Choose the incorrect match.
a)	Nucleus                      – RNA	b)	Lysosome                  – Protein synthesis
c)	Mitochondria           – Respiration	d)	Cytoskeleton             – Microtubules

(b)

Protein synthesis takes place in ribosomes, which are attached to surface of endoplasmic reticulum by ribophorin-I and ribophorin-II. About 50 hydrolytic enzymes are found in the lysosome. They include proteases, nucleases, glycosidases, lipases phospholipases, phosphatases and sulphatases. All lysosomal enzymes are acid hydrolases and optimally active at pH-5.0.