Ammonia is added to soil in two ways by microbes involved in nitrogen cycle. Name and define them.

Name the two enzymes involved in the fermentation process in yeast.

Name the two amino acids involved in the formation of amides in plants.

Name two elements involved in the redox reactions.

Name two iron-containing proteins involved in electron transport.

Represent schematically the nitrogen cycle. Name the organisms involved in this cycle.

Name two ways of joining resistors in a circuit.

Name two organic forms of nitrogen that are transported through xylem.

Name the two basic phases of cells cycle and differentiate between the two.

An organic compound contains A(C_7H_5N) on hydrolysis with strong aqueous acid gives another compound B which is a monobasic aromatic carboxylic acid. The compound B on treatment with ammonia gives a salt which on heating gives C. The compound C undergoes Hofmann's bromamide reaction to yield aniline. Name A, B and C and write the chemical reactions involved.