Gastric glands present in the wall of the stomach do NOT release :
saliva
The correct answer is Option 1 i.e. Saliva
Gastric glands are located in the lining of the stomach and play a key role in digestion. They secrete:
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Mucus – protects the stomach lining from acids.
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Pepsin – a digestive enzyme that breaks down proteins.
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Hydrochloric acid – creates an acidic environment for pepsin to work effectively and kills harmful microbes.
However, saliva is not produced by gastric glands. It is secreted by salivary glands located in the mouth, and its main enzyme, amylase, starts the digestion of starch.
Other options explained:
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Mucus: Secreted by gastric glands to protect the stomach wall.
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Pepsin: Produced in an inactive form (pepsinogen) and activated by HCl.
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Hydrochloric acid: Helps digestion and maintains a low pH in the stomach.
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