Biology Essays

Taste is the ability to respond to dissolved molecules and ions called tastants. Humans detect taste with taste receptor cells. These are clustered in taste buds. Each taste bud has a pore that opens out to the surface of the tongue enabling molecules and ions taken into the mouth to …

* State the resolution and magnification that can be achieved by an electron microscope. * explain the need for staining samples for use in electron microscopy Lesson 2 * calculate linear magnification of an image such as photomicrograph or electron micrograph Key words * Resolution= the ability to distinguish 2 …

“You’re not the kind of franchise applicant we usually get,” said Harry Robertson, company lawyer for the Body Shop Canada, as he opened his meeting with potential franchisee Richard Paul. “I suppose we’ll find out whether that’s an advantage or disadvantage,” replied Mr. Paul. Mr. Robertson’s comment had taken Mr. …

a. Introduction/Overview A phrase coined by many emerging bands in the early 1980’s, ‘alternative rock’ has become an increasingly more popular term used to describe artists that try to be innately different, yet veer away from the establishment and wish only to play the music they want to play without …

The phenomenon of catalysis makes possible biochemical reactions necessary for all life processes. Catalysis is defined as the acceleration of a chemical reaction by some substance which itself undergoes no permanent chemical change. The catalysts of biochemical reactions are enzymes and are responsible for bringing about almost all of the …

Smoking cigarettes has been proven too be extremely dangerous to your health, which causes various forms of cancer and other life threatening diseases. There are over 4,000 chemicals in cigarette smoke and 200 of those are known poisons. Smoking cigarettes for as few as a couple of years can have …

Different designs can be followed for planting fruit trees in a given area. Such designs are explained in this booklet in a simple and lucid style. Practically all the sections in this book require careful study. However , the reader should try to differentiate between the systems with care before …

Someone you care about is suffering from heart disease, juvenile diabetes, Alzheimer’s, or even forms of cancer and the only hope may be through stem cell research. Would, or should, you support this study? You, like many researchers and scientists, should have great hope for stem cells and its ability …

The pancreas is a dual-function gland, having features of both endocrine and exocrine glands. The part of the pancreas with endocrine function is made up of approximately a million[3] cell clusters called islets of Langerhans. Four main cell types exist in the islets. They are relatively difficult to distinguish using …

T-cells, which belong to a group of white blood cells known as lymphocytes, play a vital role in cell mediated immunity. They differ from other lymphocyte types, such as B-cells and Natural Killer NK cells by the presence of the T-cell receptor (TCR). T cells are called as such because …