How is facilitated diffusion different from diffusion?

We know that plants are harmed by excess water. But plants survive under flooded condition. How are they able to manage excess water?

Differentiate between diffusion and translocation in plants.

Explain the mass flow hypothesis of transport in phloem.

Observe the diagram and answer the following;

a. Are these types of guard cells found in monocots or dicots?

b. Which of these shows a higher water content (i) or (ii)?

c. Which element plays an important role in the opening and closing of stomata?