The Cell membrane-bound organelles, which carry out cell functions.
Nucleus, which contains the DNA cytoplasm.
The nucleus, the membrane-enclosed internal region that contains genetic material.
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Prokaryotic cells because they don't have a nuclei.
Parietal cells produce gastric acid (hydrochloric acid) in response to histamine (via H2 receptors), acetylcholine (M3 receptors) and gastrin (gastrin receptors). Parietal cells contain an extensive secretory network (called canaliculi) from which the HCl is secreted by active transport into the stomach.
