Bacteria lab essay

Afterlife and Soul As late asthe editorial staff of the Syntopicon found in their compilation of the Great Books of the Western Worldthat "The philosophical issue concerning immortality cannot be separated from issues concerning the existence and nature of man's soul.

Bacteria lab essay

Michal Bacteria lab essay Bacteria are very small organisms, usually consisting of one cell, that lack chlorophyll a green pigment found in plants that allows for the production of food. Except for viruses, they are the smallest living things on Earth.

Many bacteria are so small that a million of them, laid end-to-end, would measure no more than about five centimeters two inches. The term bacteria is the plural form of the word bacterium, which represents a single organism.

Bacteria are found everywhere, in the air, soil, water, and inside your body and on your skin. They tend to multiply very rapidly under favorable conditions, forming colonies of millions or even billions of organisms within a space as small as a drop of water.

The Dutch merchant and amateur scientist Anton van Leeuwenhoek — was the first person to observe bacteria and other microorganisms.


Using single-lens microscopes of his own design, he described bacteria and other microorganisms calling them "animalcules" in a series of letters to the Royal Society of London between and Today, bacteria are classified in the kingdom Procaryotae.

This term refers to the fact that bacteria consist of prokaryotic cells, cells that do not contain a nucleus. A nucleus is a structure that controls a cell's functions and contains genes. Genes carry the deoxyribonucleic acid [DNA] that determines the characteristics passed on from one generation to the next.

The genetic material of bacteria is contained, instead, within a single, circular chain of DNA. Characteristics of bacteria Bacteria are generally classified into three groups based on their shape.

They are described as spherical coccusrodlike bacillusor spiral or corkscrew spirochete [pronounced SPY-ruh-keet] or spirilla. Some bacteria also have a shape like that of a comma and are known as vibrio.

Words to Know Aerobic bacteria: Bacteria that need oxygen in order to live and grow. Bacteria that do not require oxygen in order to live and grow. A type of bacterium with a rodlike shape. A thick, jelly-like material that surrounds the surface of some bacteria cells.

A type of bacterium with a spherical round shape. Bacteria that break down dead organic matter. Short, hairlike projections that may form on the outer surface of a bacterial cell.

Bacteria lab essay

A form of reproduction in which a single cell divides to form two new cells. Whiplike projections on the surface of bacterial cells that make movement possible.

A process by which bacteria in food are killed by heating the food to a particular temperature for some given period of time. Projections that join pairs of bacteria together, making possible the transfer of genetic material between them.

A cell that has no distinct nucleus. A type of bacterium with a spiral shape.

Characteristics of bacteria

A type of bacterium with a comma-like shape. As the drawing of the anatomy of a typical bacterium shows, the cytoplasm of all bacteria is enclosed within a cell membrane that is itself surrounded by a rigid cell wall.

Bacteria also produce a thick, jelly-like material on the surface of the cell wall. When that material forms a distinct outside layer, it is known as a capsule. Many rod, spiral, and comma-shaped bacteria have whiplike limbs, known as flagella, attached to the outside of their cells.

By examining the results of the incubation of bacteria, the zone of inhibition, which is the area without bacterial growth that surrounds the antimicrobial disk, can determine how effective the antibiotics were against the bacteria. Introduction. In this lab, the goal was to transform the bacteria e-coli to glow in the dark (or under a black light). Four plates were set up with agar in them for the bacteria to feed on and grow. Since , CELLS alive! has provided students with a learning resource for cell biology, microbiology, immunology, and microscopy through the use of mobile-friendly interactive animations, video, puzzles, quizzes and study aids.

They use these flagella for movement by waving them back and forth. Other bacteria move simply by wiggling their whole cell back and forth.

Some bacteria are unable to move at all. Two other kinds of projections found on bacterial surfaces include fimbriae and pili. Fimbriae pronounced FIM-bree-ay are tiny bristles that allow bacteria to attach themselves to other objects or to surfaces.

A scanning electron micrograph of the aerobic soil bacterium Pseudomonas fluorescens. The bacterium uses its long, whiplike flagellae to propel itself through the water layer that surrounds soil particles.Read this essay on Bacteria Lab Report.

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Words to Know Aerobic bacteria: Bacteria that need oxygen in order to live and grow.

General Format

Anaerobic bacteria: Bacteria that do not require oxygen in order to live and grow. Bacillus: A type of bacterium with a rodlike shape. Capsule: A thick, jelly-like material that surrounds the surface of some bacteria cells. The Purdue University Online Writing Lab serves writers from around the world and the Purdue University Writing Lab helps writers on Purdue's campus.

Bacteria lab essay

Abstract: The bacterial flagellum is a complex molecular system with multiple components required for functional motility. Such systems are sometimes proposed as puzzles for evolutionary theory on the assumption that selection would have no function to act on until all components are in place.

The two physiological disorders I will be talking about in this assignment is hypertension and Diabetes. Pulmonary hypertension Pulmonary hypertension is a lung disorder.

The arteries that carry blood from the heart to the lungs become narrowed, making it very hard for the blood to get through the vessels, this then causes the pressure in [ ]. Misc thoughts, memories, proto-essays, musings, etc.

And on that dread day, the Ineffable One will summon the artificers and makers of graven images, and He will command them to give life to their creations, and failing, they and their creations will be dedicated to the flames.

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