Biochemistry end of 1st sem 2021.pdf

KMTC/QP-08/EPS KENYA MEDICAL TRAINING COLLEGE FACULTY OF CLINICAL SCIENCES DEPARTMENT OF CLINICAL MEDICINE...

KMTC/QP-08/EPS KENYA MEDICAL TRAINING COLLEGE FACULTY OF CLINICAL SCIENCES DEPARTMENT OF CLINICAL MEDICINE END OF SEMESTER EXAMINATION FOR MARCH 2021 CLASS YEAR 1 SEMESTER I - PAPER: MEDICAL BIOCHEMISTRYI TIME: 2 HOURS (2:00PM 4:00 PM) DATE: 4h August, 2021 INSTRUCTIONS 1. This paper consists of: Section ! (20 Miuitipie Choice Questions) Section 2 (4 Short Answer Questions) Section 3 (2 Long Answer Question) 2. Attempt ALL Questions sheets provided and on the question NUMBER on all the answer 3. Write your ADMISSION paper. handed in at the end of the examination 4. Ensure that all examination answer scripts are IN and OUT examination register provided 5. Ensure you sign in the 'sign EXAMINATIONNUMBER. Page 1 of4 Department of Clinical Medicinee  KMTC/QP-08/EPS Choice Questions) (20 MarkS) Section 1 (20 Multiple referred to as a "Universal solvent "? 1. Why is water a) It is amphoteric. r o o m temperature. odorless liquid at b) Tasteless and substances. dissolve many c) Its ability to other. bonds with each d) It forms hydrogen trace element? 2. Which among the following is a a) Zinc. b) Sulphur. c) Nitrogen. d) Carbon. natural source of amino Acids 3. Identify the a) Beef b) Water c) Sugar d) solvents EXCEPT ONE 4. Below are basic body electrolytes a) Sodium(Na) b) Potassium(K") c) Calcium(Ca') d) Lead(Pb) of soluble proteins? 5. Which of the categories below comprises Globulins and Histones a) Albumins, Metalloprotein Phosphoprotein and b) Lipoprotein, Elastin and Keratins c) Collagens, Ferritin and Actin. d) Myoglobin, fluid consistency 6. What gives water its a) Cohesive forces b) Adhesive forces c)Weak hydrogen bonds d) Oxygen atoms for polysaccharides 7. ldentify the storage a) Maltose b) Lactose c) Starch d) Sucrose 8. One of the amino acids listed below is Non-polar/ Aliphatic a.Glycine b. Histidine C.Arginine d. Tyrosine Page 2 of 4 Medicine Department of Clinical  KMTC/QP-08/EPS or digestion? Which of the discases below is not associated with lipid absorption 9. a) Chyluria b) Chylothorax c) Pancreatitis d) Lactosuria of T0. Cell properties are determined by portio: of the sequence a.RNA b. Peptide c.DNA d. Nucleotide Building blocks for proteins are 11. a. Amino acids b. Glucosec c. Polypeptide d. Oligo polypeptide liver disorder 12. What c a u s e s fatty liver to secrete lipoprotein a) Failure of herbal Medicine Excessive use of b) c) Excessive alcoholism diet Iack of balanced carbohydrate d) one is NOT a'simple Concerning carbohydrates; Which 13. a) Gaiactose b) Glucose c)Maltose d) Fructose condition leads to which 14. Lack of Insulin a. Diabetes Mellitus b. Diabetes Insipidus c. Obesity d. Appendicitis blood coagulation factor involved in blood clotting 15. Identify the a) Prothrombin b) Thrombin c) Antitrypsin and maintaining muscle and nerve d) Fetoprotein blood volume is important for regulating 16. Which electrolyte function'? a. Na b. CI c. K d. HCO is called from mRNA 17. Removal of introns a. Splicing Page 3 of 4 Department of Clinical Medicine  KMTC/QP-08/EPS b. Polyad hydration c. Elongation d. Editing 18. Condition for excessive levels of potassium in blood a.Hypernatremia b. Hyperchloremia c.Hyperkalemia d. Hypermagnesemia 19. Respond to the following concerning water; about 60-70% of body water exist in the a.Extracellular compartments b. Joint space c.Intravascular space d. Intracellular fluid compartment information from one generation to the next 20. Molecules that allow organisms to transfer genetic are called a. Amino acids b. Nucleotides c. Nucleic acids d. Proteins Section 2 (4 Short Answer Puestions)(40 Marks) Medicine (10marks) 1. importance of biochemistry in Discuss the 2. Briefly discuss protein denaturation (10marks) in each case 3. Define the following and give examples a) Monosaccharides (3marks) (3marks) b) Oligosaccharides (4marks) c) Polysaccharides the basis of R-group giving examples (10marks) 4. Classify Amino acids on QUESTIONS-(40 MARKS) SECTION C: LONG ANSWER their functions and discuss the various classifications giving examples. 1. Define lipids, enumerate (20marks) Give functions of proteins 2. Classify proteins based on composition giving examples. (20marks) Page 4 of 4 Clinical Medicine Department of