Plant Systems

Plant roots

Root cap

Reduces friction and protects root when growing

Cortex

Transports substances between vascular and epidermis

Apical meristem

Responsible for extension of roots and shoots

Epidermis

Root hairs maximize water absorption

Region of maturation

cells mature into various tissues

Region of elongation

new cells begin to increase in length

Endodermis

Controls absorption of water and nutrients

Plant tissues

Vascular tissue

Xylem

Phloem

Meristermatic tissue

Cells that have the ability to divide

Dermal tissue

Outer protective layer of the primary plant body

Ground tissue

Collenchyma

Sclerenchyma

Parenchyma

Plant stems

Rhuzome

Bulb

Tuber

Stolon

1 seed leaf

Vascular arrangement is scattered throughout

Number of petals is in multiples of 3

Narrow leaves

Parallel veins

Fibrous root structure

Stimulatory

Cytokinin

Gibberlin

Auxin

Inhibitory

Abscisic acid

Ethylene

Classifications

Vascular

Angiosperm

Monocot

Dicot

Bears fruits

Gymnosperm

Cone bearing

Don't produce seeds

Non-vascular

No flowers, leaves, roots or stems

2 seed leaves

Vascular arrangement is arranged in ring around stem

Number of petals is in multiples of 4 or 5

Broad leaves

Branching veins

Taproot root structure

Primary Succession

Pioneer species

Climax community

Secondary Succession

Intact soil

Ecological disturbance

Ecological Disturbance

Plant growth

Increased diversity