This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cell Signaling and Signal Transduction – Role of NO”. 1. Nitric oxide is an intracellular messenger. a) True b) False 2. Nitric oxide is formed from which of the amino acid? a) L-lysine b) R-lysine c) R-arginine d) L-arginine 3. Acetylcholine has … Read more
This set of Cell Biology Question Bank focuses on “Cell Signaling and Signal Transduction – Crosstalk among Pathways”. 1. Which of the following does not converge to activate the same signaling pathway? a) G-protein coupled receptor b) Receptor tyrosine kinase c) Integrin d) Calmodulin 2. Cyclic AMP can inhibit the growth of cells. a) True … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cell Signaling and Signal Transduction – Role of Calcium”. 1. The concentration of Calcium in a resting cell is ___________ a) 10 M b) 10-2 M c) 10-5 M d) 10-7 M 2. Abnormal elevation of cytosolic Calcium can occur following a … Read more
This set of Advanced Cell Biology Questions and Answers focuses on “Cell Signaling and Signal Transduction – Protein-tyrosine Phosphorylation”. 1. The Protein-tyrosine kinases phosphorylate the ______________ residues. a) adenine b) cytosine c) tyrosine d) chymosin 2. How many types of protein-tyrosine kinases are there? a) 1 b) 2 c) 3 d) 4 3. The cytoplasmic … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cell Signaling and Signal Transduction – G-protein Receptors and Messengers”. 1. G-protein coupled receptors are referred to as seven-transmembrane receptors. a) True b) False 2. The G-protein coupled receptors have their _____________________ outside the cell. a) amino terminus b) carboxyl terminus c) … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cell Signaling Systems”. 1. How many types of cell signaling are there? a) 1 b) 2 c) 3 d) 4 2. In which type of signaling, the cell that expresses messenger molecules also produces receptors? a) autocrine b) heterocrine c) paracrine d) … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cellular Reproduction – Meiosis”. 1. Meiosis ensures the production of a haploid phase. a) True b) False 2. One round of meiotic division gives rise to _____ haploid cells. a) 1 b) 2 c) 3 d) 4 3. A highly specialized sperm … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cellular Reproduction – M-Phase”. 1. The term mitosis was coined in ____________ a) 1782 b) 1882 c) 1982 d) 1992 2. Mitosis is the process of segregation of DNA molecules into 2 cells. a) True b) False 3. Cytokinesis is the process … Read more
This set of Cell Biology Multiple Choice Questions & Answers (MCQs) focuses on “Cellular Reproduction – Cell Cycle”. 1. Which term is used to refer to a period between the cell divisions? a) M phase b) G0 phase c) Interphase d) Resting phase 2. There are ______ major phases in a cell cycle. a) 1 … Read more
This set of Cell Biology Multiple Choice Questions & Answers focuses on “Between Replication and Repair”. 1. Which form of Xeroderma pigmentosum is observed in patients who cannot synthesize functional polymerase Η? a) XP III b) XP IV c) XP V d) XP VI 2. Replicative polymerase Η belongs to a family of polymerases involved … Read more
