Xylem and Phloem and Parts of the Plant

An example of adhesion is

• Water molecules sticking to each other
• Water molecules sticking to cellulose in xylem walls
• Magnets sticking to a metal wall
• Gravity pulling water down

What is it called when water sticks to water?

• Cohesion

• Adhesion

• Capillary Action

• Xylem

When the forces of cohesion and adhesion work together, water can move up the plant against the force of gravity by....

• Phototropism

• Geotropism

• Photosynthesis

• Capillary Action

How does water enter a plant?

• through the stomata

• through the roots

• by active transport in root hair cells

• by osmosis in root hair cells

How do mineral ions enter a plant?

• by osmosis in root hair cells

• by active transport in root hair cells

• through the stomata

• through the roots

Xylem tubes are made of...

• Dead cells

• Living cells

Phloem tubes are made of...

• Dead cells

• Living cells

Xylem tubes transport..

• Water

• Mineral ions

• Food substances (e.g. sucrose)

Phloem tubes transport..

• Water

• Mineral ions

• Food substances (e.g. sucrose)

Phloem tubes transport substances in which direction?

• Up

• Up and down