Question

E.R. was discovered by

• A. Palade
• B. Porter et al
• C. Thompson
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

• The endoplasmic reticulum (smooth and rough) is an interconnected network of flattened, membrane-enclosed sacs or tube-like structure which are evenly distributed throughout the cytoplasm.
  
• Endoplasmic reticulum was first seen by Keith R. Porter, Albert Claude and few others in the year 1945.
  
• It was discovered by Porter (1945) and Thompson (1945) independently.
  
• So, the correct answer is 'Both B and C'.