That’s a big stem!
Redwoods grow up to 350 ft tall; 30 ft. dia.
![Page 56: ROOTS AND STEMS - BOTANY LAB SEMI FINALS](https://reader037.vdocuments.us/reader037/viewer/2022102711/557d3d8cd8b42af30d8b4d6b/html5/thumbnails/56.jpg)
Bristlecone pines
• Oldest organism – 4767 yrs. old