Who invented the Electron microscope?

Q. The theory that all animals and plants are made up of cells and they could arise only from pre-existing cells was propounded by
  1 Robert Hooke
  2 Matthias Schleiden and Theodore Schwann
  3 Purkinje
  4 Leuwenhoek
  Ans:2
Q. Who invented the Electron microscope?
  1 Knoll and Ruska
  2 Rudolk and Kolliker
  3 Robert Hooke
  4 C.P. Swanson
  Ans:1
Q. The first person to observe the bacteria, protozoa and spermatozoa under the microscope was
  1 Theodore Schwann
  2 Matthias Schleiden
  3 Robert Hooke
  4 Leuwenhoek
  Ans:4
Q. Who was the first scientist to use an instrument for biological studies in 1665?
  1 Robert Hooke
  2 Schwann
  3 Schleiden
  4 None of the above
  Ans:1
Q. An anaerobic species of the bacterium Clostridium causes a very serious disease in human populations. Which of the following diseases is it?
  1 Botulism
  2 Pneumonia
  3 Tuberculosis
  4 Typhid
  Ans:1
Q. Whooping cough is caused by
  1 Salmonella
  2 Bacillus pertussis
  3 Variola
  4 Vibriona
  Ans:2
Q. Pneumonia is a bacterial disease caused by the type of bacteria called
  1 Bacilli
  2 Cocci
  3 Sprilli
  4 Vibrio
  Ans:2
Q. The dreaded human disease, Syphilis, is caused by:
  1 A bacterium
  2 Fungus
  3 An animal parasite
  4 Virus
  Ans:1
Q. Which of the following plant diseases is not a bacterial disease?
  1 Brown rot of potatoes
  2 Citrus canker
  3 Heart rot of beets
  4 Red stripe of sugarcane
  Ans:3
Q. Which of the following plant disease is caused by bacteria?
  1 Citrus dieback
  2 Karnal bunt of wheat
  3 Potato witches' broom
  4 Tundu disease of wheat
  Ans:4