Make a list of all the microorganism you have studies such as various type of bacteria, viruses, algae, fungi and protozoa. Draw their structure and write down their names below them. write one important use of each of them.....
Answers
Answer:
Most microbes are unicellular and small enough that they require artificial magnification to be seen. However, there are some unicellular microbes that are visible to the naked eye, and some multicellular organisms that are microscopic. An object must measure about 100 micrometers (µm) to be visible without a microscope, but most microorganisms are many times smaller than that. For some perspective, consider that a typical animal cell measures roughly 10 µm across but is still microscopic. Bacterial cells are typically about 1 µm, and viruses can be 10 times smaller than bacteria (Figure 1). See Table 1 for units of length used in microbiology.
A bar along the bottom indicates size of various objects. At the far right is a from egg at approximately 1 mm. To the left are a human egg and a pollen grain at approximately 0.1 mm. Next are a standard plant and animal cell which range from 10 – 100 µm. Next is a red blood cell at just under 10 µm. Next are a mitochondrion and bacterial cell at approximately 1 µm. Next is a smallpox virus at approximately 500 nm. Next is a flu virus at approximately 100 nm. Next is a polio virus at approximately 50 nm. Next are proteins which range from 5-10 nm. Next are lipids which range from 2-5 nm. Next is C60 (fullerene molecule) which is approximately 1 nm. Finally, atoms are approximately 0.1 nm. Light microscopes can be used to view items larger than 100 nm (the size of a flu virus). Electron microscopes are useful for materials from 1.5 nm (larger than an atom) to 1 µm (the size of many bacteria).
Figure 1. The relative sizes of various microscopic and nonmicroscopic objects. Note that a typical virus measures about 100 nm, 10 times smaller than a typical bacterium (~1 µm), which is at least 10 times smaller than a typical plant or animal cell (~10–100 µm). An object must measure about 100 µm to be visible without a microscope.
Table 1. Units of Length Commonly Used in Microbiology
Metric Unit Meaning of Prefix Metric Equivalent
meter (m) — 1 m = 100 m
decimeter (dm) 1/10 1 dm = 0.1 m = 10−1 m
centimeter (cm) 1/100 1 cm = 0.01 m = 10−2 m
millimeter (mm) 1/1000 1 mm = 0.001 m = 10−3 m
micrometer (μm) 1/1,000,000 1 μm = 0.000001 m = 10−6 m
nanometer (nm) 1/1,000,000,000 1 nm = 0.000000001 m = 10−9 m
Microorganisms differ from each other not only in size, but also in structure, habitat, metabolism, and many other characteristics. While we typically think of microorganisms as being unicellular, there are also many multicellular organisms that are too small to be seen without a microscope. Some microbes, such as viruses, are even acellular (not composed of cells).
Explanation:
Answer:
There are 5 basic groups of microorganisms:
a. Bacteria. Bacteria are typically unicellular, microscopic, prokaryotic organisms that reproduce by binary fission (see Fig. ...
b. Fungi: yeasts and molds. ...
c. Viruses. ...
d. Protozoa. ...
e. Algae.