Both cilia and flagella found protruding from the cell body on the surface of eukaryotic cells are made of many microtubular bundles. Cilia are hair-like structures that protrude from the cells surface in eukaryotic cells they are covered by a plasma membrane. They are formed from a stable bundle of microtubules; these grow from an area in the cytoplasm called the basal body. Microtubules are made of a protein called tubulin, alpha has a slightly negative charge and beta has a slightly positive…
The subject that is being read is Prokaryotes. An example of a prokaryote is bacteria. Bacteria traits are usually for a genus and are extremely important to the cell. Bacteria come within various shapes, such as spirals, cocci, rods, etc. These shapes are very useful for the prokaryotes. Prokaryotes do not have a developed nucleus instead the cell has a nucleoid which is also known as a nuclear bound and it lacks the cytoplasm membrane. Prokaryote structures consist of the flagella, pili, and…
Section Two Assignment 1. Timeline of the evolution of cells. • 4.6 Billion years ago: The formation of Earth is believed to have transpired around 4.6 billion years ago. • 3.5 Billion years ago: Ancient fossils from around this time period provided evidence of a bacteria-like organisms known as Prokaryotes. This ancient cell was first founded in the 1970’s in among fossilized rocks from Australia and contain no nucleus. • 2 Billion years ago: A more complex prokaryote arises with a skeleton…
The monera kingdom consists of primitive organisms which are very small in size and are single celled. These organisms generally consist of prokaryotes or eukaryotes, meaning species such as bacteria, archae bacteria, mycoplasma and cyanobacteria are included. The protista kingdom consists of aquatic, single celled eukaryotes. These eukaryotes are generally photosynthetic, including diatoms, golden algae, and protozoans. The Mycota kingdom (kingdom fungi) consists of mycelium, with hyphae bodies…
are the Prokaryotae and the Eukaryotae (Woese et al 1990; Waggoner & Speer 1998) The Prokaryotae consist of two domains, the Archaea and the Bacteria, and have one kingdom of each domain. Meanwhile the Eukaryotae have only one domain, Eukaryota or eukaryotes, and was divided into four kingdoms that are animals, plants, fungi and protists. Figure 1 is shown the three domain of life…
Ribosomes could be found around the cell or next to the endoplasmic reticulum. Cytoplasm is made up of cytosol. In prokaryotes all the cell content is within the cytoplasm whereas with eukaryotes the nucleus is separate from the cytoplasm. The cytoplasm is about 80% water and usually colorless (4). Eukaryotes only contains the following: Mitochondria are found in both plant and animals cells and are shaped like a rod. A mitochondrion contains outer and inner membranes composed of phospholipid…
The mitochondria is one of the most interesting components of the eukaryotic cell. Endosymbiosis is the term modern scientists use for how the mitochondria came to be. Symbiosis translates from Greek to English as “living” “together.” Constrantin Mereschkowsky, known as the founding father of the theory of endosymbiosis, was one of people who started the concept of endosymbiosis, although he had called it “symbiogenesis,” defining it as: “the origin of organisms through the combination and…
Organisms are composed of countless eukaryotic cells each with a set niche to make sure the body stays balanced. Form their inception cells are programmed like a computer to provide necessary functions for a person’s body. Along the lines of being like a computer all cells need power to operate. Inside the cell its organelles help the cell attain the fuel it needs to operate. Within these group of organelles is what has been aptly named the, “power plant”, of cells for it takes nutrients and…
15. If true chemical bonds bind atoms together to form a molecule through electron sharing, what is special about a Hydrogen Bond that makes it not a true chemical bond? My Answer: B) Unequal distributions of the protons generates partial charges Correct Answer: A) Electrons are shared unequally between different atoms Why my answer was wrong: I did not realize that the answer says, “protons,” instead of, “electrons.” The protons are not distributed from the nucleus, because if they were, the…
MITOCHONDRIAL SRUCTURE Mitochondria can be seen in the light microscope, but their detailed internal structure is only revealed by electron microscopy. As ubiquitous, semi-autonomous cellular organelles, mitochondria are separated from the cytoplasm by the outer and inner mitochondrial membrane.The outer membrane is porous and freely traversed by ions and small, uncharged molecules through pore-forming membrane proteins (porins), such as the voltage-dependent anion channel VDAC [19]. Any larger…