Smoking, Biology

SMOKING -

  1. It means to draw tobacco smoke into the mouth or lungs & exhale it via mouth, nostrils or both.
  2. Tobacco is obtained from Nicotiana tobacum & Nicotiana rustica of solanaceae family, name was given after Jean Nicot.
  3. Tobacco is used for smoking, chewing & snuffing.
  4. It's main toxic component is nicotine.
  5. Other harmful components are CO, benzpyrene and tar.
  6. Tar contains ammonia, formaledehyde aceteldehyde, HCN, NO2, NO3 & acrolein.
  7. Nicotine stimulates conduction of nerve impulses, causes alertness, relaxes muscles, increases heart beat & B.P., retard foetal growth.
Posted Date: 10/5/2012 3:08:13 AM | Location : United States







Related Discussions:- Smoking, Assignment Help, Ask Question on Smoking, Get Answer, Expert's Help, Smoking Discussions

Write discussion on Smoking
Your posts are moderated
Related Questions
Q. Corelation of ST Depressoin with Coronary Angiography? Various investigators considered 1 mm of horizontal or downsloping ST depression to denote a positive test and used fr

Concerning digestion how are poriferans characterized? Sponges are dissimilar from other animals since they present only intracellular digestion. They do not have a digestiv

Planning the Nursing Care   The goals of nursing care are:    Identify the causative factor of megaloblastic anaemia.    Administer appropriate vitamins depending  on

Structure of the Conduction System of the Heart Sinoatrial (SA) Node is the pacemaker node located in the right atrium near the opening of superior venacava. It is called

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Describe Insulin resistance in Non-conventional Factors ? Insulin resistance refers to a generalized metabolic disorder in which various tissues are resistant to normal levels of

Define Quantitative or Analytical Method for Estimation of Nitrogen and Protein? You may recall reading earlier that proteins contain nitrogen along with carbon, hydrogen and s


The cystic fibrosis allele occurs in European populations with q=0.02, what fraction of this population can be expected to have cystic fibrosis?

Applications :  The first operation conducted was ligation of a patent ductus arteriosus through a left thoracotomy. Same approach is used for repair of coarctation of the aorta,