ROOTS!! The place where the journey begins. There are 4 jobs that roots do: 1.Anchor – The tree failed before the roots. – Why do most trees fall when.

ROOTS!! The place where the journey begins

There are 4 jobs that roots do: 1.Anchor – The tree failed before the roots. – Why do most trees fall when it rains?

There are 4 jobs that roots do: Absorb – The main thing they absorb is water

Root structures Root hairs – How do you think these help with absorption?

There are 4 jobs that roots do: Transport – What needs to be transported?

Root structures Central / Vascular cylinder – xylem, phloem and cambium What is the job of xylem? Phloem? Cambium makes more xylem and phloem

There are 4 jobs that roots do: Store

Root structures Cortex – main site of storage

Turnips Look in this reading for the sad story of turnips. turnips

Jack o Lanterns Check out this link on the history of jack o lanterns jack o lanterns

Carrots and…. http://www.youtube.com/watch?v=LOiKa51ll-k Read the part under “the partridge family Susan Dey Read about cartotenemia carotenemia

Cassava Read the following about the good and bad of cassava cassava

Meristem Growth regions of the plant – Found at the ends of the root and the stem – What cellular process do you think happens here?

Two types of root systems: Fibrous

Two types of root systems: Tap

4 Zones of roots

4 Growth regions of the plant Root cap – Protects and produces a slime

4 Growth regions of the plant Zone of cell division / meristematic growth

4 Growth regions of the plant Zone of elongation – Cells grow but they are unspecialized

4 Growth regions of the plant Zone of maturation / absorption – specialization occurs

Root structures Epidermis – outer covering

Specialized roots – Food storage

Specialized roots Water storage Remember this plant?

Specialized roots Propagative – roots that produce clones by spreading out and then send up new shoots Most cherry orchards are produced this way

Specialized roots Pneumatophores Read pneumatophores :pneumatophores

Specialized roots - Aquatic Water Hyacinth

Specialized roots Aerial Roots Read the following Aerial rootAerial root

Specialized roots Contractile roots

Specialized roots Buttress roots roots

Specialized roots Prop roots

Specialized roots Parasitic roots

Specialized roots Climbing roots

Nitrogen fixation Go to the bottom of this page to read about and understand nitrogen fixation nitrogen fixation

Legumes

Presentation on theme: "ROOTS!! The place where the journey begins. There are 4 jobs that roots do: 1.Anchor – The tree failed before the roots. – Why do most trees fall when."— Presentation transcript: