Tag: prevention and treatment of disease

Questions Related to prevention and treatment of disease

Identify the correct definition of a disinfectant.

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Chemicals that kill or prevent infection and damage living tissues.

  2. Chemicals that kill or prevent infection without damaging living tissues.

  3. Chemicals that can only kill or prevent infection on non-living objects.

  4. Chemicals that can only kill or prevent infection on animals.

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Correct Option: C
Explanation:

Disinfectants are chemical antimicrobial agents used to kill microbes from inanimate objects and surfaces or non-living objects e.g., phenol, cresol etc.

Mark the correct difference between antiseptic and disinfectant

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. antiseptic are applied on the body whereas disinfectant are applied on spots

  2. antiseptic and disinfectant both are applied on spots

  3. antiseptic and disinfectant both are applied on body

  4. disinfectant are applied on the body whereas antiseptic are applied on spots

Show answer
Correct Option: A
Explanation:

These are strong chemical substances that are applied on spots and places where germs thrive an multiply and places where germs thrive and multiply.commonly used disinfectants are cresol, phenol, Lysol,40% formalin, lime, Bordeaux mixture, DDT etc. Precaution-all disinfectants are strong and should not come in contact with the human skin. Strong heat and boiling also destroy germs and may be called physical disinfectants.deodorants are neither antiseptics nor is infectants. They only serve to mask a bad smell.
So, the correct answer is A

Identify the correct definition of an antiseptic.

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Chemicals that kill or prevent infection and damage living tissues.

  2. Chemicals that kill or prevent infection without damaging living tissues.

  3. Chemicals that can only kill or prevent infection on non-living tissues.

  4. Chemicals that can only kill or prevent infection on animal housing.

Show answer
Correct Option: B
Explanation:

Antiseptics are the mild chemical and antimicrobial agents applied to living tissues to prevent infection without damaging living tissues e.g., hydrogen peroxide.

Mark the correct statement

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Antiseptic are strong germ killing substances

  2. Iodine is an disinfectants

  3. Phenol is a disinfectant

  4. Disinfectant are applied on the body whereas antiseptic are applied on spots

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Correct Option: C
Explanation:

These are strong chemical substances that are applied on spots and places where germs thrive an multiply and places where germs thrive and multiply.commonly used disinfectants are cresol,phenol,Lysol,40% formalin,lime,Bordeaux mixture, DDT etc. Precaution-all disinfectants are strong and should not come in contact with the human skin. Strong heat and boiling also destroy germs and may be called physical disinfectants.deodorants are neither antiseptics nor disinfectants.they only serve to mask a bad smell.

So, the correct answer is 'Phenol is a disinfectant'.

A person applies hydrogen peroxide on his wound. This is to kill

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Anaerobic bacteria

  2. Aerobic bacteria

  3. Fungi

  4. Protozoa

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Correct Option: A
Explanation:

A person applies hydrogen peroxide on his wound. This is to kill anaerobic bacteria. Anaerobic bacteria cannot survive in the presence of oxygen. The hydrogen peroxide bubbling releases oxygen. Hence, due to the released oxygen, anaerobic bacteria will be killed. However, it also affects the healthy cells of the body. This in turn slows down the process of wound healing.

Thus, the correct answer is 'Anaerobic bacteria.'

Hexachlorophene is a bactericide often used in

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Medicines

  2. Antibiotics

  3. Disinfectants and soaps

  4. Preservatives

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Correct Option: C

Antiseptics are

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. hormones

  2. enzymes

  3. chemical substances

  4. all

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Correct Option: C
Explanation:

These are mild chemical substances which, when applied on the body, kill germs. These substances are in such mild concentration that they cause no harm to the skin and body. Lysol, carbolic acid (phenol), Iodine, benzoic acid, Mercurochrome, boric acid etc in dilute solution are good antiseptics. Certain antibiotic creams also serve the same purpose.

Ozone is passed through swimming pool because it

biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

  1. Absorbs UV radiations

  2. Acts as disinfectant

  3. Easily available from $O _2$

  4. All of the above

Show answer
Correct Option: B
Explanation:

Ozone is an effective disinfectant. It is passed through the swimming pool and is used in water treatment units because of the following reasons:

1. It improves the smell and visibility of the water.
2. It destroys bacteria and viruses by causing their oxidation.
3. It oxidises metals like manganese, iron and sulphur into the soluble particles and so these can be easily filtered out.
4. It has a bleaching effect on the discoloured water.
Hence, the correct answer is 'Acts as disinfectant'.