Parts of Plant

Main Parts of Plant

1. Vegetative Part- Organs concerned with the growth & nutrition of the plant- Responsible for the non-reproductive activity

a. Root or Root Systemb. Stemc. Leaves

Main Part of Plant

2. Reproductive Part- Responsible for the production of new individual plant

a. Flowersb. Fruits c. Seeds

VEGETATIVE PART

ROOTS

• For anchoring the plant and absorption of water and mineral

• Cylindrical in form and are usually colorless or have some color

Types of Root System

1. Taproot- Has a primary root

where the lateral root arises

- Typical of the dicot

Types of Root System

2. Fibrous - More or less the same

size originating directly at the base of the stem

- Characteristic of monocot

Type of Root System

3. Adventitious - Arise from any part of

the plant body

Parts of the Root

STEM

- Ascending axis of the plant body for support and conduction

Types of Stem

Herbaceous Stem• Soft and Green• Little growth in diameter• Tissue chiefly primary• Chiefly annual• Covered by an epidermis• Buds mostly naked

Woody Stem• Tough and not green• Considerable growth in

diameter• Tissue chiefly secondary• Chiefly perennial• Covered by corky bark• Buds chiefly covered by

scales

Types of Stem

Herbaceous Woody

Parts of Stem

LEAVES

• Expanded, flat and green• For photosynthesis and transpiration

REPRODUCTIVE PART

Reproductive Part1. Flowers- Modified shoot that bears

the gamete for sexual reproduction

2. Fruits- Ripened ovary- Formed as a result of

union of gametes3. Seeds- Mature ovule- Consist of embryo,

endosperm, cotyledon and seed coat

TYPES OF FLOWERING PLANT

Eudicot / Dicot• Form the largest group of

plants • Netted vein leaf• Flowe parts are in multiples

of 4 or 5• Seeds with 2 cotyledon• Stem is covered with bark

and tiny pores called “ lenticel”

Monocot• Seeds have only one

cotyledon• Parallel vein leaf which are

usually narrow • Floral part is in multiple of 3• Stem do not have lenticel