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Interpretation:
The following blanks should be filled with suitable substances as mentioned below:
| ……….. Adenosine | …….. Uridine |
| ……….. Cytidine 5'-monophospahe | …….. Deoxycytidine 5'triphosphate |
| ……….. Guanine | ……… Deoxyuridine |
| ……….. Thymine | ………. Guanosine 5'-diphosphate |
| ……….. Deoxyguanosine | ………. Thymidine triphosphate |
- A nucleobase
- A ribonucleoside
- A ribonucleotide
- A deoxyribonucleoside
- A deoxyribonucleotide
- A dinucleotide
Concept Introduction:
A nucleobase is a biological compound. It is basically as nitrogen containing base. They form nucleosides and nucleotides which are made up of
Answer:
| (b) A ribonucleoside-Adenosine | (b) A ribonucleoside -Uridine |
| (c) A ribonucleotide-Cytidine 5'-monophosphate | (e) A deoxyribonucleotide- Deoxycytidine 5'triphosphate |
| (a) A nucleobase-Guanine | (d) A deoxyribonucleoside-Deoxyuridine |
| (a) A nucleobase-Thymine | (c) A ribonucleotide- Guanosine 5'-diphosphate |
| (d) A deoxyribonucleoside-Deoxyguanosine | (e) A deoxyribonucleotide-Thymidine triphosphate |
Explanation of Solution
The structure of Adenosine and uridine are as follows:
Adenosine Uridine
Both are ribonucleoside as they contain ribofuranose attached by glycosidic bond to the purine nucleoside.
The structure of Cytidine 5'-monophosphate and guanosine 5'-diphosphate are as follows:
Cytidine 5'-monophosphate Guanosine 5'-diphosphate
The nucleoside cytidine and guanine are attached to phosphoric acid through ester linkage, thus, they form a nucleotide. There is also a pentose sugar ribose hence, they are classified as a ribonucleotide. There is one phosphate group in cytidine 5'-monophosphate and two phosphate groups in guanosine 5'-diphosphate.
Guanine and thiamine both are nucleobase, as they are nitrogen containing bases. They are found in nucleic acids DNA and RNA.
The structures are as follows:
Guanine Thymine
Deoxyguanosine and deoxyuridine are deoxyribonucleoside as they contain deoxyribose without phosphate group.
The structures are as follows:
Deoxyguanosine Deoxyuridine
Deoxycytidine 5'triphosphate and thymidine triphosphate are deoxyribonucleotide as they contain deoxyribose with phosphate group attached to nucleoside.
The structures are as follows:
Deoxycytidine 5'triphosphate Thymidine triphosphate
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Chapter 4 Solutions
BIOCHEMISTRY BOOKS ALC&MOD MST/ET PKG
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