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Which of the following statements about proteins is FALSE?
a |
They can be hydrophobic, hydrophilic, or both. |
|
b |
They are composed of amino acids. |
|
c |
Their primary function is energy storage. |
|
d |
They have multiple levels of structural organization. |
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- The following are MAIN functions of protein in the body, EXCEPT: O Proteins form the enzymes needed for metabolic processes. O Proteins form the key components of the immune system, such as antibodies. O Proteins are responsible for transporting large molecules, like triglycerides, in the blood. O Proteins form hormones, such as insulin and epinephrine. O Proteins are the main fuel for most anaerobic exercises, like sprintingWhich of the following about the glycosylation of proteins in the ER is false? Dolichol phosphate serves as a lipid carrier. Oligosaccaryltransferase add the oligosaccharide to the protein. The oligosaccharide ‘tree’ is made up of glucose and mannose. Asn-X-Ser/Thr serves as the glycosylation site on the protein. Carbohydrates are added to the lipid carrier by glycosyltransferases.Unlike carbohydrates and fatty acids, protein shuld be supplied in regular basis. Why there is a need to supply protein more than the two macromolecules?
- Which of the following statements is not true about protein folding ? * Protein folding is a process by which a polypeptide chain form a stable 3D structure. Protein folding leads to loss of function and causes a wide range of diseases When protein is defolded, peptide bonds are not affected. Protein folding is essential for proper function of proteins.Which of the following is NOT a fat soluble vitammin? ve O C O A O EWhat is the term used to refer to the functional, folded conformation of proteins? Natural O Native O Intrinsic O Unique
- Which of the following foods is an example of a complementary protein? Green beans Red beans and rice Non-fat milk chicken breastWhich of the following statements concerning complete protein hydrolysis is incorrect? Primary structures are preserved Tertiary and secondary structures are disrupted All peptide bonds are broken Water is a reactant in the processWhich statement is TRUE regarding complete proteins? Complete proteins can be synthesized from carbon skeletons. O Complete proteins can only be obtained from animal proteins. O Complete proteins lack one or more essential amino acids. O Complete proteins provide all of the essential amino acids. क Question 24
- Proteins undergo  a process, called folding to establish their final, functional configuration. Amino acids them selves are covalently, bound to gather, but for other forces are needed to maintain a functional proteins structure. Briefly describe these forces.Which of the following amino acids are most likely to be present on the surface of Protein A in the picture below? Protein A F-M-A-Y-I-L S-E-R-T-D-K G-L-S-M-A-I P-G-G-T-F-WWhich level of protein folding is formed by interactions between amino acid side chains/R groups? primary secondary tertiary quaternary