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A Closer Look at Biology, Microbiology, and the Cell by Sherman Hollar

By Sherman Hollar

Formalizing examine of the flora and fauna could appear like a frightening activity contemplating the sheer breadth and diversity of residing issues that inhabit the planet. From the microscopic organisms within the worlds so much distant destinations to these within the human physique, facts of the difficult constructions and mechanisms that let existence are ubiquitous and new discoveries consistently exhibit new probabilities that call for to be tested. This quantity surveys the multitude of matters that include the sector of biology and comprises an summary of the advance of biology, microbiology, and cellphone idea.

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Additional resources for A Closer Look at Biology, Microbiology, and the Cell (Introduction to Biology)

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Plastids have their own DNA. It is distinct from the DNA found in the cell’s nucleus and is replicated and inherited independently. Plastids manufacture some of their own proteins but rely on the cell’s DNA and ribosomes to synthesize others. Mitochondria Often called the powerhouses of the cell, the sausage-shaped mitochondria produce the energy needed by the cell to function. Food molecules that pass into the cytoplasm are taken into the mitochondria and oxidized, or burned, for energy. Like plastids, mitochondria have an inner and an outer membrane.

For example, in the United States some microbiologists are employed by the federal government to inspect sewage-treatment facilities, hospitals, and food-production plants to protect the public health. Large federal agencies, such as the National Institutes of Health, the Department of Agriculture, and the Centers for Disease Control also employ microbiologists to investigate and monitor the action of microbes in our environment. There are also many commercial positions available to microbiologists.

For instance, the field of immunology, which studies the body’s reaction to microbes, is closely aligned with microbiology. In addition, a whole new field of molecular biology has emerged. Today molecular biologists study the properties of cellular structures such as proteins and nucleic acids. Microbes are widely spread over the surface of the Earth and play a crucial role in ecology. Soil and water contain high concentrations of bacteria and molds (two types of microbes), and the surface of every human body is covered with a unique microbial flora.

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