Essays Tagged: "Cell (biology)"

A Not Entirely Benign Procedure... Four Years As A Medical Student

l. During the first year, Perri stated that she "focused on basic biology, anatomy, physiology, and cell biology", which gave me insight to the courses I myself will be experiencing when I become a me ... or I become.In conclusion, A Not Entirely Benign Procedure... Four Years As A Medical Student, an excellent novel. The author was a perfect source to describe some of the hardships that are encountere ...

(1 pages) 65 1 3.4 Mar/2002

Subjects: Humanities Essays > Health & Medicine

Biology Notes about Microscopes, Scientists, and Cells.

tle boxes." These little boxes first reminded of the little rooms monks lived in, so he called them cells. Hooke observed the same pattern in the stems and roots of carrots and other plants. What Hook ... n the stems and roots of carrots and other plants. What Hooke still did not know, however, was that cells are the basic units of living things.Ten years later, the Dutch scientist Anton van Leeuwenhoe ...

(5 pages) 118 2 4.7 Aug/2003

Subjects: Science Essays > Biology

Biology notes on viruses.

difficulty. Scientists concluded that the infectious agent must be smaller than a typical bacterial cell. After further investigation, the scientists found that the agent could reproduce only inside t ... dings, scientists were able to disassemble TMV and confirm his conclusion. TMV is a chemical, not a cell. Each particle of TMV is made of only two kinds of molecules: the nucleic acid RNA and protein. ...

(5 pages) 79 1 3.2 Aug/2003

Subjects: Science Essays > Biology

Bacterial Cell Replication and cell changes/stages summarized.

Bacterial Cell ReplicationBinary fission is the normal method of replication among bacteria; in this method of ... the normal method of replication among bacteria; in this method of cell replication, the bacterial cells simply increase their cell mass slightly, replicate their cellular genome (DNA) and several ot ... ss slightly, replicate their cellular genome (DNA) and several other cell components, and then each cell divides equally into two cells.Binary fission as a method of cell replication is very efficient ...

(4 pages) 59 1 2.8 Nov/2003

Subjects: Science Essays > Biology

Assess the impact of technology on the development of cell theory. In particular, include the development of the microscope and give evidence where possible.

e discovered from that basic piece of technology. The microscope played the key role in discovering cells, and as it advanced with technology, so too did the cell theory.In 1665, scientist Robert Hook ... rk. He noticed that the cork was divided up into hundreds of tiny little compartments that he named cells. Hooke was the first person to acknowledge cells, and this was when the cell theory began.In 1 ...

(2 pages) 42 0 4.5 May/2004

Subjects: Science Essays > Biology

Animal Cells

Animal CellsAnimalCellsMy cell is the animal cell It really depends on which cell you are talking about - d ... lly depends on which cell you are talking about - different cells do different things. Such as skin cells. They form a barrier on the outside of the body which protects the organs and tissues inside. ... damaged by bumps and knocks and also prevents bacteria and viruses from getting into your body. The cells structure, contains the CellMembrane keeping the cell together and controlling what substances ...

(2 pages) 28 0 4.0 Nov/2004

Subjects: Science Essays > Biology

Bacteria

* Bacteria- Bacteria are cells that are big enough to be seen under a light microscope.- Bacteria are found everywhere: - in ... d others are harmful that cause diseases such as pneumonia, tuberculosis, scarlet fever.- Bacterial cell: has a cell wall, cell membrane, a loop of DNA.Cell WallCell MembraneLoop of DNA*Bacterial grow ... eria can be grown in sterile conditions in the laboratory.- A colony of bacteria starts with just 1 cell.- It divides into 2 cells, then the 2 divide into 4, then the 4 divide in to 8, then the 8 divi ...

(2 pages) 26 0 1.0 Dec/2004

Subjects: Humanities Essays > Health & Medicine

Animal-Human Hybrids

al-human-hybrids.At the Shanghai Second Medical University in China embryos were formed using human cells fused with rabbit eggs. The embryos were destroyed soon after there conception and their stem ... s. The embryos were destroyed soon after there conception and their stem cells were collected. Stem cells can be used to grow almost any bodily tissue and offers great scientific potential for the dev ...

(1 pages) 12 0 3.0 Mar/2005

Subjects: Humanities Essays

Cell Biology notes

CELL BIOLOGY NOTES:Biological cell There are many single cells and many multi cellular organi ... al cell There are many single cells and many multi cellular organisms like us. Single cells have organelles that help them function Organelles:· Mitochondrion: cell ... chondrion: cell organelle involved in respiration· Cytoplasm: fluid that surrounds a cell that forms the vacuole· Golgi Apparatus: processing area for the glycoprotein&mi ...

(4 pages) 52 0 3.0 Apr/2005

Subjects: Science Essays > Biology

AP Biology Meiosis Essay

Meiosis is the process in sexually reproducing organisms where cells divide.The cells produced during meiosis have half the chromosome number as theoriginal cell. ... number as theoriginal cell. There are two cell divisions in meiosis, meiosis l and meiosisll. These cell divisions produce 4 hapolid daughter cells. Haploid cells containonly one set of chromosomes, w ... s.In meiosis the interphase l the chromosomes replicate and the centrosomeduplicates in one diploid cell. Diploid cells have two sets of chromosomes, theyreceived one from each parent. During prophase ...

