Cell Biology in Biotechnology MCQs

Apoptosis is characterized by

Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the molecule X by expressing protein Y. Which one of the following modes of signaling represents the interaction between A and B?

The cytokinetic organelle in plant cells is

Which of the following rings of the basal granule in gram negative bacteria is anchored to the plasma membrane?

The most variable period of the cell cycle is

Which of the following are energy transducing membranes? P. Plasma membrane of bacteria Q. Inner membrane of chloroplasts R. Inner membrane of mitochondria

Which of the following statements are correct about eukaryotic cell cycle? P. CDKs can phosphorylate proteins in the absence of cyclins. Q. CDKs can be inactivated by phosphorylation. R. Degradation of cyclins is required for cell cycle progression. S. CDKs are not involved in chromosome condensation.

Lysosomes contain

Murein is a