Smoking, Biology

Assignment Help:

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.

Related Discussions:- Smoking

What is the clitellum of earthtworms and where it is located, What is the c...

What is the clitellum of earthtworms and where it is located? The clitellum is a special region of the annelid constituted by rings (metameres) with reproductive function. It c

Define volumetric flasks - nutritional biochemistry, Define volumetric flas...

Define volumetric flasks - Nutritional Biochemistry A volumetric flask is used to make up a solution of fixed volume very accurately. It is calibrated to contain a particular v

Properties of transparency factors in corneal hydration, What are special p...

What are special properties of transparency factors in corneal hydration of cornea? The factors affecting the transparency include special properties of the corneal epitheliu

Meaning of counselling in diabetes mellitus, Q. Meaning of Counselling in d...

Q. Meaning of Counselling in diabetes mellitus? The word counselling is a very broad term which is used for helping others to overcome their particular difficulty. It has been

How many times acidic is a ph=4, How many times more acidic is a pH=4 from ...

How many times more acidic is a pH=4 from a pH=7 solution?

Multiple replicons , In the eukaryotes replication of chromosomal DNA happe...

In the eukaryotes replication of chromosomal DNA happens only in the S phase of the cell cycle. As for bacterial DNA, eukaryotic DNA is replicated     figure: The euk

Vitamins requirement during myocardial infarction, Q. Vitamins requirement ...

Q. Vitamins requirement during myocardial infarction? The requirement of vitamins and minerals is largely governed by the existing nutritional status and the clinical parameter

Water loss - plant water relation, Water Loss - Plant Water Relation ...

Water Loss - Plant Water Relation Plants lose about 98% of water to the atmosphere by transpiration. Often water loss by transpiration exceeds gain by absorption and results

How dissimilar are intracellular and extracellular digestion, How dissimila...

How dissimilar are intracellular and extracellular digestion? What is the evolutionary benefit of extracellular digestion? Intracellular digestion is that in which the breaking

How do ascaris obtain food, Q. How do ascaris obtain food? An ascaris l...

Q. How do ascaris obtain food? An ascaris live within the human gut and feed from the food ingested by the infected person.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd