Biology

Q. Quantum yield of photosynthesis is : (a) 33% (b) 9% (c) 12% (d) 8% Solution : Correct option : C The number of photons or quanta required by a…

Q. In which of the following forms is iron absorbed by plants : (a) Ferric (b) Ferrous (c) Free element (d) Both ferric and ferrous Solution : Correct option : D Plants…

Q. Which of the following elements is responsible for maintaining turgor in cells : (a) Magnesium (b) Sodium (c) Potassium (d) Calcium Solution : Correct option : C Potassium is…

Q. Which is essential for the growth of root tip : (a) Ca (b) Mn (c) Zn (d) Fe Solution : Correct option : A Calcium is needed to the…