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Transcript
NURSING LIJAN DONE BY: AYAT HAROUN NURSING LIJAN 1. DONE BY: AYAT HAROUN Fructose is metabolized by A. fructose 1-phosphate pathway B. fructose 6-phosphate pathway C. glyceraldehyde 3-phosphate pathway D.both (a) and (b) Answer: Option D 2. A common way that cells capture the energy released during the breakdown of large molecules is to add electrons to smaller, specialized molecules that can accept them. This process of electron acceptance is otherwise known as A.biosynthesis B. Metabolism C. reduction D.Catalysis Answer: Option C 3. Humans are unable to digest A. Starch B. complex carbohydrates C. denatured proteins D.Cellulose Answer: Option D 4. How many ATP equivalents per mole of glucose input are required for gluconeogenesis? A.2 B. 6 C. 8 D.4 Answer: Option B 5. During vigorous exercise, pyruvate produced by glycolysis is converted to A. Acetate B. Lactate C. monosodium phosphate D.pyruvic acid Answer: Option B 6. Gluconeogenesis uses A. 3 ATPs and 2 GTPs per glucose B. 2 ATPs and 1 GTPs per glucose C. 3 ATPs and 3 GTPs per glucose D.4 ATPs and 2 GTPs per glucose Answer: Option D NURSING LIJAN 7. Gluconeogenesis is the A. formation of glycogen B. breakdown of glucose to pyruvate C. breakdown of glycogen to glucose D.synthesis of glucose from non-carbohydrate precursors Answer: Option D 8. Hydrolysis of lactose yields A. galactose and fructose B. galactose and glucose C. glucose and fructose D.fructose and galactose Answer: Option B 9. Two major products of pentose phosphate pathway are A. nicotinamide adenine dinucleotide and ribose 5-phosphate B. flavine adenine dinuclueotide and glucose 5-phosphate C. FAD and CoA D.NADPH and NAD Answer: Option A 10. Pyruvate is initially converted to which of the following in the gluconeogenesis? A.Glycerol B. Phosphoenol pyruvate C. Oxaloacetate D.Acetyl CoA Answer: Option C 11. The conversion of pyruvate to lactate is catalysed by A.pyruvate carboxylase B. lactate dehydrogenase C. pyruvate dismutase D.pyruvate decarboxylase Answer: Option B Which of the following can act as precursors for gluconeogenesis? A.Lactate B. Glycerol C. Alanine D.All of these Answer: Option D 13. The sugar which forms major component of nucleic acids is A.Ribose B. Galactose C. mannose D.Maltose Answer: Option A 14. Insulin A.stimulates gluconeogenesis and glycolysis DONE BY: AYAT HAROUN NURSING LIJAN DONE BY: AYAT HAROUN B. stimulates gluconeogenesis and inhibits glycolysis C. inhibits gluconeogenesis and glycolysis D.inhibits gluconeogenesis and stimulates glycolysis Answer: Option D 1. The key enzyme in the regulation of fatty acid synthesis is A. acetyl CoA carboxylase B. AMP activated proteinkinase C. protein phosphatase D. none of these Answer: Option A 2. HDLs are synthesized in A.Blood B. Liver C. intestine D.Pancreas Answer: Option B 3. Triacylglycerols are A. soluble in water B. insoluble in water C. soluble in water at elevated temperature D. partially soluble in water Answer: Option B 4. Animals cannot convert fatty acids into glucose because A. acetyl CoA can not be converted to pyruvate B. absence of malate synthase C. absence of dehydrogenase D. absence of a-ketoglutarate dehydrogenase NURSING LIJAN DONE BY: AYAT HAROUN Answer: Option A 5. In eukaryotes fatty acid breakdown occurs in A. mitochondrial matrix B. Cytosol C. cell membrane D. endoplasmic reticulum Answer: Option A 6. Phospholipid contains A. hydrophilic heads and hydrophobic tails B. long water-soluble carbon chains C. positively charged functional groups D. both (b) and (c) Answer: Option A 7. VLDLs are synthesized in A.blood B. liver C. intestine D.pancreas Answer: Option B 8. How many ATPs are formed during complete oxidation of palmitate? A.35 B. 96 C. 129 Answer: Option C 1. Beta pleated sheets are examples of protein's A. primary structure B. secondary structure C. tertiary structure D. quaternary structure D.131 NURSING LIJAN Answer: Option B 2. Sickle cell disease is due to A. a mutation in the beta chain of Hb B. a mutation in the alpha chain of Hb C. infection with a parasite D. none of the above Answer: Option A 3. The four subunits of the hemoglobin (Hb) gene represent protein's A. primary structure B. secondary structure C. tertiary structure D. quaternary structure Answer: Option D 4. On the ribosome, mRNA binds A. between the subunits B. to the large subunit C. to the small subunit D. none of these Answer: Option C 5. Which of the following is not a necessary component of translation? A. Anticodon B. mRNA C. Ligase D. Amino acid Answer: Option C 6. Amino acids are joined together into a protein chain by which of the following? A. Transfer RNA DONE BY: AYAT HAROUN NURSING LIJAN DONE BY: AYAT HAROUN B. DNA polymerase C. Hydrogen bonds D. Messenger RNA Answer: Option A 7. Phosphorus is taken up by the cell during the process of A. carbohydrate synthesis. B. protein synthesis, C. lipid synthesis. D. ATP synthesis. Answer: Option D 8. Which of the following is not necessary for protein synthesis to occur, once transcription is completed? A.tRNA B. Ribosomes C. mRNA Answer: Option D 9. Ribosomes select the correct tRNAs A. then bind to the appropriate mRNA B. solely on the basis of their anticodons C. depending on their abundance in the cytosol D. with the least abundant anticodons Answer: Option B 10. The peptidyl transferase reaction occurs A. on the large subunit B. on the small subunit C. between the subunit D. none of these D.DNA