Bacteria have no membrane-enclosed organelles. however, some still generate atp through cellular respiration. where might the electron transport chain be found in these organisms? view available hint(s) bacteria have no membrane-enclosed organelles. however, some still generate atp through cellular respiration. where might the electron transport chain be found in these organisms? a. mitochondria b. cytoplasm c. nucleoid region d. plasma membrane p

The correct answer is d. plasma membrane

Explanation:

Bacteria do not have membrane-enclosed organelle like mitochondria to generate ATP but even then it produces ATP because in bacterial plasma membrane acts as the machinery of ATP synthesis.

The ATP synthesis in bacteria is the same as eukaryotes. In prokaryotes, the plasma membrane consists of an electron transport system and NADH helps in building the proton gradient across the plasma membrane.

Then after the proton gradient is built in the plasma membrane the proton tends to come back into the cytoplasm through the ATP synthase complex which generates ATP from ADP and inorganic phosphate.

Therefore the correct answer is d. plasma membrane.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.