Essays Tagged: "Cell nucleus"

Cell City

hydraulic dam, Vacuole, which is in the city. The entire city is enclosed by a large wooden fence, Cell Membrane, only the postal trucks (and citizens with proper passports) are allowed outside the city.

(1 pages) 18 0 3.0 Oct/2004

Subjects: Science Essays

Nucleus, Cytoplasm And Cell Membranes

The nucleus, cell membranes and cytoplasm are all related to one cell or another in a specific way shape or form. ... ell or another in a specific way shape or form. These are what I think are the most important micro cells that support other cells in a way that only pertains to there special traits in functions to t ... his contains all of the protons and neutrons also the negative electrons that are used to keep that cell in working function and to make it do it's function properly and effectively.The nucleus is the ...

(1 pages) 761 0 0.0 Sep/2001

Subjects: Science Essays > Biology

Impact of Light and Electron Microscope on Cell Theory

e development of the light microscope many scientists were able to view microscopic objects such as cells. The first to accomplish this was Robert Hooke when he used a light microscope to observe a th ... e a thin slice of cork. Hooke observed that the cork was made of tiny structures of which he called cells. Hooke was in fact looking at the cell walls of dead plant cells that make up the cork. After ...

(2 pages) 10309 0 0.0 Mar/2009

Subjects: Science Essays > Biology

Redefining Mortality: An Outlook on Human Cloning

ery scientific complex procedure. According to Leon R. Kass, the process begins by obtaining an egg cell from a female of mammalian species. Then the nuclear DNA is removed from the egg cell to produc ... s removed from the egg cell to produce an enucleated egg. After that, the nucleus of an adult donor cell is inserted into the enucleated egg. Chemicals or electric currents are then used to stimulate ...

(5 pages) 1482 0 5.0 Apr/2009

Subjects: Science Essays > Genetics & Genome Projects

The Structure of DNA

yribonucleic acid, is the hereditary material in humans and almostall other organisms. Nearly every cell in a person's body has the same DNA. Most DNAis located in the cell nucleus (it is called nucle ... e reconstructed for each based on the sequence of the old strand.Meiosis is the process of making a cell that has the same number of chromosomesas the parents. In order to keep the same number, they e ...

(4 pages) 81 0 0.0 May/2009

Subjects: Science Essays > Biology

The Clone Technology

nique, which refers specifically to the production of genetically identical individuals via somatic cell nucleus transfer (American Medical Association, 2008). It is the process of creating an identic ... ps that made cloning possible. Then in the 1880s, Weissman stated that the genetic information of a cell diminishes with every cell. Since then many developments have been made in this field. Hans Spe ...

(5 pages) 44 0 0.0 Mar/2010

Subjects: Science Essays > Technology

Usher Syndrome. What Causes It. How It Happens

at is DNA. DNA, also known as deoxyribonucleic acid, is a molecule that makes up chromosomes in the cell nucleus. It is made of four bases adenine (A), thymine (T), guanine (G), and cytosine (C). Aden ... ns can occur in many ways. Sometimes there can be a copying error when the DNA is replicated during cell division. Sometimes the copy is not quite perfect. That small difference from the original DNA ...

(3 pages) 27 0 0.0 May/2010

Subjects: Humanities Essays > Health & Medicine > Diseases

The death

otal magnification (how to calculate it-lens x objective),objective lens (types and what they do)3. Cell Theory: 6 tenets of Cells: (Who first proposed them?)* All known living things are made up of c ... ings are made up of cells.* The cell is structural & functional unit of all living things.* All cells come from pre-existing cells by division. (Spontaneous Generation does not occur).* Cells cont ...

(2 pages) 1 0 0.0 Oct/2014

Subjects: Art Essays > Design Arts

Cell structures

ientist Robert Hooke created a microscope and saw "little boxes" in a slide of cork which he called cells. (1665)Anton van Leeuwenhoek Dutch scientist used a microscope and discovered living creatures ... scope and discovered living creatures in a pond water. He called them animalcules, they were single-celled organisms. (1675)Matthias Schleiden, concluded that every part of the plant was made of cells ...

(2 pages) 2 0 0.0 Nov/2014

Subjects: Science Essays > Biology