Preface The preparation of any competitive examination involves three phases, first the thorough study of all of the relevant topics, second revision phase and third the most important is the practice phase. I am honoured to present look, “Objective Biochemistry” in the form of Question Bank before our keen readers. Here my main aim is to provide, authentic and qualitative questions to the competitors to equip and judge themselves prior to the different National Level examinations in the field of Biochemistry. I have brought out this book basically for students who plan to appear for Biochemistry descipline in the entrance examinations, (held by ICAR, ASRB, -NET, SRF, ARS, GATE, ICMR, CSIR-SRF-NET, NAARM, DBT, JNU, UPCATET, IARI, NDRI, UPSC, PCS etc.) as well as other specific tests in the field of Medical, Pharmacy, Physiotherapy, Nursing, UPCATET and other Paramedical (PG level). There is a dearth of good entrance manual of Biochemistry for the above said examinations. Hence, I have prepared an exhaustive Question bank of around 30,000 MCQs with answers covering a wide spectrum of basic Biochemical topics of the subject. Some of the important topics which are given a good coverage include Atoms and Molecule, Water and pH buffer, Biological Energy Generation and Thermodynamics, Carbohydrate and its metabolism, Amino Acid, Protein and its metabolism, Lipid and its metabolism, Nucleic acids, Enzymes and Enzyme Kinetics, Hormone and growth substances, Pigments, Tools and Techniques, Vitamins and Agriculture Biochemistry. The objective questions are prepared based on the background taken from previous question papers of Professional medical and Paramedical competitive entrance examinations. I opted systematic presentation of questions which leads more to conceptual understanding rather than physical memory. I am optimistic that it would help students and readers in self improvement. Though I have tried my best to minimize the typographical errors in the manuscript but still some might have cropt in. I thankfully invite the readers to bring these in my notice, so that they may be rectified in next edition.