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BIOCHEM 2B03 Study Guide - Final Guide: Ribosomal Rna, Glycosidic Bond, Messenger Rna

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gunnergang
15 Jun 2022
School
McMaster University
Department
Biochemistry
Course
BIOCHEM 2B03
Professor
Kristin Hope

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Document Summary

Nucleoside base is linked to sugar via glycosidic bond. Cyclic nucleotides (camp, cgmp) can be used as energy and movement, not just dna. Phosphodiester bond links sugar at the 5" c with o on phosphate. The link is 3 to 5 because new nucleotide is added on the 3" oh. Ribosomal rna the basis of structure and function of ribosomes ribosome proteins are complex secondary structures due to h bongs between strands. Messenger rna carries message for protein synthesis. A single prokaryotic mrna may contain information for the synthesis of several polypeptide chains within its nucleotide sequences. Eukaryotic mrna encodes for one polypeptide and have many exons and introns with snrnp and splicing. Transfer rna carries aa for protein synthesis small (less than 100 bp) Each aa has at least one unique trna which carries it to the ribosome. Addition of h2o molecule and breaking apart molecules.

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Related Questions

please provide an specific biomolecules example for the following bonds. for example glycosidic bonds - sugars, peptide bonds - insulin

here we go
1. nucleoside
2. nucleotide
3. phosphoanyhydrite bond
4. phosphoester bond
5. phosphodiester bond
6. ionic bond
7. hydrogen bond
8. van der waal attractions
9. hydrophobic attractions

thanks

On a growing strand of DNA the nucleotide that is at the 3Ҁ™ end is bound to the next "new" nucleotide to be added by DNA polymerase. On these two nucleotides, indicate which atoms on these nucleotides are covalently bonded to form the phosphodiester linkage that joins the new nucleotide to the growing strand. (Hint: one atom is oxygen and the other is phosphorus.)

Which of the following is FALSE about ribose and nucleotide and nucleic acid synthesis?

a) Ribose can be synthesized in virtually all tissues

b) Since ribose is not a significant constituent of systemic blood,tissues must satisfy their own requirement for this important precursor of nucleotides.

c) It is necessary to have a completely functioning pentose phosphate pathway for a tissue to synthesize ribose phosphates.

d) The pentose phosphate pathway provides ribose residues for nucleotide and nucleic acid synthesis.

e) Although muscle tissue contains only very small amounts of glucose-6- phosphate dehydrogenase and 6-phosphogluconate dehydrogenase, it is capable, like most other tissues, of synthesizing ribose 5-phosphate for nucleotide synthesis by a reversal of the nonoxidative phase of the pentose phosphate pathway utilizing fructose 6-phosphate.