Mineral Nutrition in Biology : Practice MCQ Questions & Answers with Explanations

Formation of $NO_2$ and $NO_3$ from $NH_3$ is indentified by which name ?

Formation of FAD during $N_2$ fixation occurs during which processes ?

Due to which type of bacteria atmospheric $N_2$ is maintained ?

Due to which element deficiency bark of tree becomes rough and gets split and exudes gum-like secretion ?

Due to natural lightening

Donnan equillibrium is achieved at which surface ?

Deficiency of which mineral causes shortening of internodes and reduction in cambium activity ?

Deficiency of which element shows stunted growth ?

Deficiency of which element kills terminal buds leaving a rosette effect on the plant ?

By which principle, indirect storage of stable and non-diffusible ions is explained ?

By which nitrite is converted into nitrate ?

According to mass flow principle what is responsible for absorption of water ?