The best material for demonstrating streaming movements of protoplasm within living cells is

Which of the following statements is false?

Which of the following statements are correct?

Which cell organelle is involved in the formation of lysosomes?

Consider the following statements and choose the incorrect option:
$a$. Large and more numerous nucleoli are present in cells actively carrying out protein synthesis.
$b$. Nuclear pores allow bidirectional movement of molecules.
$c$. Cytoskeleton is a glycolipid structure for mechanical support,motility and maintenance of the shape of the cell.
$d$. Steroidal hormones are synthesized by Golgi complex.

Identify the mismatched pair: