A single celled organism, such as an Amoeba, has a short life because of the heavy work load and exposure to elements on all four of its sides. An Amoeba operates on one cell, so it is a lot of work and cannot get very big with just one cell. Any injury to the cell can result in immediate death to the fragile organism. Yet, it is still a life because it IS a cell, and grows, can split in half and make a new amoeba, responds to the environment, uses energy to grow and can also adapt to their environments by living in both soil and water. They use their body to surround food and “eat” it. Some amoebas have learned to cover themselves in grains of sand to protect their small bodies. Trees, cats, and single cell organisms all need oxygen, have cells, grow and reproduce, respond to stimuli, use energy, and adapt to environment so they are all living things.…
The purpose of the unknown bacteria lab assignment was to select an unknown bacteria culture and, through a series of metabolic tests, identify which bacteria genus resided in the pure culture received. A nutrient broth inoculated with bacterial culture (numbered 45, henceforth referenced as U45) was selected and a streak plate was made to isolate a pure culture for use throughout the assignment.…
It is useless for living specimens of bacteria, and inferior for non-photosynthetic protists or metazoans, or unstained cell suspensions or tissue sections. Here is a not-so-complete list of specimens that might be observed using bright-field microscopy, and appropriate magnifications (preferred final magnifications are emphasized). Prepared slides, stained - bacteria (1000x), thick tissue sections (100x, 400x), thin sections with condensed chromosomes or specially stained organelles (1000x), large protists (100x). Smears, stained - blood (400x, 1000x), living preparations (wet mounts, unstained) - pond water (40x, 100x, 400x), living protists (40x, 100x, 400x occasionally), algae and other microscopic plant material (40x, 100x,…
There was several amoeba shaped cells that varied in size. There were five somewhat darker areas that were circular in shape. There were also three large, oddly shaped areas that had very distinct edges.…
Today we will be taking a journey through the human body. We will be injected into the femoral vein of a healthy, 28 year old female named Corrin. We have received previous alert that there is a bacterium invading Corrin’s lower lobe of her left lung. As we go on this special voyage, we will get to document this invasion in regards to how infections attack the human body. To accomplish all of this, we must first miniaturize ourselves, along with the sub that we will be taking this journey on, down to just eight microns long! At the end of this voyage, we will exit out of the nose. Get ready for an interesting ride!…
Each of the following parasites has an intermediate host as part of its life cycle EXCEPT:…
* Disease-carrying creatures: Harmful microbes can enter your body through close contact with infected creatures.…
Microbes, despite being the most abundant organisms on Earth, were relatively inconspicuous to humans until the 17th century. These life forms have evolved their mechanisms of growth and survival in order to face the harsh conditions of the planet. While it often seems like two types of microbes, viruses and bacteria, have only impacted human life by increasing the fatality rate, Dorothy H. Crawford’s book, Deadly Companions, refutes this claim. Crawford argues that there are more important effects involved with microbial presence, as they have thrived during specific stages of human cultural history and have had a major impact on previous generations that have become lasting developments. More specifically, microbes have forced humans, the…
A news article from the Associated Press September 20, reports on a brain-eating amoeba bacteria found in the water supply in St. Bernard Parish in New Orleans. It was reported that this bacteria had killed a 4 year old Mississippi boy who had visited the area. Some believed the water was contaminated from Katrina in 2005, but it was not detected in the water supply only in individuals household water pipes. This bacteria can be found in fresh water supplies and most cases are caused this way. Water supplies were treated with high amounts of chlorine. It is reported that investigators may never know how it got into the water pipes.…
For how wide spread of a sampling of bacteria we obtained, the actual colony observations didn't differ drastically. All samples, including the control, were in and around the same color spectrum in lightish brown coloring. The control, stair railing and neath of the fingernail were all circular in form and the margin for those three was also entire and all elevations were convex. The diameter of the actual colonies was where the most diverse observations occurred. The percentage varied from one to fifty percent and the millimetre size also varied from less than 2mm to about 5mm.…
View 6 more prepared slides by using the oil immersion lens. Follow steps 1-5 above to locate, center, and focus each slide at 10x and 40x.…
An aerotolerant anaerobe is a microbe which will survive but will not grow in the presence of oxygen.…
Disease has been the number one cause of death throughout history. Our textbooks reference various plagues, epidemics, and pathogens that have wiped out incredible swaths of people. But in our more recent years,…
There many different causes of disease, some of these are caused by micro-organisms including, bacteria, viruses, fungi, and parasites.…
Colonies of S. warneri are usually tan, yellow and about 2-4mm in diameter after 48…