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Constructing a Plant Lab
Power Point for Pre-lab
What is the function of a root, stem, and leaf in a
plant?
How are roots, stems, and leaves adapted for the plant’s environment?
Roots: Function
A. Anchor plant in soilB. Absorb water and
mineralsC. Store carbohydrates
or water
Examples of storage roots:
Carrots, turnips, and sweet potatoes.
Roots: Types of Roots
•Taproot: The primary root becomes the largest root.
– What is the advantage of having a tap root?
•Fibrous Root: The primary root develops into numerous small roots and branches out.
– What is the advantage of having a fibrous root?
Roots: Types of Roots Continued
•Adventitious Roots - specialized roots that grow from stems and leaves. •Ex: prop roots of corn
–What is the advantage of having adventitious roots?
Stem: Function
A. Transportation – transport water and nutrients.
–Xylem - transports water and nutrients from roots to leaves (upwards)–Phloem - conducts products of photosynthesis throughout the plant
B. Storage – store water and nutrients
C. Support – leaves
Stems: Xylem & Phloem
Leaves: FunctionA. Photosynthesis: Leaves use light
energy, carbon dioxide and water to make carbohydrates.
B. Gas & Water Exchange:
Plants have stomata that open or close for gas and water exchange with the environment.
Stomata
Leaves: Adaptations
Simple Leaf
Compound Leaf
Thick Cuticle
Thin Cuticle
Pine Needles
Diversity of Plants
How will youDesign your
Plant?
What role doesthe environment
have on plant adaptations?
1. Ginger2. Willow bark3. Peppermint4. Aspen bark5. Cayenne pepper6. Cedar tree7. Aloe8. Dandelion9. Oregano10. Garlic
A. Treatment for heart attack and stroke B. Soothes an uneasy stomachC. Treats acne, psoriasis and can be used as a
diuretic. Also tasty in salads!D. Provides salicylic acid used to make
aspirin E. Lowers cholesterol, reduces blood clots,
improves the immune system and may prevent cancer
F. Used by Native Americans to fight asthma and hepatitis
G. Soothes blisters and sunburn H. Used to treat urinary tract infections,
diarrhea and arthritis, and can be used as sun block.
I. Great for motion sicknessJ. Treats cough and chest congestion
Medicinal Uses Of Plants