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Plant Parts &
Functions
Jean Lacob
Covering:
5th
grade CA State
Standard 2e
Parts of The
Plant
• Roots
• Leaves
• Stem
• Flower
• Seed
Image found at: www.webinstituteforteachers.org
Roots
• 2 Types of
Root Systems
– Taproot
– Fibrous
System
Image found at: http://www.puc.edu
Roots
Taproot System
Primary roots grow
down from the stem
with some
secondary roots
forming
Image found at: http://www.arboretum.fullerton.edu
Roots
Fibrous
Root
System
Small lateral
roots that
spread out just
below the soil
surface Image found at: www.wildmanstevebrill.com
Can you identify these root
types?
1.
2.
3.
4.
5.
Root Functions
• Absorption of water and nutrients
– performed by root hairs
• Transportation of water and
nutrients to stem
• Anchor plant to maintain stability
• Store food and water
Roots have 4 primary functions
Parts of the Root
• Epidermis
– Outermost layer of cells, like the “skin” of
the root
• Cortex
– Tissue inside epidermis that stores starch
and other substances for the growth of the
root
Carrot root cross section, 40X
• A= vascular cylinder contains
the (xylem and phloem)
• B = cortex
• C = endodermis (contains cells
which prevent water from
leaking from the vascular
cylinder)
• D = epidermis (protects the
carrot root and absorbs water)
Image found at: www2.sluh.org/bioweb/microscopy/plantanatomy/carrotrootlabel
Xylem and Phloem
Cross- section of a stem
Image found at www.karencarr.com
Functions of the
Stem
• Transport water and nutrients
from roots to leaves
• Supports leaves, fruit, and
flowers
• Food storage
What plants need:
• Watch this animated movie to see what
plants need and what they produce.
• Click Here for movie
Important Functions of
Leaves
• Photosynthesis
– Process that plants use to produce
their food
– Carbon Dioxide + Water  Sugar + Oxygen
• Transpiration
– Loss of water and exchange of carbon
dioxide
Leaf Parts
• Apex
– Tip of leaf
• Base
– Attaches to petiole
– if petiole is absent,
– attaches directly to stem
• Margin
– Edge of leaf
• Epidermis
– “Skin” of leaf - responsible for gas exchange
• Stomata
– Outside layer of leaf opening in epidermis where gas and
water exchange
• Mesophyll
– Middle layer of leaf where photosynthesis occurs
Veins
Stalk
Main
Vein
Cross-section of a Leaf
Image at: EnchantedLearning.com

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Powerpoint plant parts for science gr 5

  • 1. Plant Parts & Functions Jean Lacob Covering: 5th grade CA State Standard 2e
  • 2. Parts of The Plant • Roots • Leaves • Stem • Flower • Seed Image found at: www.webinstituteforteachers.org
  • 3. Roots • 2 Types of Root Systems – Taproot – Fibrous System Image found at: http://www.puc.edu
  • 4. Roots Taproot System Primary roots grow down from the stem with some secondary roots forming Image found at: http://www.arboretum.fullerton.edu
  • 5. Roots Fibrous Root System Small lateral roots that spread out just below the soil surface Image found at: www.wildmanstevebrill.com
  • 6. Can you identify these root types? 1. 2. 3. 4. 5.
  • 7. Root Functions • Absorption of water and nutrients – performed by root hairs • Transportation of water and nutrients to stem • Anchor plant to maintain stability • Store food and water Roots have 4 primary functions
  • 8. Parts of the Root • Epidermis – Outermost layer of cells, like the “skin” of the root • Cortex – Tissue inside epidermis that stores starch and other substances for the growth of the root
  • 9. Carrot root cross section, 40X • A= vascular cylinder contains the (xylem and phloem) • B = cortex • C = endodermis (contains cells which prevent water from leaking from the vascular cylinder) • D = epidermis (protects the carrot root and absorbs water) Image found at: www2.sluh.org/bioweb/microscopy/plantanatomy/carrotrootlabel
  • 11. Cross- section of a stem Image found at www.karencarr.com
  • 12. Functions of the Stem • Transport water and nutrients from roots to leaves • Supports leaves, fruit, and flowers • Food storage
  • 13. What plants need: • Watch this animated movie to see what plants need and what they produce. • Click Here for movie
  • 14. Important Functions of Leaves • Photosynthesis – Process that plants use to produce their food – Carbon Dioxide + Water  Sugar + Oxygen • Transpiration – Loss of water and exchange of carbon dioxide
  • 15. Leaf Parts • Apex – Tip of leaf • Base – Attaches to petiole – if petiole is absent, – attaches directly to stem • Margin – Edge of leaf • Epidermis – “Skin” of leaf - responsible for gas exchange • Stomata – Outside layer of leaf opening in epidermis where gas and water exchange • Mesophyll – Middle layer of leaf where photosynthesis occurs
  • 17.
  • 18. Cross-section of a Leaf Image at: EnchantedLearning.com

Editor's Notes

  1. http://www.catie.org.uk/PL_plant_life_page.html link for movie