Given below are two statements: Assertion A: Chloride plays an essential role in stomatal regulation. Reason R: Soil containing chlorine concentration 2 ppm or less is considered low or deficient.
In the light of the above statements, choose the most appropriate answer from the options given below:

Arrange the following electron carriers in the correct sequence of electron flow during photosynthesis in the thylakoid membrane: (A) Cytochrome b6-f complex (B) Plastoquinone (C) PS-II (D) Plastocyanin
Choose the correct answer from the options given below:

__________ in the direct substate for plant respiration.

Respiratory Quotient (RQ) for fats is