of amino acid structure varies among different amino acids? A) the long carbon-h
ID: 140495 • Letter: O
Question
of amino acid structure varies among different amino acids? A) the long carbon-hydrogen tai B) the presence of a central C atom C) the R group, or side chain D) the glycerol molecule that forms the backbone of the amino acid ls of the molecule 16) 913 In the above figure, the chemical reaction shown A) is a hydrolysis reaction C) joins two fatty acids together B) results in a peptide bond D) links two polymers to form a monomer 17) If all of the hydrogen bonds in a protein have been broken, the will still be intact. A) primary structure C) tertiary structure B) secondary structure D) quaternary structure 18) Which of the following is a major difference between RNA and DNA? A) type of sugar C) type of purines B) type of phosphate D) type of glycosidic bond 19) Whigh of the following descriptions best fits the class of molecules known as nucleotides? a nitrogenous base and a phosphate group B) a nitrogenous base and a sugar C) a nitrogenous base, a phosphate group, and a sugar D) a sugar and a purine or pyrimidine 20) The molecule shown the figure is a C) triacylglycerol D) phospholipid B) steroid A) fatty acicdExplanation / Answer
15. C. The R group or side chain.
The Side chain present in the amino acid varies in 20 different amino acids.
16. B. Result in a peptide bond.
Hydrolysis raection is a reverse process of peptides. The peptide bonds are hydrolysis and
gives a single amino acids.
17. Primary structure.
18. A. Type of Sugar
RNA - We have Ribose sugar - 2' of ribose have OH group.
DNA - We have Deoxy ribose where 2'OH group converted to 2'H group.
19. C.
Nucleotides = Nitrogenous base + Phosphate + Sugar
Nucleoside = Nitrogenous base + Sugar
Nucleobase = Nitrogenous base
20. B. Steroid
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