GENERAL HISTOLOGY

Detailed explanation-1: -Cell organelles are minute structures found in the cytoplasm of a cell for performing specific life functions. Cell organelles include mitochondria, endoplasmic reticulum, golgi complex, lysosomes, centrosomes, chloroplast, ribosomes and vacuoles.

Detailed explanation-2: -In addition to the nucleus, eukaryotic cells have many other organelles, including ribosomes and mitochondria. Ribosomes are present in all cells.

Detailed explanation-3: -The mitochondrion is a double membrane-bound half-independent organelle that shoulders most of the metabolic activities in the cell.

Detailed explanation-4: -A cell is surrounded by a membrane, which has receptors on the surface. A cell has several small structures inside it, including the nucleus, mitochondria, endoplasmic reticulum, and Golgi complex. These all have specific functions in the cell.

Detailed explanation-5: -All living cells contain ribosomes, tiny organelles composed of approximately 60 percent ribosomal RNA (rRNA) and 40 percent protein. However, though they are generally described as organelles, it is important to note that ribosomes are not bound by a membrane and are much smaller than other organelles.