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

What are protein hydrolysates? Proteins that have been treated with enzymes to break them down into amino acids or shorter peptides are referred to as protein hydrolysates.

What is the excretory organ of lizard

Explain Chronic Infections Fever Chronic  Infections Fever: These are generally of longer and sustained duration. The patients have a past history of repeated episodes or con

Q. How does the organism understand that a clotting process must begin? When there is some tissue wound with injury of blood vessel the platelets and endothelial cells of the w

give two examples of chemical reactions which are catalysed by enzymes in the course of brewing

What are the types of changes encountered during the Support phase Adaptation - To accommodate changes to its environment Correction - To uncover defects in the Software

ADRENA L MEDULLA The adrenal medulla develops from the neuroectoderm of the embryo. Medulla consists of chromaffin cells or phaeochromocytes. These cells are connected wi

Explain carbohydrates requirement during thyphoid Carbohydrates: Carbohydrate intake should be liberal. This can be attributed  to: 1.  Repletion of glycogen stores. 2.

Define about the Polyphenols? We now come to a group of compounds, which were until recently considered to adversely influence nutrient absorption or giving colour to foods e.g