Molecular Biology Concluding Test Questions PDF

[Molecular Biology concluding test nr. 1 ] [ **CS Questions**] CS Which bond ensures the primary structure of proteins: A. Hydrogen bond B. Glycosidic bond C. Polypeptide bond D. Hydrophobic bond E. Phosphodiester bond ANSWER: C CS Which bond ensures the secondary structure of protein:...

[Molecular Biology concluding test nr. 1 ] [ **CS Questions**] CS Which bond ensures the primary structure of proteins: A. Hydrogen bond B. Glycosidic bond C. Polypeptide bond D. Hydrophobic bond E. Phosphodiester bond ANSWER: C CS Which bond ensures the secondary structure of protein: A. Hydrogen bond B. Glycosidic bond C. Polypeptide bond D. Hydrophobic bond E. Phosphodiester bond ANSWER: A CS Which bonds participate in formation of the quaternary structure of proteins: A. Hydrogen bond B. ***Ionic bond*** C. ***Hydrophobic*** bond D. Van der Waals attraction E. All mentioned above ANSWER: E CS What is the name of the primary structure of protein? A. Polypeptide chain of amino acids B. ***Alpha helix*** C. ***Beta sheets*** D. Polynucleotide chain E. Double helix ANSWER: A CS What is the name of the secondary structure of protein? A. Polypeptide chain of amino acids B. ***Alpha helix, Beta sheets*** C. Loops D. Polynucleotide chain E. Double helix ANSWER: B CS What is an example of quaternary structure of proteins? A. Keratin B. ***Hemoglobin*** C. ***Myosin*** D. Fibroin E. Collagen ANSWER: B CS What kind of bond is responsible for primary structure of DNA? A. Hydrogen bond B. Glycosidic bond C. Polypeptide bond D. Hydrophobic bond E. Phosphodiester bond ANSWER: E CS Which bonds are responsible for secondary structure of DNA? A. Hydrogen bond B. Glycosidic bond C. Polypeptide bond D. Hydrophobic bond E. Phosphodiester bond ANSWER: A CS What is the name of primary structure of DNA? A. Polypeptide chain of amino acids B. ***Alpha helix*** C. ***Beta sheets*** D. Polynucleotide chain E. Double helix ANSWER: D CS What is the name of secondary structure of DNA? A. Polypeptide chain of amino acids B. ***Alpha helix*** C. ***Beta sheets*** D. Polynucleotide chain E. DNA double helix ANSWER: E CS What is an example for DNP? A. Ribosome B. ***Chromosome*** C. ***Beta sheets*** D. Polynucleotide chain E. Double helix ANSWER: B CS What is an example for RNP? A. Ribosome B. ***Chromosome*** C. ***Beta sheets*** D. Polynucleotide chain E. Double helix ANSWER: A CS What is the mechanism of the third level (loops) of DNA package? A. **DNA interacts with histones** B. ***interaction between SAR (MAR) and scaffolds*** C. ***Phosphorilation of H1 histones*** D. dNTP connection into a polynucleotide chain E. Hydrogene bonding between two strands of double helix ANSWER: B CS What is the mechanism of the solenoid level of DNA package? A. **DNA interacts with histone octameres** B. ***interaction between SAR (MAR) and scaffolds*** C. ***Phosphorilation of H1 histones*** D. dNTP connection into a polynucleotide chain E. Hydrogene bonding between two strands of double helix ANSWER: C CS What is the mechanism of the nucleosome level of DNA package? A. **DNA interacts with basic proteins - histones** B. ***interaction between SAR (MAR) and scaffolds*** C. ***Phosphorilation of H1 histones into solenoid fibre*** D. dNTP connection into a polynucleotide chain E. Hydrogene bonding between two strands of