GENERAL HISTOLOGY

Detailed explanation-1: -Different types of cells have different amounts of some organelles. For instance, cells that use a lot of energy tend to contain large numbers of mitochondria (the organelle responsible for harvesting energy from food). That’s why very active muscle cells are often full of mitochondria.

Detailed explanation-2: -Different organelles play different roles in the cell-for instance, mitochondria generate energy from food molecules; lysosomes break down and recycle organelles and macromolecules; and the endoplasmic reticulum helps build membranes and transport proteins throughout the cell.

Detailed explanation-3: -An organelle is a specific structure within a cell, and there are many different types of organelles. Organelles are also called vesicles within a cell. And they really have a function that’s important, because we need to compartmentalize all the functions within the cell.

Detailed explanation-4: -Cells of various types have different functions because cell structure and function are closely related. It is apparent that a cell that is very thin is not well suited for a protective function.