Learn how plants transport water, minerals, and food through xylem and phloem, and how transpiration works.
Xylem transports water and minerals upward from roots. Phloem transports food (glucose) made in leaves to other parts of the plant.
What force helps water rise through the xylem against gravity?
Root pressure, capillary action, and transpiration pull working together
Why is phloem transport described as happening in 'both directions', unlike xylem?
Food needs to move from leaves (where it's made) to all other parts, including both upward and downward directions, depending on where it's needed
Transpiration is the loss of water vapour from a plant's leaves, mainly through stomata, which helps draw water upward.
What are stomata, and what is their role in transpiration?
Stomata are tiny pores on leaves that allow water vapour to escape, driving the transpiration process
Why does transpiration increase on hot, dry, windy days?
These conditions increase evaporation rate from leaf surfaces, speeding up water loss
1. What does xylem transport?
2. What does phloem transport?
3. What is transpiration?
4. What are stomata?
5. Name one factor that increases the rate of transpiration.