1. Tek 10b
describe the interactions that occur among systems that perform the functions of transport and reproduction in plants
Transport
Plants have special tissues that allow the transport of essential materials. 
Leaves :entry and exit points for the gases 
Stems connect leaves to the roots and allow transport between them 
Roots absorb water and minerals from the soil. 

2. Root hairs
Root hairs maintain homeostasis because they increase surface area of the roots
This allows nutrient and water absorption

3. Transport- Plants XYLEM
TransporT Plants Phloem
The stem of a plant has two main ‘highways’ of transportation: Xylem and Phloem.
"Highway One" 
Xylem: Moves WATER throughout the plant  from the roots to the leaves 
XYLEM transports WATER ONLY
Phloem- Transport FOOD (glucose) throughout the plant from the leaves to the roots
PHLOEM transport FOOD ONLY
"Highway Two"
Phloem- Transport FOOD (glucose) throughout the plant from the leaves to the roots
PHLOEM transport FOOD ONLY
Memory Tool: Phloem makes the "F" sound like food remember "Phloem Food"

4. Functions of stomata Stomata
Stomata- Openings in epidermis (outside layer) of the leaf where gas exchange and water loss occurs. 
Guard Cells: control the opening and the closing of the stomata
Turgor pressure (water pressure)
High Turgor pressure: Stomata open
Low Turgor pressure: Stomata close 
Stomata allow plants to take IN carbon dioxide
Stomata allow plant to RELEASE oxygen
Helpo reduce water loss because the guard cells close when little water is available
Which help prevent the plant from drying out!
Gases move IN and OUT.
Water can only move OUT through water loss (transpiration)
Much water available 
Little water available

5. Transpiration
Water is collected by the roots, but how does it get up to the leaves where it is needed?
As the plant receives sunlight, water in the plant is evaporated and escapes the plant.
The plant must replace the water. The water that is evaporating at the top creates suction that helps water from the roots climb to the leaves through the xylem.
Water passes from cell to cell until it gets to where it is needed.
Transpiration is the process by which plants move water (thru the xylem) from the roots to stem thru the stomata an release excess moisture into the air
Why do plants need to need perform transipiration?
Creates negative pressure that allows plants to draw water up from the roots and transport nutrients throughout the plant

6. Sexual Reproduction Plants have male parts and female parts
Flowers are the reproductive organs of plants

7. Female plant organ Male plant organ Pistil (carpels) contains:
Stigma: sticky for pollen to attach.
Style: sperm travel down to ovary.
Ovary (fruit): stores ovules
Ovule: (eggs).
Stamen contains:
Anther: produces pollen (gamete)
Filament: upholds anther

8. pollination
Seeds need to be dispersed away from the parent plant in order to reduce competition for space, light, nutrients and water.
Pollination: the transfer of pollen grains from the anther to the stigma.
Pollination may be accomplished by wind, insects, and birds.
In some cases, the colored petals of a flower act as a visual attraction for insects. Nectar can also act as an attractant.
Seeds can be dispersed by:
Wind
Water
Mechanical
Animals
Self-Pollination is the transfer of pollen from the anther to the stigma of the same flower or from the anther to the stigma of another flower that is part of the same plant.
Cross pollination is the transfer of pollen from an anther on one flower to a stigma of a flower on a different plant. Cross pollination is an adaptation which causes variation among flowers.