8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Match the following organelles with the correct function/description: a. Plasma Membrane b. Nucleus c. Nucleolus d. Endoplasmic reticulum e. Golgi Apparatus f. Lysosomes g. Vacuoles ▬▬▬▬▬ ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ h. Mitochondria i. Chromosomes j. Ribosomes k. Centrioles 1. Cilia m. Flagella n. Cell wall Composed of DNA-protein complex; contains genes Granular body within nucleus; site of ribosome synthesis Granular organelles composed of RNA & protein; synthesize proteins Large structure surrounded by double membrane; location of DNA Long projections; cellular locomotion Membrane boundary of cell; regulates cell transport Membranous sacs; contains enzymes to digest materials Membranous sacs; transport and store water & other materials Multiple-layers of cellulose; structural support Network of internal membranes; site of membrane lipid & protein synthesis Sacs containing 2 membranes; site for cellular respiration Short hair-like structures used for movement. Small hollow cylinders; involved in cell division Stacks of flattened membrane sacs; modifies, packages & secretes proteins

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Structure and Composition of Cell Membrane

Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.

Cell Membrane

The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment. 

Prokaryotes vs Eukaryotes

The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.