Anaerobic respiration produces significantly less ATP than aerobic respiration. Here's a breakdown:

* Aerobic respiration: Produces 36-38 ATP molecules per glucose molecule.

* Anaerobic respiration: Produces 2 ATP molecules per glucose molecule.

This is because anaerobic respiration doesn't use oxygen as the final electron acceptor. Without oxygen, the electron transport chain, which is the primary source of ATP production in aerobic respiration, cannot function. Instead, anaerobic respiration uses other molecules like pyruvate or sulfate as electron acceptors, leading to a much lower ATP yield.

Here's a simplified comparison:

| Respiration Type | ATP Yield |

|---|---|

| Aerobic | 36-38 ATP |

| Anaerobic | 2 ATP |

Important Note: Some sources might mention different numbers for ATP production in anaerobic respiration, depending on the specific pathway and organism being considered. However, the general principle remains the same: anaerobic respiration yields far fewer ATP molecules than aerobic respiration.