Q. Read the following statements
Zona reticulata forms the inner layer of adrenal cortex.
Insulin is a peptide hormone secreted by beta cells of pancreas in pancreatic juice.
Parathormone and thyroxine are antagonistic hormone.
How many statements are incorrect ?

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Solution:

Pancreatic juice is a liquid secreted by the pancreas, which contains a variety of enzymes, including trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, nucleases and amylase. Insulin is a peptide hormone secreted by beta cells of pancreas directly in the blood.
Parathormone and Calcitonin are antagonistic hormone