Question

Lysosomes are the reservoirs (store houses) of _______
A. Hydrolytic enzymes
B. Oxidative enzymes
C. Secretory glycoproteins
D. RNA and proteins

Answer 1

Hint: A lysosome is a single membrane bound cell organelle which consists of enzymes that digest cell debris, foreign particles or dead or non functional organelles. It can also digest the waste produced by the cellular activities.

Complete answer:
Lysosomes are only found in animal cells; a human cell contains around 300 of them. Lysosomes are generally very small, and they have a simple structure. Lysosomes are sphere shaped sacs filled with hydrolytic enzymes that have capability to break down many types of biomolecules. Lysosomes store the hydrolysing enzymes of the cell. The important enzymes are acid phosphates, sulfatases, proteases, peptidases, nucleases, lipases and glycosidases. For example, proteases breakdown proteins, and nucleases break down nucleic acids. Amylases break down starches into sugars. In addition lysosomes have a role in phagocytosis, which is when a cell engulfs a molecule in order to break it down; it is also known as cell eating. For example, the white blood cells called phagocytes ingest invading bacteria in order to break it down and destroy it, and the bacteria is enclosed by a vesicle that lysosomes fuse with. These lysosomes then break down the bacteria. Lysosomes are also known as suicidal bags of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials.. Lysosomes are the reservoirs of hydrolytic enzymes. Lysosomes are also called scavengers of the cells.

Note: Lysosomes have a role in transporting molecules within the cell. Lysosomes contain over 60 different enzymes that allow them to carry out these processes. Some inherited metabolic disorders can cause defects in the proper functioning of lysosomes.