Essays Tagged: "Gram-positive bacteria"


THE AMERICAN UNIVERSITY IN CAIROBIOLOGY DEPARTMENTSCIENCE 453 : BIOLOGY FOR ENGINEERSREPORT No.1BACTERIA CLASSIFICATION BY GRAM STAININGPresented By : Karim A. Zaklama92-1509Sci. 453-0124/2/96 ... Objective: To test a sample of laboratory prepared bacteria and categorise it according to Christian's gram positive and gram negative classes and also ...

(3 pages) 174 1 4.6 Sep/1997

Subjects: Science Essays > Biology

Gram Staining to Distinguish Between Different Types of Bacteria

It/'s a practical Good and to the point.Gram Staining to Distinguish Between Different Types of BacteriaIntroductionBacteria fall into two natural groups according to their cell wall structure. So ... rgobacterium Tumefaciens gave a negative Gram stain.ConclusionsBoth Gram positive and Gram negative bacteria have a cell wall with a rigid framework of murein, a molecule consisting of parallel polysa ...

(2 pages) 50 0 5.0 Jan/1995

Subjects: Science Essays > Biology

Administering different antibiotics to Streptococcus salivarius will prohibit growth at different rates.

.Antibiotics are substances produced by living organisms that inhibit the growth of microorganisms. Bacteria manufacture substances to inhibit or kill other microbes. Stated in Antibiotics and Disinfe ... acteriologist, Fleming was throwing out old culture plates that were contaminated with mold where a bacterial culture had stopped growing. He noticed a strange growth pattern, a clear area around the ...

(5 pages) 43 0 3.7 Jan/2004

Subjects: Science Essays > Biology

Essay on bacterial cell wall composition

ptidoglycan differs strongly between Gram+ and Gram- (and Acid-Fast) cell walls.Think Positive: The Gram-Positive Cell WallGram+ cell walls have a distinctly thick layer of peptidoglycan (which contra ... decolonizing agent such as 95% ethanol or a mixture of acetone and alcohol. The difference between Gram-positive and Gram-negative bacteria is in the permeability of the cell wall to these "purple co ...

(5 pages) 57 0 4.3 Feb/2004

Subjects: Science Essays > Biology


Bacteria are an ancient and diverse form of life that have always been an integral part of the human ... and diverse form of life that have always been an integral part of the human body. The majority of bacteria are harmless, and some even helpful and necessary for the occurrence of specific bodily fun ... cteria have proven to be harmful, and throughout the history of man our species has been plagued by bacterial infection. Pathogenic bacteria have many structural characteristics that allow them to sur ...

(12 pages) 52 0 0.0 Aug/2001

Subjects: Science Essays > Biology

Lactic Acid Bacteria

me certain delicious food products like yogurt, buttermilk or cheese, they are actually eating live bacterial biomass which has acidified the milk content and contains a mixture of bacterial slime lay ... lime layers. Perhaps it is a blessing that most people are unaware because when most hear the word 'bacteria,' their first thought is of a microscopic unicellular organism that causes various types of ...

(13 pages) 101 0 5.0 May/2008

Subjects: Science Essays > Microbiology

Bacteria and Gram-Staining

ates the bacteria into one of two groups based on their cell wall structure. Bacteria may be either Gram-positive or Gram-negative. Gram-positive bacteria have simpler cell walls and more peptidoglyca ... anin Counterstain for 1 minute.Wash with water.Very carefully blot and air dry.III. ObserveResults: Gram-positive organisms - purpleGram-negative organisms - red (Carolina Biological Supply)In this ex ...

(5 pages) 0 0 0.0 Mar/2013

Subjects: Businesss Research Papers