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Plant Structure and Transport

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Sandra Mierzwa

on 12 February 2016

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Transcript of Plant Structure and Transport

Plant Structure and Transport
There are many plant types!
Mosses
Conifers
Algae
Flowering Plants
Structure of a typical flowering plant
Can you label its parts ?
Shoot
Flower
Leaf
Stem
Roots
Root Functions
anchor and support

absorb water and minerals

some store food
Stem Functions
Supports and holds up leaves & flowers


Transports water , minerals and food


Some store food
Buds
potential growth point. Here new leaves or flowers may develop
Leaf
Where plant makes its food

Allows gas exchange

Allows water vapour to pass out of the plant



Some store food
Flowers
Produce seeds for reproduction
Transport in Flowering plants

1. Water Transport

Transported by the
xylem

Stomata allow water evaporation

Transpiration : loss of water vapour from a plant

The stomata
Stoma = 1 pore
Stomata = 2+ pores
Tiny openings found on the lower surface of leaves.
Diagram on page 92, what is happening ?
Water is drawn out from the leaf into the air and it pulls a column of water up through the tubes, stem and roots.
To replace this water, plant absorbs water from the soil through the roots.
2.Mineral Transport
Nitrogen, phosphorus , potassium
dissolved in water soil
needed for plant to grow
Xylem
3. Food Transport

transported by
phloem
some passed from leaves to other parts of plant.
Plant tissue
2 types involved in plant transport
Xylem
From roots
Phloem
Transports food

from the leaves around the plant
Transports water and dissolved minerals
To show the transport of water through a plant
Experiment 1
Experiment 2
To show that water is taken in from the roots and passes up and out of plant
Experiment 3
To show that water evaporates from the surface of a leaf by transpiration
Venus Fly Trap
The Dancing Plant
(Desmodium Gyrans)
The Corpse Flower
Petals
attract insects
True or false?
1. The stem supports and holds up the leaves and flowers
2.
Petals produce seeds
3.
Stems and roots can store food
4.
Transpiration is the gain of water
7.The stomata are pores found on the upper surface of the leaf
5. Xylem transports water
6. Phloem transports minerals
Transpiration
p92
Full transcript