During anaerobic respiration in plants ethanol is formed but in animals lactic acid is formed.Why?
Answers
Answer:
Anaerobic cellular respiration is similar to aerobic cellular respiration in that electrons extracted from a fuel molecule are passed through an electron transport chain, driving \text{ATP}ATPstart text, A, T, P, end text synthesis. Some organisms use sulfate (\text {SO}_4^{2-})(SO
4
2−
)left parenthesis, start text, S, O, end text, start subscript, 4, end subscript, start superscript, 2, minus, end superscript, right parenthesis as the final electron acceptor at the end ot the transport chain, while others use nitrate (\text {NO}_{3}^-)(NO
3
−
)left parenthesis, start text, N, O, end text, start subscript, 3, end subscript, start superscript, minus, end superscript, right parenthesis, sulfur, or one of a variety of other molecules^1
1
start superscript, 1, end superscript.
What kinds of organisms use anaerobic cellular respiration? Some prokaryotes—bacteria and archaea—that live in low-oxygen environments rely on anaerobic respiration to break down fuels. For example, some archaea called methanogens can use carbon dioxide as a terminal electron acceptor, producing methane as a by-product. Methanogens are found in soil and in the digestive systems of ruminants, a group of animals including cows and sheep.
Similarly, sulfate-reducing bacteria and Archaea use sulfate as a terminal electron acceptor, producing hydrogen sulfide (\text H_2\text S)(H
2
S)left parenthesis, start text, H, end text, start subscript, 2, end subscript, start text, S, end text, right parenthesis as a byproduct. The image below is an aerial photograph of coastal waters, and the green patches indicate an overgrowth of sulfate-reducing bacteria.
Explanation: