why are transport systems needed in multicellular plants?

How is the xylem and phloem distributed in the roots?

How is the xylem and phloem distributed in the stem?

What is the cambium?

How is the xylem and phloem distributed in the leaves?

what is the structure of the xylem vessels?

What is the function of the ligin in the xylem vessles?

What is the structure of a sieve tube?

Why are sieve tubes no true cells?

What are companion cells?

What is the structure of companion cells?

Define transpiration.

Why is transpiration a consequence of gas exchange?

How is transpiration reduced?

What factors affect the rate of transpiration?

How does the number of leaves affect the transpiration rate?

How does the number,size and position of the stomata affect the transpiration rate?

How does the presence of a cuticle affect the transpiration rate?

How does light affect the transpiration rate?

How does temperature affect the transpiration rate?

How does relative humidity affect the transpiration rate?

How does air movement affect the transpiration rate?

How does water availability affect the transpiration rate?

how is a potometer used to measure transpiration rates?

How does water movement occur between plant cells?

How does water movement occur between cells and the environment?

What pathways are used to transport water in the plant?

What happens in the apoplast pathway?

What happens in the symplast pathway?

What happens in the vacuolar pathway?

What does the Casparian strip stop?

What is adhesion?

How does water move by adhesion?

What is cohesion?

How is water moved by the cohesion tension theory?

What does the movement of water by the cohesion tension theory create?

How are xerophytes adapted to reduce water loss in their leaves?

How does having smaller leaves reduce water loss?

How does having Densely packed spongy mesophyll reduce water loss?

How does having Hairs on the surface of the leaf reduce water loss?

How does rolling the leaves reduce water loss?

What is translocation?

Where does translocation occur?

What is a source?

What is a sink?

What is the mechanism of phloem loading?

What evidence is there for active loading taking place?

What evidence is there against active loading taking place?