Please solve question 10, 11 a b c 10. This molecule.... (select all that apply)
ID: 270543 • Letter: P
Question
Please solve question 10, 11 a b c
10. This molecule.... (select all that apply) NH a. has a purine base. b. is a nucleotide. c. contains a deoxynucleic acid. d. contains uracil. e. is phosphorylated at the 3' position. f. none of the above. NH2 HO 11a. The following molecule is (select one)... u. a carbohydrate. v. an amino acid. w. a lipid. x. a nucleic acid. HOH OH 11b. The following molecule is (select all that apply) u. a ketose. v. an aldose. w. a tetrose x. a pentose. y a hexose z. none of the above. HOH HOH ow many stereoisomers are there for this molecule?Explanation / Answer
10. None of the above.
It is a nucleoside Guanosine. (Guanine with ribose Sugar)
11a. a carbohydrate (L- Idose)
11b. an aldose and a hexose (L- Idose)
11c. L-Idose is a C-5 epimer of D-glucose. it has 16 stereoisomers.
The maximum number of optical isomers is 2n, where n is the number of chiral centres.
In L- Idose, n=4, so 24 = 16 possible isomers.