double helix ANSWER: A CS Which nitrogenous base is not present in an RNA nucleotide? A. **Thymine** B. ***Uracil*** C. ***Adenine*** D. Guanine E. Cytosine ANSWER: A CS Three hydrogen bonds are between: A. **Thymine and Adenine** B. Guanine and Cytosine C. ***Uracil and Thymine*** D. ***Adenine and Guanine*** E. Cytosine and Thymine ANSWER: B CS Two hydrogen bonds are between: A. **Thymine and Adenine** B. Guanine and Cytosine C. ***Uracil and Thymine*** D. ***Adenine and Guanine*** E. Cytosin and Thymine ANSWER: A CS Which bonds connect the both strands of DNA double helix together: A. Hydrogen bonds B. Glycosidic bonds C. Polypeptide bonds D. Hydrophobic bonds E. Phosphodiester bonds ANSWER: A CS Which bonds connect nucleotides into a polynucleotide chain: A. Hydrogen bonds B. Glycosidic bonds C. Polypeptide bonds D. Hydrophobic bonds E. Phosphodiester bonds ANSWER: E CS For which organelles are the proteins synthesized on ribosomes of rER: A. sER B. GA C. rER D. Lysosome E. All mentioned above ANSWER: E CS Which protein is synthesized on ribosomes of rER: A. actin B. tubulin C. DNA polymerase D. RNA polymerase E. Acid lipase ANSWER: E CS Which protein is modified in GA: A. actin B. tubulin C. DNA polymerase D. RNA polymerase E. Acid lipase ANSWER: E CS Which protein is synthesized on ribosomes of rER: A. actin B. tubulin C. Insulin receptor D. DNA polymerase E. RNA polymerase ANSWER: C CS Which protein is modified in GA: A. actin B. tubulin C. Insulin receptor D. DNA polymerase E. RNA polymerase ANSWER: C CS Which protein is synthesized on free ribosomes: A. Collagen B. Acid lipase C. Insulin receptor D. Tubulin E. Isomerase ANSWER: D CS In which organelle is an acid ph (pH=5): A. nucleolus B. Mitochondria C. GA D. Peroxisome E. Lysosome ANSWER: E CS Which protein is synthesized on free ribosomes: A. Collagen B. Acid lipase C. Insulin receptor D. DNA polymerase E. Isomerase ANSWER: D CS Cardiolipin is a special lipid in: A. nucleolus B. Mitochondria C. GA D. Peroxisome E. Lysosome ANSWER: B CS Where are synthesized proteins: A. sER B. Free ribosomes and Ribosomes attached to rER C. GA D. Peroxisome E. Lysosome ANSWER: B CS Where are modified proteins: A. sER B. Ribosomes C. GA and cytosol D. Peroxisome E. Lysosome ANSWER: C CS Where happens biogenesis of ribosomes: A. nucleolus B. sER C. GA D. Peroxisome E. Lysosome ANSWER: A CS ATP - synthetase is an enzyme of: A. nucleolus B. Mitochondria C. GA D. Peroxisome E. Lysosome ANSWER: B CS Where happens detoxification of nicotine: A. nucleolus B. Mitochondria C. GA D. sER E. Lysosome ANSWER: D CS Ribophorin belongs to: A. nucleolus B. Mitochondria C. rER D. sER E. Lysosome ANSWER: C CS Which protein participates in formation of vesicles: A. Actin B. Clathrin C. Lipase D. Protease E. Synthetase ANSWER: B CS Which organelle has no membrane: A. nucleolus B. Mitochondria C. rER D. sER E. Lysosome ANSWER: A CS Lipids are synthesized in: A. nucleolus B. Mitochondria C. rER D. sER E. Lysosome ANSWER: D CS Find the monomer of DNA A. dATP B. ATP C. Val D. Ser E. dUTP ANSWER: A CS Examples for active transport: A. Na-K- pump B. Simple diffusion C. Osmosis D. Facilitated diffusion E. Ionophores ANSWER: A CS Oxygen, Water and carbon dioxide are transported through the cell membrane via: A. Na-K- pump B. Simple diffusion C. Osmosis D. Facilitated diffusion E. Ionophores ANSWER: B