Question

__________ are granular structures first observed under electron microscope as dense particles by ______ $\left(1955\right)$.

• A. Ribosomes, George Palade
• B. Ribosomes, Perner
• C. Lysosomes, de Duve
• D. Peroxisomes, de Duve

Answer 1

The correct option is A Ribosomes, George Palade

Ribosomes are granular structures which were discovered by Robinson and Brown $\left(1953\right)$ in plant cell and by Palade $\left(1955\right)$ in animal cell. Palade $\left(1955\right)$ also coined the term ribosomes hence, they are also called Palade particlkes. Ribosomes occur in both prokaryotic and eukaryotic cells.

So, the correct answer is 'Ribosomes, George Palade'.