Help yourself to learn the anatomy of bacterial cell using these free and printable labeled cell diagrams! These 101 Diagramss are designed to guide you in studying the cell structure of bacteria. When observing bacteria with microscope, it is not difficult to compare bacterial cell shapes and arrangements. Bacteria are prokaryotes, lacking well-defined nuclei and membrane-bound organelles, and with chromosomes composed of a single closed DNA circle. They come in many shapes and sizes, from minute spheres, cylinders and spiral threads, to flagellated rods, and filamentous chains. Take a look at the following cell diagram of a bacterium.
The bacterial cell diagram above shows the structures of bacterium anatomy. Bacteria are found practically everywhere on Earth and live in some of the most unusual and seemingly inhospitable places. Their size ranges between 0.2 µm and 700 µm in diameter, with the normal range of about 1-5µm in diameter. Bacteria are about 10 times smaller than eukaryotic cells, which leads to their unique features of growth. Small cells have more surface area relative to cell volume than large cells do, hence, they have higher surface-to-volume ratio (S/V ratio). More cell structure anatomy diagrams are posted below.
The nucleus is an inner body filled with the thread-like chromosomes in the genes which are the hereditary determinants of character. The cell wall of bacteria protects the cell from osmostic shock and physical damage. In addition, it also confers rigiditiy and shape of bacterial cells. Although bacterial cell walls all consist of peptidoglycan, also known as murein or mucopeptide, they differ in certain properties in two groups of bacteria, namely gram-negative and gram-positive.
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