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20: Plant Form and Function
Lecture 6
10
Biology
Undergraduate 1
04/25/2011

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Cards

Term
4 Functions of Roots:
Definition

1. Provide moisture and nutrients (N,P,K)

2. Attaches plant to the ground to support vertical growth or to climb vertical surfaces

3. Starch storage

4. Access oxygen

Term
7 Functions of Stems/ Trunks/ Shoots
Definition

1. Transport nutrients/ water

2. Support of plant (to access light)

3. Photosynthesis (like in cactus)

4. Water Storage

5. Protection (Thorns = modified stems on trees and bushes)

6. Energy Storage

7. Asexual Reproduction (stolons and rhizomes)

Term
6 Functions of Leaves
Definition

1. Collect Light

2. Collect Water

3. Attach to other vegetation (for climbing)

4. Defense (thorns = modified leaves in cacti) 

5. Store Water

6. Obtaining Nitrogen (carnivorous/ epiphytic) 

Term
3 Functions of the Flower
Definition

1. Attract pollinators

2. Protect eggs, embryo and seeds

3. Promote seed dispersal (by fruit or seeds with floatations devices and the like)

Term
Leaf Cross Section (from top to bottom)
Definition

1. Epidermis 

2. Palisade Mesophyll

3. Spongy mesophyll

4. Vascular bundle in spongy mesophyll

Term
Stem/ Trunk Cross Section
Definition

1. Cork Cells

2. Cork Cambium

3. Secondary phloem cells

4. Secondary vascular cambium

5. Secondary Xylem cells

6. Sapwood

7. Heartwood

Term
Root Cross Section
Definition

1. Epidermis with lateral roots and root hairs

2. Cortex

3. Vascular Tissue (vascular bundle)

Term
Vascular Tissue (vascular bundle) in root
Definition

1. Endodermis

2. Pericycle

3. Phloem

4. Xylem

Term
Cellular Division Zone
Definition

1. Root cap

2. Apical meristems

3. Primary Meristems 

Term
Elongation Zone
Definition

1. Epidermis

2. Cortex

3. Vascular Tissue

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