Prokaryotic cells

Prokaryotes have existed from 3.5 billion years ago when they became one of the first organisms to inhabit Earth. Prokaryotic cells are unicellular cells and are typically smaller than eukaryotic cells. They reproduce through binary fission. Prokaryotic cells have a range of shapes- spherical, rod-shaped and spiral. Its key feature is the cell wall, which allows strength to protect and prevent the cell from bursting or shrinking; it’s

dinoflagellates and green algae. (Pommerville, 2014, p. 185)”. Both processes have different stages to create energy. Cellular respiration has aerobic and anaerobic processes. In the aerobic process, enzymes break down glucose in “presence of oxygen to produce cell energy”. The stages in cellular respiration include glycolysis, transition, Krebs cycle and the electron transport system. Glycolysis occurs in the cytoplasm. During this stage, there is a “conversion of glucose into pyruvate (Pommerville, 2014, p

be the precursors to eukaryotic cells. One of the other defining characteristics of eukaryotic cells that allow for multicellularity to occur is the presence of a complex

Prokaryotic are organisms whose DNA is not confined within a membrane-enclosed nucleus. Prokaryotic organisms are single, but some prokaryotic organisms are multicellular. Eukaryotes are organisms who cells are organized into complex structures by internal membranes and a cytoskeleton. (Cundy, 2012) The most characteristic membrane bound structure is the nucleus. Animals, plants, fungi, and protists are eukaryotic. Prokaryotic organisms are typically between 0.1 to 5.0 um in size while Eukaryotic

Introduction The cell theory is composed of three ideas from three different German scientists. In 1838, scientist Mattias Schlieden said that all plants were made from cells. One year later in 1839, scientist Theodor Schwann said that all animals were made from cells. In 1855, scientist Rudolf Virchow said that all cells come from other cells. These three ideas were put together to form the cell theory. The cell theory states that all living things are made of cells, cells are the basic units

different microscopic cells that join to shape who they are. Cells are considered the basic building blocks of living things and have many parts, each with a different function(1). The nucleus within a cell is where all the genetic information is stored. Within the nucleus, there are twenty-three long threads of DNA known as chromosomes. Each chromosome contains heredity information to direct synthesis of proteins. Cells in humans and plants are known as eukaryotic and cells in bacteria are known

Cell structures are a very unique component in life. Cells have the ability to accomplish many tasks. Theses tasks may include identifying genetic information, the gossamer endoplasmic reticulum subway system and the fibril laced cytoskeleton. All of these parts are needed in order to have life. Before all of this occurred, we developed a cell theory. The cell theory was basically used to explain how every living thing is made out of cells. In the cell theory there were three principals that it

process of replication of a Eukaryote cell and Prokaryote cell. There are also differences in both processes. The most notable difference would have to start with the cell themselves, which may add to additional differences in the processes. A prokaryote is a more simplistic cell with less DNA and a Eukaryote cell is much more complex with vast amounts of DNA. The replication process in the end has the same goal and that is to copy DNA and pass it along to a new cell. The processes begin in a similar

provided to analyze the different size of the different cells and organisms Lab Summary (5p) With some of the cells being visible to the untrained eye, others are smaller and are not as easily seen, unless you have the Microscope. Different cells use various organelles to get around however, others do not. Lab Answers (10p) A. Estimate the size of: 1. An E. Coli cell. _____1.8um___________ 2 A mitochondrion. _____3.2um__________ 3. A Red Blood cell. ____8um_________ 4. A hepatitus virus. _____.045um__________

theoretical understanding that the eukaryotic cell came to be from a prokaryotic cell. This idea was brought by Lynn Margulis, who studied the structures of cells in the late 1960’s. While studying the cells, she realized the close resemblance mitochondria, as well as the chloroplasts looked compared to bacteria. Scientists became aware of the similarities at hand and suggested that mitochondria “began from bacteria that lived in permanent symbiosis within the cells” and that chloroplasts eventually “evolved