MCQs in Biochemistry - LearningAll

1 This pageintentionally leftblankCopyright 2008, New Age International (P) Ltd., PublishersPublished by New Age International (P) Ltd., PublishersAll rights part of this ebook may be reproduced in any form, by photostat, microfilm,xerography, or any other means, or incorporated into any information retrievalsystem, electronic or mechanical, without the written permission of the inquiries should be emailed to FOR ONE WORLDNEW AGE INTERNATIONAL (P) LIMITED, PUBLISHERS4835/24, Ansari Road, Daryaganj, New Delhi - 110002 Visit us at (13) : 978-81-224-2627-4 Dedicated toPROF. DR. MANVIS ecretarySecretarySecretarySecretarySecre taryKLE Society, BELGAUMKARNATAKA. To My First Pharmacy teacher with Love This pageintentionally leftblankFOREWORDFOREWORDFOREWORDFOREWOR DFOREWORDC ompetitive Examinations are the order of the day.

2 All Colleges conducting professional courses at PG level areadmitting students based on common entrance examination, which is of objective Pharmacy, admissions are based on qualifying the GATE enterance examination conducted by this book, The author has done good work in preparing several objective questions which help the students to facethe subject in the examination with poise and book is well balanced and consists of multiple choice questions from all the important topics like carbohydratemetabolism and other important Biochemical typesetting and quality of printing is good. The author is also well experienced in taking up this type of recommend this book to all the students preparing for GATE examination and also for Medical and PharmacyCollege SHIVANANDAP rincipalAL-AMEEN COLLEGE OF AND ELECTROLYTE BALANCE289 PREFPREFPREFPREFPREFAAAAACECECECECEI have brought out this book basically for students who plan to appear for Biochemistry in the entrance examinations likeJIPMER and other Medical, Pharmacy, Physiotherapy, Nursing and other Paramedical PG Entrance Examinations.

3 Thereis a dearth of good entrance manual of Biochemistry for the above said examinations. Hence, I have prepared anexhaustive Question bank of around 5000 MCQs with answers covering a wide spectrum of basic Biochemical topics ofthe of the important topics which are given a good coverage include Carbohydrate metabolism, Protein metabo-lism, Lipid metabolism, Nucleic acids, Enzymes, Vitamins and Mineral objective questions are prepared based on the background taken from previous question papers of Profes-sional medical and Paramedical competitive entrance book serves as a ready reckoner for Biochemistry as far as objective pattern is concerned. I feel satisfied if thebook serves the purpose for which it is have tried to minimize typographical errors but still some must have crept in.

4 If they are brought to my notice, I willbe rectifying them in the next Criticism is always welcomeG. Vidya SagarAAAAACKNOWLEDGEMENTSCKNOWLEDGEMENTS CKNOWLEDGEMENTSCKNOWLEDGEMENTSCKNOWLEDGE MENTSI wish to express my profound gratitude and benevolence to the following who were the inspiring force in making thisbook a reality Sadhvi ShilapijiChair person, Veerayatan Vidyapeeth,Jakhaniya, Kutch, Gujarat Prof. Dr. College of PharmacyAhmedabad, Gujarat Prof. Dr. College of PharmacyVallabh VidyanagarGujarat Prof. Sheshagiri RaoDept. of Pharmaceutical SciencesAndhra University, Vishakhapatnam, , I express my gratitude to Mr. Saumya Gupta. MD, New Age International (P) Limited, New Delhi, for hisencouragement and Sagar Prof. Dr. Kishor Pramod BhusariPrincipal, Nagpur College of PharmacyNagpur.

5 Prof. Dr. R. RangariPrincipal, Chaturvedi College of PharmacyNagpur Prof. Dr. Anant Naik NagappaPharmacy group, Birla Institute of Technology &SciencesPilani, Rajasthan Prof. Dr. Srinivas RaoPrincipal, VEL s College of PharmacyChennaiSOME VSOME VSOME VSOME VSOME VALUALUALUALUALUABLE COMMENTSABLE COMMENTSABLE COMMENTSABLE COMMENTSABLE COMMENTSThis book is very useful for students appearing for GATE Exams. Recommended Dr. Subhas C. MarihalPrincipal, Goa College of Pharmacy, made simple in the form of multiple choice questions. Strongly Dr. Vijaykumar Ishwar HukkeriPrincipal, KLE College of Pharmacy, HubliDr. Vidya Sagar can be applauded for his untiring efforts in bringing out such a good for students and LibraryDr. G. Devala RaoPrincipal, Sidhartha College of Pharmaceutical SciencesVijaywada, book will be very useful companion for students appearing for PG Medical, Pharmacy, Nursing andPhysiotherapy competitive Dr.

