Two of the four principle classes of organic compounds are proteins and nucleic acid’s. what is the relationship between proteins and nucleic acid

Nucleic acids combine to synthesize proteins, from DNA which becomes RNA and when entering the ribosome generates such synthesis.

Explanation:

Protein synthesis is a complex process that begins in the cell nucleus and begins when the protein gene is encoded and expressed by the transcription process. The transcript is the one that transmits the information from the DNA to the RNA (the two nucleic acids).

There is also an tRNA, which carries the amino acids for each messenger RNA where they bind to the proper position, within the protein synthesis

As a biomolecules, proteins and nucleic acids are not closely similar in structure. The major relationship between the two has to do with protein production -- DNA deoxyribose nucleic acids contains the information that a cell uses, with the help of RNA, to make protein

Explanation:

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.