Diseases by Bacteria-Advance

Dear Readers,

Compared to other sections, Botany is considered to be the most scoring section. If prepared thoroughly, Botany can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. The most important diagnostic test for typhoid during the first week of fever is

  •  Widal test
  •  Blood culture
  •  Stool culture
  •  Peripheral blood smear examination

Widal test

Q2. The most important complication of typhoid fever is

  •  Intestinal obstruction
  •  Intestinal perforation
  •  Anaemia
  •  Constant fever

Intestinal perforation

Q3. Triple antigen is or DPT is meant for

  •  A vaccine against malaria, typhoid and cancer
  •  A vaccine against polio, rabies and hepatitis
  •  A vaccine against tetanus, pertussis and diphtheria
  •  A mixture of bacteria that causes tetanus, diphtheria and polio

A vaccine against tetanus, pertussis and diphtheria

Q4. Which of the following is not true about the antibiotics

  •  The term antibiotic was given by Selmen Waksman in 1942
  •  First antibiotic was discovered by Alexander Flemming
  •  Each antibiotic is useful for special type of germs or bacteria
  •  Some people are allergic for one specific antibiotics

Each antibiotic is useful for special type of germs or bacteria

Q5. Antibody molecules have

  •  Two pairs of polypeptide chains of equal length
  •  Two pairs of polypeptide chains of unequal length
  •  Four pairs of polypeptide chains of equal length
  •  Four pairs of polypeptide chains of unequal length

Two pairs of polypeptide chains of equal length

Q6. The main reason why antibiotics could not solve all the problems of bacteria mediated diseases is

  •  Insensitivity of the individual following prolonged exposure to antibiotics
  •  Inactivation of antibiotics by bacterial enzymes
  •  Decreased efficiency of the immune system
  •  The development of mutant strains resistant to antibiotics

The development of mutant strains resistant to antibiotics

Q7. Diphtheria is caused by

  •  Poisons released by living bacterial cells into the host tissues
  •  Poisons released from dead bacterial cells into the host tissues
  •  Poisons released by virus into the host tissues
  •  Excessive immune response by the host’s body

Poisons released by living bacterial cells into the host tissues

Q8. Main function of leghaemoglobin is

  •  Promotes oxygen availability to nodules
  •  Generate ATP for nitrogen fixation
  •  Generate hydrogen ions for ammonia form
  •  Scavenge oxygen

Scavenge oxygen

Q9. Bacteria cannot survive on honey because Neomycin is extracted from

  •  They cannot consume it
  •  It inhibits their reproduction
  •  They get plasmolysed and killed
  •  It is their poison

They get plasmolysed and killed

Q10. Antibiotics cure diseases by

  •  Removing pain
  •  Competitive inhibition
  •  Turning the pathogen out of the body
  •  Fighting with the disease causing organism of the above

Competitive inhibition

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Diseases by Bacteria- Advance
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