There are five primary shapes of bacteria found in nature: coccus, spirillum, vibria, bacillus and spirachaetes. These shapes can be found in a variety of configurations that help identify the bacterial species.Know More
Bacteria are single cell organisms found all over Earth, and they group together in colonies. It is estimated that the number of bacterial cells inside the human body is 10 times greater than that of human cells. Most of these bacteria are located in the intestines and colon, where they break down carbohydrates and aid in the absorption and digestion of nutrients. Though these bacteria are not usually harmful to humans, they are capable of acting as opportunistic pathogens during times of compromised immune function. Most bacteria living in the human gut are anaerobes, which means that they thrive in environments that do not offer access to oxygen.
In order to reproduce, bacteria go through a process called binary fission, in which a single cell divides into two identical daughter cells. This process replicates the DNA of bacteria, and in certain species, can occur as frequently as every 20 minutes. The capacity for such rapid reproduction is the reason humans become ill so quickly when infected with an opportunistic bacterial pathogen.Learn more about Biology
Symmetry in nature is the balanced distribution of complementary parts of the natural world. This balanced distribution is exemplified in the bilateral symmetry of most vertebrae, whose left and right sides are mirror images of one another.Full Answer >
The purpose of streaking bacteria for isolation is to create a region in which the bacteria are so dilute that when each bacterium touches the surface of the agar, it is far enough away from other cells so that an isolated colony can develop. This allows for isolation of multiple organisms.Full Answer >
The bacillus Subtilis gram stain is a way to test if a patient is infected by the bacteria. Bacillus Subtilis is an endospore.Full Answer >
Archaea, bacteria, Protista, fungi, viruses and microbial mergers are divisions that contain microorganisms. Most microorganisms are single-celled organisms. Baker's yeast and fission yeast are unicellular microorganisms.Full Answer >