(1 pages) 44 1 3.5 Jan/2006

Subjects: Science Essays > Biology

The Activity of Sodium-Potassium Active Transport with respect to the Concentration of Cytoplasmic Sodium

, sodium potassium transportation has been most widely studied for it is expressed in virtually all cells of higher organisms (Austgen 2003).The Na,K-ATPase, a P-type ATPase family member (Kaplan 2002 ... t and β-subunit (Kaplan 2002). Different ATPases vary with their α-subunit. Depending on cellular environment and cell function, there are four α-subunit isoforms: α1, α2, ...

(3 pages) 19 0 0.0 Mar/2006

Subjects: Science Essays > Chemistry

Biology Grad Standard

s report we are going to tell you about the life in Troy Ville, and how it relates to the life of a cell. Well the most important thing that's in Troy Ville is probably the City Hall. ... . This acts as the nucleus and chromatin. Around the town there are high mountains which serve as a cell wall. Inside of this we have a fence which protects use from a lot of things that try to distur ...

(1 pages) 295 0 0.0 May/2001

Subjects: Literature Research Papers

AIDS: Complete Summary

Viruses are the smallest and simplest type of parasite. They enter the body and take over a living cell just to reproduce. When these viruses do take over these cells, they may cause great damage or ... e viruses do take over these cells, they may cause great damage or even completely kill the invaded cell. AIDS, which stands for Acquired Immunodeficiency Syndrome, is caused by a lethal virus ...

(4 pages) 43 0 0.0 Jul/2001

Subjects: Humanities Essays > Health & Medicine > Diseases

Basic discription of microbiology

, viruses, fungi, and protozoa.Prescott, Harley & Klein (1990) describe bacteria as prokaryotic cells (cells that lack a true membrane enclosed nucleus). Bacteria are both small and simple in stru ... ria.Engelkirk & Burton (1979) state that bacteria can reproduce asexually by simple division of cells and some bacteria reproduce sexually by conjunction. A bacterium is a waste producer of produc ...

(8 pages) 14 0 0.0 Feb/2008

Subjects: Science Essays > Biology

Bio Outline

BIOLOGY 220 OUTLINE SECTION II Text: Essential Cell Biology I. Opening Comments (Chapter 3) A. Life creates order out of disorder through a never-e ... This is Metabolism and the ability to Metabolize C. Most of the chemical reactions required by the cell would not occur at physiological conditions D. Control of these reactions is achieved by specia ... portion of a systems energy that can perform work given constant T throughout system (e.g., living cell) 2. Total free energy of a system (G) is define by this equation G = H - TS a. H = total energy ...

(21 pages) 42 0 0.0 Feb/2008

Subjects: Science Essays > Biology

Artificial Retina

ecognition, motion direction, and colors and sends it to the brain. There are approximately 800,000 cells in the retina that acts as the eye's photo-detectors, called rods and cones. In an individual ... s the eye's photo-detectors, called rods and cones. In an individual with "normal" vision, ganglion cells interpret messages from these cells. The ganglion cells then send these messages to the brain ...

(2 pages) 1249 0 0.0 Feb/2008

Subjects: Science Essays > Biology > Human Biology

The Genetics of Drosophila Fruit Flies

inance over the white eyed flies.MethodsThe hypothesis was tested at the Adams State College in the Cell Biology/Genetics laboratory room. The overall study took three month. The experiment was begun ...

(3 pages) 39 0 3.0 Feb/2008

Subjects: Science Essays > Genetics & Genome Projects

Biotechnology Throughout History - Food Preservation Research one type of biotechnology and give a detailed report on two types commonly used today.

nactive therefore resulting in us preserving our food for even longer than normal.All food contains cells; and these cells have some sort of water in them. Because food has a lot of water in it, it ta ... freeze, ice crystals start to form. When the ice crystals become too big, it will break through the cells walls which eventually affects. When you take the food out and let it defrost, liquid will dra ...

(3 pages) 27 0 5.0 Apr/2008

Subjects: Science Essays > Biotechnology

Application of Enzymes

bmitted to: Dr. Jyoti MaharjanBIOT 203 (Biochemistry)10th November 2006Application of EnzymesLiving cells and tissues require basic nutrients and essential substances to divide, grow and perform their ... ze or accelerate chemical reactions. Enzymes are biochemical catalysts. Almost all processes in the cell need enzymes in order to occur at significant rates.Enzymes have variety of application. Trevan ...

(6 pages) 46 0 5.0 May/2008

Subjects: Science Essays > Biochemistry

The Pros and Cons of Stem Cell Research

The Pros and Cons of Stem Cell ResearchAdvancement of the stem cell research is welcomed today, as the need for gene ... Advancement of the stem cell research is welcomed today, as the need for generation of new healthy cells for different muscles and nerve tissues is great and never seems to be ceasing. Stem cell rese ... or and brightest hopes for the future of ground-breaking discoveries in the field of medicine. Stem cells are vitally important for human body as their major functions include producing repair mechani ...

(7 pages) 4 0 0.0 Sep/2012

Subjects: Social Science Essays > Controversial Issues