Why we should not sleep under the trees at night?

Given below is a diagram of the stomatal apparatus. Match the labels with the corresponding names of the compounds. 

Choose the correct combination.

Graph represents the measurement of pH in plant leaves during 36 hrs. of photosynthetic activity. It indicates that acid products were being:

Study the diagram and the list given below.

i) Chloroplast

ii) Epidermal cell

iii) Guard cell

iv) Subsidiary cell

v) Stomatal pore

The correct match is