8. What is the difference between DNA's location in a prokaryotic (bacteria) cell and a eukaryotic cell?

The correct answer is -

prokaryotic - nucleoid

eukaryotic - nucleus

Explanation:

There are two types of cells broadly one prokaryotic or bacterial cell and eukaryotic cell. Both cells have many differences functionally and structurally. Prokaryotic cells have their genetic material in the denser region called nucleoid which is not bound by and membrane.

In eukaryotic cells, there is an organelle called a nucleus that carries genetic material enclosed in a double membrane that has many other component and a matrix called nucleoplasm.

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.