Answer:
The numbered organelle that produces ATP during cell respiration is MITOCHONDRIA.
Step-by-step explanation:
Mitochondria are cytoplasmic organelles present in the cellular cytoplasm. They play the role of cellular respiration, thus producing ATP (adenosine triphosphoid), which is the energy required for cell function. In cellular respiration, a process of chemical reactions occurs, whereby the cell gets energy to meet its vital needs.
The chemical reactions that occur in the process of cellular respiration are driven by Krebs cycle enzymes (found in the center of mitochondrial fluid). Also involved in this process are the electron transport chain enzymes (located in the inner membrane lining). Mitochondria use the oxygen and glucose offered by the cell, transforming them into energy in the form of ATP (adenosine triphosphate) that is returned to the cell.
Mitochondria are self-replicating organelles that have their own DNA, which appears as double circular filaments and is very similar to bacteria. These organelles also have RNA, like messenger, ribosomal and transporter and besides presenting small ribosomes.