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- 2. A prosthetic group of a protein is a non-protein structure that is: A) a ligand of the protein. B) a part of the secondary structure of the protein. D C) a substrate of the protein. D) permanently associated with the protein. E) transiently bound to the protein.2. Classification of amino acids: a) by the structure of carbon chain; b) by the position of amino group; c) by the presence of functional groups; d) by the polarity of the radical; e) by the ability to be synthesized in the human body.3. Which of the major types of biomolecules is never found in a polymeric form? A) amino acids B) carbohydrates C) nucleotides D) lipids E) none of the above
- 6. Nucleoside triphosphates a) are important in the building of nucleic acids b) always contain the 5-carbon sugar ribose c) can be important sources of cellular energy in metabolism d) a and c e) a, b, c23. Which is not a function of proteins: a) catalyzing reactions b) structural properties such as mechanical strength, shape, flexibility c) carries genetic information d) movement or contraction21. Polymerization of amino acids results in: a) polypeptides b) polynucleotides c) polysaccharides d) polylipids
- 4. Which of the following biopolymers is correctly paired with the bond that forms between the monomers? A) protein: ester bond B) polysaccharide: glycosidic bond C) DNA: phosphate bond D) RNA: phosphate bond E) all of the above7. All amino acids have a chiral a-carbon EXCEPT A) Proline B) Alanine C) Glycine D) Tryptophan 8. In proteins, amino acids are linked by peptide bonds; in polynucleotides, nucleotides are linked by A) Phosphoanhydride bonds B) 3'-5'phosphodiester bonds C) 5'-3'phosphodiester bonds D) Phosphoester bonds 9. The melting temperature of DNA A) Increases B) Decreases C) Stays the same D) Has no relation Please I need the solution in 10 minutes A) Higher B) Lower C) Similar D) Zero with increasing G plus C content. 10. Supercoiled DNA has same number of base pairs when subjected to gel electrophoresis. C) a phosphodiester bond D) a 2' -H group mobility when compared relaxed DNA with the 11. The difference between a nucleoside and a nucleotide is A) the presence of uracil B) a phosphate group 12. Tyrosine and tryptophan are less hydrophobic than phenylalanine because A) Phenylalanine has an indole group B) Tyrosine and tryptophan have smaller R groups C) Phenylalanine is a phenol D)…63. Which of the following proteins facilitates the transport of neurotropic viruses to cell bodies of neurons in the central nervous system? A) Actin B) Dynamin C) Dynein D) Kinesin E) Vimentin
- 16. Which nitrogenous base is only found in RNA: a) adenine b) guanine c) thymine d) uracilII. Give biomolecules found in the animal body, characterize its type, a) organic or inorganic; b) carbohydrate, lipids, protein or nucleic acid c) its monomers, d) indicate its biological function/s and, e) disease or impairment due to its excess or deficiency in the animal body. Biomolecule Type Monomer 1. Biological Function/Importance Disease due to excess/and deficiencyWhich of the following is abundantly found in collagen? a) Tryptophan b) Alanine c) Glycine d) Serine