Unknown A Lab Report

My unknown organism #6 is Morganella morganii, which is a gram-negative bacillus rods commonly found in the environment and also in the intestinal tracts of humans, mammals, and reptiles as a normal flora. (3, 5) This bacterium Morganella morganii, was first discovered in the 1906 by a British bacteriologist named H. de R. Morgan. (2) Despite its wide distribution, it is an uncommon cause of community-acquired infection and is most often encountered inpostoperative and other nosocomial settings. (2, 3) Morganella morganii infections respond well to appropriate antibiotic therapy; however, its

The trophozoite of N fowleri consists of an amoeba surrounded by a two-layer membrane. The cytoplasm contains free and bound ribosomes, as well as membrane-bound organelles. A smooth endoplasmic reticulum, a Golgi-like structure, mitochondria, vacuoles, and nucleus-containing nuclear envelope are present. Microfilaments create a supportive cytoskeleton. The N fowleri flagellate is pear-shaped. The cytoplasm has fewer vacuoles, and the components of a flagellar apparatus (flagellum, basal body, rootlet) are present. The spherical cyst is enclosed in a mucous-sealed porous cell wall. The cytoplasm contains enlarged mitochondria and the nucleolus is less pronounced.

Cells are the basic structural and functional unit of all living organisms. Cells are the smallest form of life of which all forms of life are composed of one or more cells. All cells come from pre-existing cells. Two different of cells exist: Prokaryotes and Eukaryotes. They are structurally and functionally different, but they share some properties.

Living cells are the functional biological building blocks of animals. They come together to form complex organic tissues, organs, and whole bodies, as well as some of these organisms themselves existing in a unicellular form. Cells vary in size and dimension, with Eukaryotes ranging from 1x10-3m to 1x10-4m in length, whilst the smaller and less structurally complex Prokaryotes exist between measurements of 1x10-4m to 1x10-7m in length. This size is contained by the cell membrane; providing surface area, whilst the three-dimensional formations offer volume to the cell, which comes from the structural sum of all constituents present in the cytoplasm.

Figure 2: A typical eukaryotic cell. A diagram of typical eukaryotic animal cell with subcellular structures labelled (Taken from Bevington, A, 2015).

All living cells on this planet fall in one of two categories. They are either going to be a Prokaryote or Eukaryote organism. Prokaryote are simplest and most ancient type of cells. It was the only form of life on Earth for billions of years before eventually giving rise to Eukaryotic cells. This composition will distinguish the differences and similarities between these two major type of cells on Earth.

This is how it looks it was found in 1979, they can swim in the water and with remarkable speed but they can not be seen with a naked eye. They fix nitrogen cell which most cells do not do.

Euglena are unicellular protists, which are organisms made of one cell that is not an animal, plant or fungus. Most have both plant and animal characteristics. For example, they often have a flagellum, which is a characteristic of animal cells, for motility and chloroplasts, which are characteristics of plant cells. They are pear shaped with a flagellum, which looks like a tail.

Methanogens are prokaryotes. A prokaryote cell does not contain a membrane-bound nucleus; they range from 0.1 to 10 µm in total cell size. Methanogens are usually either coccoid (spherical) or bacilli (rod shaped). Each cell is surrounded by a plasma membrane. The cell has no subcellular organelles, only infoldings of the plasma membrane called mesosomes. The deoxyribonucleic acid (DNA) is condensed within the cytosol to form the nucleoid. The cell walls of Methanogens, like other Archaea, lack peptidoglycan. Some prokaryotes have tail-like flagella. By rotation of their flagella, they have the ability to move through their surrounding media in response to chemicals or better known as ‘chemotaxis’. The flagella are made of the protein flagellin that forms a long filament, which is attached to the flagellar motor by the flagellar hook.

Linnaeus is now known around the world as a great biologist. Now most scientists around the world use this classification system. Biologists from around the world now meet to classify newly discovered organisms, and they use the system that Linnaeus created (“Carolus Linnaeus,” 2006).How Carolus Linnaeus was able to make something lasting for more than 120 years scientists and ordinary people don’t know (“Carolus Linnaeus,” 2006). The lasting impact left by Linnaeus affecting all of the world

The purpose of this lab was the observe and compare a plant cell and a single celled animal organism under a microscope. Out of both of the substances we looked at one of them was eukaryotic while the other was prokaryotic. The prokaryotic substance was the Elodea because the plant cell did not contain a nucleus. The eukaryotic substance was the single celled organism because the cell contained a nucleus. The similarities between animal and plant cells are that they both contain a nucleus, meaning they both are eukaryotic; they both also contain a cytoplasm, cell membrane, vacuole, and a mitochondrion. Some of these may not have been visible during the lab because our microscopes weren’t strong enough to reveal them. We compared the two different

The phylogenic tree reveals the evolutionary history of animals simply. In this phylogenic tree, humans and other animals that are familiar to us are included in phylum

In 1857, Contributions to the Natural History of the United States was published, of which the greater portion of volume one became Essay on Classification (Lurie introduction). In this text, Agassiz made comparisons between animals and their specific environments, theorized the relations between them, and proposed systems of zoological order. This work came at a time of significant discoveries as well as changes in biology. During these years other noteworthy biologists and comparative anatomists such as Huxley, Joseph Dalton Hooker, and Darwin were beginning to also assemble a framework for natural history (Lurie xxiii). Throughout Essay, Agassiz depicted clearly his standpoint as a supporter of special creationism.

There were many tiny cells, but they were very hard to see. The cells were dark and clumped together.

This organism is eukaryotic, because they are multi- celled organisms. They are symmetric on lateral sides; meaning if you were looking at the right side of a flatworm you will see that both the right and left sides are the same. They have a