Biology

Antibiotics and Immunity

859 Questions

Prepare for your science sections with these questions on antibiotics and immunity. The hub covers various classes of antibiotics, their sources, and mechanisms of microbial resistance. It also addresses the human antiviral response.

Antibiotic classes and sourcesMicrobial resistance mechanismsAntiviral proteinsDisease treatments

Antibiotics and Immunity Questions

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

Resistance to antibiotics may occur by

  1. Impermeability to the antibiotic

  2. Production of increased levels of the sensitive enzyme

  3. Production of a recombinant enzyme that is insensitive to the antibiotic

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When the microbe alters in such way that reduces the effectiveness of drug or chemicals to prevent infection and microbes multiply continuously is called as antibiotic resistance. This situation can have occurred due to a continuous supplement of particular antibiotic, production of recombinant enzymes and ineffectiveness of antibiotic. Thus, the correct answer is option D.

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

Antiseptics can

  1. Protect the body from entry of germs

  2. Kill germs

  3. Has no effect on germs

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antiseptics 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 e.g., lysol, carbolic acid (phenol).

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

Antiseptics are

  1. Mild chemical substances

  2. Strong chemical substances

  3. Weak catalysts

  4. Strong enzymes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Antiseptics are the mild chemical, antimicrobial substance. It is make mild so that it cannot harm the tissues. It is applied to tissues or skin to reduce the infection e.g., hydrogen peroxide.

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

Antiseptics are 

  1. Taken orally

  2. Intravenously

  3. Applied on skin

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antiseptics are mild chemical substances which when applied on the skin to kill germs. These substances are in such mild concentration that they cause no harm to the skin and body. Lysol, carbolic acid (phenol). Thus, the correct answer is option C.

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

Which of the following is an antiseptic?

  1. Lysol

  2. Carbonic acid

  3. Iodine

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Antiseptics 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 e.g., lysol, carbolic acid (phenol), iodine. Thus, the correct answer is option D.

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

Antiseptics can

  1. protect the body from tentry of germs

  2. kill germs

  3. has no effect on germs

  4. all
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Which of the following is not an antiseptic?

  1. Phenol

  2. Mercurochrome

  3. LSD

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Lysol, carbolic acid(phenol),Iodine, benzoic acid,Mercurochrome,boric acid etc in dilute solution are good antiseptics.
LSD is one of the most potent, mood-changing chemicals. It is manufactured from lysergic acid, which is found in the ergot fungus that grows on rye and other grains.
So, the correct answer is 'LSD'
Multiple choice biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

Mark the correct statement about disinfectants.

  1. All disinfectants are strong and should not come in contact with the human skin.

  2. Deodorants are neither antiseptics or disinfectants.

  3. Disinfectants are applied on spots and places where germs thrive and multiply.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Disinfectants are the chemical or antimicrobial substance that are applied to non-living objects such as floor to kill microbes e.g., phenol. Deodrants are the substance used to remove unpleasant bodily odour. Thus, the correct answer is option D.

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

Mark the correct statement.

  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 inanimate objects.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Disinfectants are chemical agents used to disinfect inanimate objects and surfaces e.g., phenol, cresol. Antiseptics are the mild chemical agents applied to living tissues to prevent infection e.g., hydrogen peroxide. Thus, the correct answer is option C.

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

Which of the following is an antiseptic

  1. Lysol

  2. Carbolic acid

  3. Iodine

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Mercurochrome is a type of

  1. Disinfectant

  2. Antibiotic

  3. Antiseptic

  4. All
Reveal answer Fill a bubble to check yourself
C Correct answer
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. Dettol, savlon are all antiseptics.

So, the correct answer is 'Antiseptic'.

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

Dettol and savlon is also an

  1. Disinfectant

  2. Antibiotic

  3. Antiseptic

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
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. Dettol, savlon are all antiseptics.
So, the correct answer is 'Antiseptic'.
Multiple choice biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

40% formalin is used as

  1. Disinfectants

  2. Antibiotics

  3. Antigens

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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 'Disinfectants'.

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

Mark the correct statement about disinfectants

  1. All disinfectants are strong and should not come in contact with the human skin.

  2. Deodorants are neither antiseptics nor disinfectants.

  3. Disinfectants are applied on spots and places where germs thrive an multiply .

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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 disinfactants  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 D

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

Identify the correct definition of an antiseptic.

  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.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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