Question

Which type of cell would probably provide the best opportunity to study lysosomes?
A) Muscle cell
B) Nerve cell
C) Phagocytic white blood cell
D) Bacterial cell

Answer 1

Hint:Lysosomes are sac like structures found in cytoplasm. These are single membranes and contain enzymes, which are capable of breaking down organic material which was taken up by cells through endocytosis.

Complete answer:
>Phagocytic white cells have principal activity to engulf foreign substances entered in the body through phagocytosis and have active lysosomal apparatus. There are some white cells which can show phagocytic activity such as-Neutrophil, Monocyte.
>“Neutrophils” ingest and kill the microbes by phagocytosis.Neutrophils are the main cellular constituents of pus and therefore sometimes referred to as pus cells. Neutrophils also stimulate the production of interferons, antiviral substances.
>“Monocytes” are highly motile and phagocytic cells and remain in the blood only for about 3 days. In tissue spaces, monocytes transform to macrophages such as: histiocytes in connective tissue; microglia in the brain;Kupffer cells (perisinusoidal macrophages) in the Liver, alveolar macrophages in the lungs;macrophages of lymph nodes, spleen and bone marrow; osteoclasts in bone
>Muscle cells can not help in studying lysosomes because it does not have lysosomal apparatus and is rich in sarcoplasmic reticulum.
>Nerve cell has Nissel’s granules only present in them.And at last the bacterial cell is a prokaryotic cell which clearly states that it does not have any lysosome in them.

Hence, the correct answer is option (C) i.e. Phagocytic white blood cell.

Note:The functions of lysosomes are Extracellular digestion,digestion of foreign material and cellular digestion; repairs cell membrane and destroys cells after it has died,hence also called suicidal bags. These are formed by the fusion of vesicles from golgi apparatus and endosomes.