Login

Explain why antibiotics do not work against viruses but work against many group of bacteria?

 Antibiotics work in two different ways. They either blocks the cell wall formation of bacteria or else stop them from multiplying. Since virus don 't have their cell wall and cellular machinery so the antibiotics are not effective against virus.

 
  • 13
View Full Answer

thank u so much on wednesday is my xam

  • -3

 plz plz can u ans my question   the kinetic energy of a free falling object increases yet it holds the law of conservation of energy

  • -3

ya sure i'll just explain....

  • -3

 see when an object is at certain height it has potential energy and zero kinetic energy. Here the total energy = PE (Potential energy) + KE (Kinetic Energy).

When a body is dropped from a height its potential energy starts decreasing and the kinetic energy starts to increase. But the increase in KE is equal to the decrease in PE.

(for eg. if the PE at a certain height is 100J, and when it is made to fall from the height the PE starts to decrease. So if the PE at some point is 95 dat means the decrease in PE is 100 - 95 = 5J. Thus, the KE at that same point would be 5. This means the amount or rate at which the PE decreases, the KE increases with the same amount or same rate)

So now as per question in a freely falling body the KE increase, at the same time the PE is drecreases with same amount. So the total enery remains the same.

Thus, the law of conservation of energy is not viloated since energy remains same.

If you have any doubt plz ask, i know its a bit lenghty.

  • 4

thnk u so ,uch 

it must be lengthy but wen my mom read this she really likes..... i loved it.......... thnk u so much it really hepled me out 

THANK YOU

  • -2

ur welcome....all d vry best fr d exam....even i have my sci. exam tomorrow....actually today only...its 4:30 :).....

  • 0

 gud luck.............hope ur paper goes the best.........:)  

  • -4

thanxx !!...it went good :) :)..how was urs ?

  • 0
Pls help me out with this question 
what is the difference between congenital and acquired diseases.
  • 0
A congenital disorder is a medical condition that is present at birth. A congenital disorder can be recognized before birth (prenatally), at birth, or many years later. Congenital disorders can be a result of genetic abnormalities, the intrauterine environment, or unknown factors Acquired Disease are opposite of Congenital .They are acquired after Birth .

HOPE THIS HELPS U !!!!!!!!!!!!!
  • 1
Antibiotics act by blocking certain biochemical pathways which are essential for the survival of bacteria like cell wall formation, protein synthesis etc. For example: Penicillin is an antibiotic. It blocks the formation of cell wall in bacteria, which makes bacteria weak and ultimately results in death of bacteria. However, antibiotics cannot be used against viruses. This is because, viruses do not possess any cellular machinery of their own to function. In fact, they get integrated with the host cell and use machinery of the host to survive. .
  • 0
Explain any antibiotics work against viruses but work and many group of Bacteria
  • 0
What are you looking for?