6 RaviPrincipal, Sri Ramakrishna Institute of Pharmaceutical are well framed, mostly from previous entrance examinations. Commendable Madhukar R. TajneDeptt. of Pharmaceutical Sciences,Nagpur University, NagpurCCCCCONTENTSONTENTSONTENTSONTENTSO NTENTSP reface(x) chapter 1 INTRODUCTION TINTRODUCTION TINTRODUCTION TINTRODUCTION TINTRODUCTION TO BIOCHEMISTRYO BIOCHEMISTRYO BIOCHEMISTRYO BIOCHEMISTRYO BIOCHEMISTRY11111 chapter 2 CARBOHYDRACARBOHYDRACARBOHYDRACARBOHYDRA CARBOHYDRATES AND CARBOHYDRATES AND CARBOHYDRATES AND CARBOHYDRATES AND CARBOHYDRATES AND CARBOHYDRATE METTE METTE METTE METTE METABOLISMABOLISMABOLISMABOLISMABOLISM55 555 chapter 3 PROPROPROPROPROTEINS & PROTEINS & PROTEINS & PROTEINS & PROTEINS & PROTEIN METTEIN METTEIN METTEIN METTEIN METABOLISMABOLISMABOLISMABOLISMABOLISM27 27272727 chapter 4 FFFFFAAAAATS & FTS & FTS & FTS & FTS & FAAAAATTY ATTY ATTY ATTY ATTY ACID METCID METCID METCID METCID METABOLISMABOLISMABOLISMABOLISMABOLISM75 75757575 chapter 5 VITVITVITVITVITAMINSAMINSAMINSAMINSAMINS 113113113113113 chapter 6

7 ENZYMESENZYMESENZYMESENZYMESENZYMES14114 1141141141 chapter 7 MINERAL METMINERAL METMINERAL METMINERAL METMINERAL METABOLISMABOLISMABOLISMABOLISMABOLISM18 3183183183183 chapter 8 HORMONE METHORMONE METHORMONE METHORMONE METHORMONE METABOLISMABOLISMABOLISMABOLISMABOLISM20 9209209209209 chapter 9 NUCLEIC ANUCLEIC ANUCLEIC ANUCLEIC ANUCLEIC ACIDSCIDSCIDSCIDSCIDS237237237237237 chapter 10 WWWWWAAAAATER & ELECTROLTER & ELECTROLTER & ELECTROLTER & ELECTROLTER & ELECTROLYTE BALANCEYTE BALANCEYTE BALANCEYTE BALANCEYTE BALANCE281281281281281 This pageintentionally leftblank chapter chapter chapter chapter chapter 11111 I I I I INTRODUCTIONNTRODUCTIONNTRODUCTIONNTRODU CTIONNTRODUCTION TOTOTOTOTOBBBBBIOCHEMISTRYIOCHEMISTRYIOC HEMISTRYIOCHEMISTRYIOCHEMISTRY1. A drug which prevents uric acid synthesisby inhibiting the enzyme xanthineoxidase is(A) Aspirin(B) Allopurinol(C) Colchicine(D)Probenecid2.

8 Which of the following is required forcrystallization and storage of thehormone insulin?(A) Mn++(B) Mg++(C) Ca++(D) Zn++3. Oxidation of which substance in the bodyyields the most calories(A) Glucose(B) Glycogen(C) Protein(D) Lipids4. Milk is deficient in which vitamins?(A) Vitamin C(B) Vitamin A(C) Vitamin B2(D) Vitamin K5. Milk is deficient of which mineral?(A) Phosphorus(B) Sodium (C) Iron(D) Potassium6. Synthesis of prostaglandinsis is inhibitedby(A) Aspirin(B) Arsenic(C) Fluoride(D) Cyanide7. HDL is synthesized and secreted from(A) Pancreas(B)Liver(C) Kidney(D) Muscle8. Which are the cholesterol esters that entercells through the receptor-mediatedendocytosis of lipoproteins hydrolyzed?(A) Endoplasmin reticulum(B) Lysosomes(C) Plasma membrane receptor(D) Mitochondria9.

9 Which of the following phospholipids islocalized to a greater extent in the outerleaflet of the membrane lipid bilayer?(A) Choline phosphoglycerides(B) Ethanolamine phosphoglycerides(C) Inositol phosphoglycerides(D) Serine phosphoglycerides10. All the following processes occur rapidlyin the membrane lipid bilayer except(A) Flexing of fatty acyl chains(B) Lateral diffusion of phospholipids(C) Transbilayer diffusion of phopholipids(D) Rotation of phospholipids around their longaxes11. Which of the following statement iscorrect about membrane cholesterol?(A) The hydroxyl group is located near the centreof the lipid layer(B) Most of the cholesterol is in the form of acholesterol ester(C) The steroid nucleus form forms a rigid, planarstructureMCQs IN BIOCHEMISTRY2(D) The hydrocarbon chain of cholesterol projectsinto the extracellular fluid12.

10 Which one is the heaviest particulatecomponent of the cell?(A) Nucleus(B) Mitochondria(C) Cytoplasm(D) Golgi apparatus13. Which one is the largest particulate of thecytoplasm?(A) Lysosomes(B) Mitochondria(C) Golgi apparatus(D) Entoplasmic reticulum14. The degradative Processess are categorizedunder the heading of(A) Anabolism(B) Catabolism(C) Metabolism(D) None of the above15. The exchange of material takes place(A) Only by diffusion(B) Only by active transport(C) Only by pinocytosis(D) All of these16. The average pH of Urine is(A) (B) (C) (D) The pH of blood is when the ratiobetween H2CO3 and NaHCO3 is(A) 1 : 10(B) 1 : 20(C) 1 : 25(C) 1 : 3018. The phenomenon of osmosis is oppositeto that of(A) Diffusion(B) Effusion(C) Affusion(D) Coagulation19.