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The electron micrograph shows the structures in an exocrine gland cell of the pancreas. Glands
are organs that secrete and release particular chemical substances. Melatonin is an important
hormone secreted in the pineal gland in the brain. Describe its role in mammals. State the
principal product of this cell. Using the table, identify the organelles labelled I and II on the
electron micrograph with their principal role.

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The electron micrograph shows the structures in an exocrine gland cell.pdf

  • 1. The electron micrograph shows the structures in an exocrine gland cell of the pancreas. Glands are organs that secrete and release particular chemical substances. Melatonin is an important hormone secreted in the pineal gland in the brain. Describe its role in mammals. State the principal product of this cell. Using the table, identify the organelles labelled I and II on the electron micrograph with their principal role.