Biology

Antibiotics and Immunity

974 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

Bacitracin is produced by

  1. Bacillus subtilis

  2. Streptomyces griseus

  3. Bacillus lichenformis and Bacillus subtilis

  4. Penicillium notatum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

True, It is produced by combination of both B. lichenformis and B. subtilis

Multiple choice

A new type of air conditioner claims to have bacteria-killing properties. According to the research and development cell, it kills the microbes present in the air and makes it safer and healthier to breathe. Although these air conditioners cost twice the price of regular types, it is a wise investment to buy the new type and save your family from disease causing bacteria.

Which of the following would weaken the given argument?

  1. The bacteria present in the air get killed at low temperatures.

  2. Like the regular type AC’s, the new type also have several issues with CFC emissions.

  3. Bacteria present in the air are not known to have caused any disease or health related issues.

  4. Only old age people are prone to diseases associated with air infected by bacteria.

  5. The power consumption of new type AC’s is way too higher than the regular ones.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

1: Correct. The bacteria get killed, not because of the particular type of AC’s, but because of low temperature; so regular AC’s should be good enough.

Multiple choice

_____ is used to cure pneumonia, venereal diseases.

  1. Ephedrine

  2. Ergot

  3. Penicillin

  4. Erythromycin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Penicillin is a group of antibiotics originally derived from Penicillium fungi, used to treat various bacterial infections including pneumonia and syphilis.

Multiple choice

Which of the following is an antibiotic?

  1. Aspirin

  2. Paracetamol

  3. Penicillin

  4. Sulphadizine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Penicillin is a group of antibiotics derived from Penicillium fungi, used to treat bacterial infections. Aspirin and paracetamol are analgesics, and sulphadiazine is a sulfonamide.

Multiple choice

Which of the following is not an antibiotic?

  1. Penicillin

  2. Streptomycein

  3. Erythromycein

  4. Tetracycline

  5. Plasmodium
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as Plasmodium is a protozoa and not an antibiotic. It is commonly known as 'Malarial parasite'.

Multiple choice

The commonly used medicine for typhoid is

  1. chloroquin

  2. ascorbic acid

  3. sulpha drug

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

Chloromycetin, also known as chloramphenicol, is a broad-spectrum antibiotic historically used to treat typhoid fever. Chloroquin is for malaria, and sulpha drugs are a different class of antibiotics.

Multiple choice

A drug that prevents infection and decay is called a/an

  1. antiseptic

  2. anti-malarial drug

  3. germicide

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

Antiseptics are antimicrobial substances that are applied to living tissue or skin to reduce the possibility of infection, sepsis, or putrefaction.

Multiple choice

Match the column – I (antibiotics) with column – II (mechanism of action) and select the correct option.

 
Column – I Column – II
A. Bacitracin 1. DNA Synthesis Inhibitors
B. Tetracyclines 2. Protein Synthesis Inhibitors
C. Metronidazole 3. Folic Acid synthesis inhibitors
D. Sulfonamides 4. Inhibits cell wall synthesis

  1. A - 3, B - 4, C - 2, D - 1

  2. A - 2, B - 3, C - 4, D - 1

  3. A - 4, B - 2, C - 1, D - 3

  4. A - 3, B - 2, C - 4, D - 1

  5. A - 3, B - 1, C - 4, D - 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Belladonna contains the chemical substance atropine which indeed affects the pupils in the manner described. Paclitaxel is a mitotic inhibitor used in cancer chemotherapy. It was discovered in a US National Cancer Institute program at the Research Triangle Institute in 1967 when Monroe E. Wall and Mansukh C. Wani isolated it from the bark of the Pacific yew tree, Taxus brevifolia and named it taxol.

Multiple choice

Which one of the following sets contains only antibiotic drugs?

  1. Chloramphenicol, Penicillin, Erythromycin, Brompheniramine

  2. Chloramphenicol, Luminal, Erythromycin, Tetracycline

  3. Chloramphenicol, Penicillin, Erythromycin, Tetracycline

  4. Chloramphenicol, Penicillin, Brompheniramine, Luminal

  5. Tetracycline, Penicillin, Morphine, Erythromycin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This option is correct because Erythromycin, Tetracycline, Chloramphenicol, Penicillin all are antibiotic drugs.

Multiple choice

In certain diseases antibiotics are administered. The object is to

  1. Produce toxins against bacteria

  2. Stimulate production of white blood cells are fighting the diseases

  3. Inhibit the growth of bacteria

  4. Stimulate the production of antibodies
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antibiotics refer to drugs thatare used to treat infectious diseases in humans, animals or plants.  They work by inhibiting the growth of or killing microorganisms causing the disease.  Antimicrobials is a broader term that  refers  to any compound, including antibiotics, sanitizers, disinfectants, a number of food preservatives and other substances, that acts to inhibit the growth of or kill microorganisms.