Plants and Plants and waterwater

Plants and water SLOsPlants and water SLOs

Describe the process of Describe the process of transpirationtranspiration

Explain the function of xylem Explain the function of xylem and phloem tubes in plantsand phloem tubes in plants

Describe the process of Describe the process of diffusion and osmosisdiffusion and osmosis

Photosynthesis Review

1. “Photo” means:

2. “synthesis” means:

3. Photosynthesis is a process where:

4. The equation for photosynthesis is:

5. All __________ things undergo respiration, which is the same/opposite (circle one) to photosynthesis

LightTo make/put together

Plants make food using the energy from sunlight

Carbon dioxide + water food (glucose) + energy

Sunlight

Living

Transport in plants Transport in plants

Plants use water to carry Plants use water to carry substances from one part substances from one part

to another.to another.

Plants do not have blood Plants do not have blood or hearts to pump it!or hearts to pump it!

The vascular system of The vascular system of plantsplants

There are two types of tubes in There are two types of tubes in plants:plants:Xylem: tubes that carries Xylem: tubes that carries waterwater (and minerals) (and minerals) upwardsupwards

Phloem: tubes that carries Phloem: tubes that carries food food (glucose) (glucose) up AND downup AND down the plantthe plant

TranspirationTranspiration

Water comes in Water comes in through the roots through the roots and moves up and moves up through the through the xylem. Water is xylem. Water is lost by lost by evaporation in the evaporation in the leavesleaves

(like a straw)(like a straw)

Read P81 in NMS1 and complete Read P81 in NMS1 and complete questions 4-5 (draw a nice BIG questions 4-5 (draw a nice BIG diagram + labels showing the diagram + labels showing the movement of water in trees/plants)movement of water in trees/plants)

Osmosis causes Osmosis causes transpirationtranspiration

Water escapes the leaves by evaporation

Water moves up the stem to replace the water lost in the leaves it is drawn up by the transpiration stream

Water moves into the root cells by osmosis because there is more water in the soil than in the root cells

Osmosis powers the movement of water in plants – as water escapes the leaves it is replaced by water moving up the stem from the roots