Refer to the given diagram of an animal cell and select the correct option regarding P and Q

Options

A. Some of the vesicles of P store digestive enzymes obtained Q from Q in inactive state to form primary lysosome
B. Polypeptides synthesised at Qare transported to P where they are modified into functional proteins for secretion
C. Q synthesises acrosome which plays an important role in the fertilisation process in humans
D. P is absent in pancreatic cells and cells of salivary glands whereas Q is absent in liver cells.

Explanation

The labelled part P in the diagram is endoplasmic reticulum and Q is Golgi apparatus. Some of the vesicles of Golgi apparatus store digestive enzymes obtained from endoplasmic reticulum in inactive state to form primary lysosome. Polypeptides synthesised by ribosomes present on rough endoplasmic reticulum are transported to Golgi apparatus for modification into functional proteins. Endoplasmic reticulum and Golgi apparatus are present in pancreatic cells, salivary glands and liver cells.