Premed 44 Final Bio Exam - PDF

premed 444 / ned Bio www.I is a bit I WEB www oiyyW m 1-Lactose intolerance is condition caused by the decrease the enzyme.which type the of the enzyme caused this? lactase 2-the p...

premed 444 / ned Bio www.I is a bit I WEB www oiyyW m 1-Lactose intolerance is condition caused by the decrease the enzyme.which type the of the enzyme caused this? lactase 2-the principal fuel for the brain is ? Glucose 3-it’s the storage for carbohydrate in human body? Glycogen 4-Which of the following nutrients helps muscle contraction during exercise? Glycogen/ Glucose ‫عمرو قال كلهم صح‬.‫محد عارف بس د‬ 5-which of the following of mucopolysaccharides act as anticoagulants? Heparin 6-Which of the following is a characteristic of saturated FAs? Have single C-C bonds Have Strong attractions between fatty acid chains. They are solids at room temperature. All of above 7- Which of the following are two types of unsaturated FAs that mammals cannot synthesize? Omega 3 ,Omega 6 8-Which of the following is a group of eicosanoids whose production is inhibited by aspirin? Prostaglandin 9-It stores lipids in adipose tissue : triglyceride 10-It is important for the formation of the cell membrane : Phospholipid 11- which of the following act as lung surfactant ? Dipalmityl lecithine 12-Which of the following amino acids does not have a chiral carbon? glycine 13-Which of the following is a pure ketogenic amino acid? Leucine 14-In the primary structure of a protein, what type of bond is responsible for linking this structure? peptide bonds 15-Which of the following is a brous protein rich in proline and hydroxyproline? collagen 16-forms a large proportion of all plasma protein? Albumin =====>‫جاء بامليد‬ 17-The form of the enzyme in nature is...? Protein 18-is an enzyme with its non-protein component (coenzyme or cofactor)? Holoenzyme 19-Which of the following is true about the mechanism of enzymes? It is act by reducing activation energy 20-blocking enzyme action by block the active site it is: competitive inhibition 21-which of the following catalyze the same reaction in di erent tissues ?Isoenzyme 22-a non substrate binding with a speci c site to do control and biological processes, what is the name of the this site? Aollsteric regulator 23-It acts as a negative regulator which inhibiting the rst enzyme , caused by the end product in a serious of reaction is called? Feedback inhibition 24-in Michaelis menten equation Low Km indicate ? high a nity to substrat 25 -Which of the following enzymes plays an important role in diagnosing a patient with a myocardial infarction? Creatine kinase 26- Which of the following is a water-soluble vitamin? vitamin C 27-Which of the following vitamins allows for dim light vision? Retinal 28-Which of the following vitamins maintains calcium levels by uptake from the intestines? D 29-which of the following is active form of vitamin D? 1-25 dihydroxy cholecalciferol 30-Poor bone mineralization of bones (osteomalacia)as a result of vitamin de ciency...? D 31-Which of the following fat-soluble vitamins acts as antioxidants? E 32-Prolonged prothrombin time is a medical condition resulting from vitamin de ciency...? K 33-Which of the following vitamins enhance iron absorption? C 34-Which of the following of vitamins that acts as a coenzyme (TPP) in carbohydrate metabolism? thiamine 35-which of the following vitamins causes Brei Brei? B1 36-Which of the following pairs are Not correct attached? B2-pernicious anemia 37-Which of the following vitamins plays a role in synthesis of cholesterol? B3 38-Vitamin ribo avin plays a role in preventing of ? Stomatitis 39-Which of the following is a cause of malabsorption of vitamin 12? intrinsic factor 40-Trace elements are named so because they are required daily less than? 100 mg 41-Which of the following minerals is necessary for the formation of bones and teeth? calcium 42- De ciency of calcium leads to…? A-Tetany B-Rickets in children C-Osteomalacia in adults D-Fever milk in lactating animal E-All of above 43-Which of the following minerals an important role in component Nucleic acids and ATP? Phosphorus 44-Which of the following minerals acts as a cofactor for all enzymes such as the phosphate transfer reaction? magnesium 45-Which of the following minerals is the major cation in the extracellular uids of the body? Sodium 46-Hypernatreumia is a condition resulting from a high level of...… in the blood? Sodium 47- low potassium level in blood it’s Known as: hypokalaemia 48-Which of the following minerals has a role in activating saliva and pancreatic enzymes? Chloride 49-Which of the following minerals is involved in the formation of hemoglobin? Iron 50-Microcytic hypochromic anemia (small RBCs) caused by a mineral de ciency? Iron 51- mineral is Important for regulation of body temperature, basal metabolic rate,  reproduction, and growth ? Iodine 52 -de ciency of iodine leads to ……? Goiter 53-Selenium is an essential component of which of the following enzymes? glutathione peroxidase 54- is the study of Change energy accompanying biomedical reactions? Bioenergetic 55-potential energy are organic molecules such as the carbohydrate, fats and proteins have structure that make them especially rich in …? Chemical energy 56-in Endergonic reactions: A-∆G is negative. B-Spontaneous reaction C-Products have more free energy than reactants D- Reactants have more free energy than the products groups adenosine phosphate 57-What does this following gure represent? ribose DP 58 - In the process of phosphorylation... How many ATP are there when NADH is oxidized? 3ATP 59-The mechanism of substrate level phosphorylation is characterised by? A-being a multistep reaction in mitochondria B-O2 is the nal acceptor of electrons to generate ATP C-occurring through the ETC within the inner mitochondria membrane D-one step direct phosphorylation from another substrate to ADP in cytoplasm or mitochondria 60- Which of the following sugars does not have a chiral carbon atom? 60 i Dihydroxyacetone Powered by TCPDF (www.tcpdf.org)