which organelles in the animal cell is the site cellular respiration where food energy is converted into cellular energy in the form of atp

The mitochondria (specifically the inner membrane/inner membrane space) is the place where ATP is generated from glucose and oxygen via oxidative phosphorylation. The initial stages where glucose is converted to pyruvate occurs in the cytoplasm.

they may bind directly to special “promoter” regions of dna, which lie upstream of the coding region in a gene, or directly to the rna polymerase molecule.

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.