Answer:
Stomata would not open and close.
Explanation:
This is the answer because guard cells play an important function of controlling stomata. The ensures that stomata are open during the day and closed during the night for the purposes of photosynthesis. The stomata are the pores that are found on the under surface of a plant leave,whose role is gaseous exchange.
The main function of guard cells is to regulate the opening and closing of the pore formed between the gap of two guard cells, termed as stomata.