question_answer

Identify the correct statements from the following.

(i) Accumulation of \[{{K}^{+}}\] ions in the guard cells does not require energy.

(ii) A high pH favours stomatal opening.

(iii) Movement of chloride ion into guard cells as in response to the electric differential created by \[{{K}^{+}}\] ions.

(iv) With entry of several \[{{K}^{+}}\] ions and chloride ions, water potential of guard cell increases.

The correct combination is:

A) (i) and (iii)         

B)        (i) and (ii)

C) (ii) and (iii)     

D)        (iii) and (iv)