Question

Ribosomes are the granular structure first observed under the electron microscope as dense particle by which scientist (a) Robert Brown (1831) (b) George Palade (1953) (c) Camillo Golgi (1898) (d) Singer and Nicolson (1972)

Short answer

(b) George Palade (1953)

Step-by-step solution

Understand the Choices

Look at each option provided. Each scientist was instrumental in various biological discoveries. Understand that Robert Brown discovered the cell nucleus, George Palade was instrumental in the discovery of ribosomes, Camillo Golgi discovered the Golgi apparatus, and Singer and Nicolson proposed the fluid mosaic model of cell membranes.

Associate Discoveries with Scientists

Try to recall the discoveries associated with each scientist mentioned in the options. In this case, George Palade is associated with the discovery mentioned in the question.

Specify the Answer

After recalling the information correctly, confirm that the scientist who first observed ribosomes under an electron microscope was George Palade. So the correct answer is option (b) George Palade (1953).