Question

Lysosomes are formed by?
A. Golgi bodies
B. Endoplasmic reticulum
C. Mitochondria
D. Cell wall

Answer 1

The cell contains several subunits that are the functioning units and are known as the cell organelles. The cell organelles are specific in their functions and contribute to the various functional processes of the cell. Different cell organelles present in the cells are mitochondria, ribosomes, endoplasmic reticulum, Golgi bodies and lysosomes.

Complete answer:
-A lysosome is a membrane bound organelle that is found in many animal cells. They are shaped as spherical bodies and are known to contain the hydrolytic enzymes. The hydrolytic enzymes are responsible for the hydrolysis or breakdown of the kind of the molecules.
-The main function of the lysosomes is that they act as the waste disposal systems of the cell by digesting in used or unwanted materials present in the cytoplasm. The main activity of the lysosomes is through the activity of the lysosomal enzymes. These enzymes are used to break down the peptides, nucleic acids, carbohydrates and lipids.
-The lysosomes are produced from the Golgi bodies from the transport vesicles. They are formed by the fusion of transport vesicles which are budded from the trans Golgi network. The endosomes contain molecules taken up by endocytosis at the plasma membrane and in due course develops into lysosomes through the pinching activity. The formation of lysosomes follow a secretory as well as an endocytic pathway. Plasma membrane or the cell membrane is the layer of the cell that encloses the cytoplasm and cell organelles. The outside materials are taken up into the cells through the process of endocytosis and are digested or broken by the lysosomes.
-The endoplasmic reticulum forms a series of flattened sac-like structures and plays an important role in the synthesis, folding and transportation of proteins.
-Cell walls are present in the plant cells and are present outside the cell membrane. It presents a structural and support to the cell.
-Mitochondria are responsible for the generation of the energy molecules of the cell in the form of ATP. It is known as the powerhouse of the cells.

Hence, the correct answer is option (A).

Note: Lysosomes are small or large vesicles that contain hydrolytic enzymes and proteins. The lysosomes are produced from the Golgi bodies. It acts on the breakdown of the materials that are produced within the cells and helps in the hydrolytic action on various biomolecules.