PLANT BODY(MONOCOT vs DICOT)

Jhia Anjela D. Rivera1,2

1Department of Biology, College of Science, Polytechnic University of the Philippines2Department of Biological Sciences, School of Science and Technology, Centro Escolar University

PLANT BODY

• Shoot system (leaves+stem)

• Root system

• Meristem (cells that divide for life of plant, can give rise to all plant structures)

PLANT TISSUES

• Vascular Tissue• Transport

• Support

• Ground Tissue• Synthesis of Sugars

• Storage

• Support

• Dermal Tissue• Protection

LEAF

• Leaf = blade + petiole• Func: conserves water, site for gas

exchange, site of photosynthesis

Blade

Petiole

STRUCTURE OF A LEAF

Conserves water

PhotosynthesisTransports sugar

and water to stem and roots

STEM

• Stem = series of nodes and internodes• Func: holds the leaves, substance

transportation through vascular tissue

Xylem conducts waterand minerals

Phloem transportssugar

LATERAL MERISTEM

• Causes the stem to grow in width

ROOT

• Func: Anchors plant in soil; takes up water and minerals from soil

MONOCOT vs DICOT

How do monocots differ from dicots? And, how do dicots differ from monocots?

LEAF

MONOCOT:

Veins are parallel to one another

DICOT:

Veins are netted

LEAF

MONOCOT:

Veins are parallel to one another

DICOT:

Veins are netted

STEM (Vascular Bundles)

MONOCOT:

Scattered throughout the stem

DICOT:

Arranged in a circle

STEM (Stem Types)

MONOCOT:

Herbaceous

DICOT:

Herbaceous or woody

ROOT SYSTEM

MONOCOT:

Fibrous root

DICOT:

Tap root

FLOWER

MONOCOT:

Usually in multiples of 3

DICOT:

Usually in multiples of fours or fives

SEED (No. of cotyledons (embryonic leaves)

MONOCOT:

one

DICOT:

two

Summary