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

Cell membrane, CELL MEMBRANE It is biological, thin, elastic, flexib...

CELL MEMBRANE It is biological, thin, elastic, flexible & selective permeable membrane. Term "Cell membrane" was coined by Negeli & Crammer 1855. Term " Plasma membr

Determine factors affecting zn absorption - micro minerals, Determine Facto...

Determine Factors affecting Zn Absorption - Micro Minerals? In the last unit you have studied that absorption of various minerals (bioavailability) is influenced by number of f

Define mineralizations and formation of new bone, Define Mineralizations an...

Define Mineralizations and formation of new bone? Vitamin D plays a role in the synthesis of a prominent non collage nous protein, osteocalcin, a vitamin K- dependent protein f

What proportion of progeny pairs gt or ac have, A haploid cross is made in ...

A haploid cross is made in which the mutant allele has GC at base position 200 in the DNA of a certain gene, and the wild type has AT. What proportion of progeny will have the hybr

Mixed tricuspid stenosis and regurgitation , Mixed Tricuspid Stenosis and R...

Mixed Tricuspid Stenosis and Regurgitation:  Rheumatic involvement of the tricuspid valve is often seen in association with involvement of mitral and rarely aortic valve. Isolated

Chicken infectious anemia (cia), C h ic k e n infectious anemia (CIA) ...

C h ic k e n infectious anemia (CIA) Chicken infectious anemia virus (CIAV), a member of genus Gyrovirus of the family Circoviridae, is the causative agent of chicken infe

Explain coronary heart disease, Apart from any inherited tendency towards c...

Apart from any inherited tendency towards coronary heart disease, what are thought to be the four major risk factors?  The four major risk factors for coronary heart disease ar

State the objectives of neuropsychological assessment, State the goals of N...

State the goals of Neuropsychological assessment Neuropsychological assessment therefore has twin goals. i) The first goal is to recognize the disrupted psychological compo

What is name for interruptions for myelin sheath, In most axons, myelin she...

In most axons, myelin sheath is interrupted at intervals of about 1 millimeter or more. These interruptions are known as: a) Collaterals b) Nodes of Ranvier (pron: ron-vee-ay)

Describe cutaneous diffusion, Q. In arthropods why isn't gas exchange done ...

Q. In arthropods why isn't gas exchange done through cutaneous diffusion? In arthropods the impermeability of the exoskeleton makes the way of gases difficult. In addition the

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