some biology homework for covalent bonds? | Education Reference

Question by Cory: some biology homework for covalent bonds?
I know generally what covalent bonds are but i cant seem to figure out what type of covalent bonds are for protein, RNA, and DNA. If an individual can aid me and tell me why i would appreciate it a lot.

Ideal answer:

Answer by shitstainz
Nucleotides are linked collectively by ? COVALENT BONDS ? among phosphate of one nucleotide and sugar of subsequent. These linked monomers turn into the phosphate-sugar backbone of nucleic acids. Nitrogenous bases extending from this phosphate-sugar backbone like teeth of a comb.

Just before a cell divides, it ought to make a copy of its DNA so that each parent and daughter cell have a complete copy of genetic info. This approach of copying the double-stranded DNA molecule is named replication.

D N A ?- Hydrogen bonds kind among specific bases of two nucleic acid chains, forming a stable, double-stranded DNA molecule, which appears like a ladder. 3 H bonds kind in between bases cytosine (C) and guanine (G), which always pair up with each other amongst two nucleic acid chains.
In a cell, DNA replication must happen ahead of cell division. Prokaryotes replicate their DNA all through the interval in between cell divisions. In eukaryotes, the timing of replication is very regulated.

Here is a link

http://genetics.suite101.com/post.cfm/nucleic_acids_and_replication

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R N A ? RNA, unlike DNA, binds to AURINTRYCARBOXYLIC ACID through covalent bonds.

# Covalent bonds ? sharing of electrons

1. The strongest of the 3 bonds.
1. The C bond has power of roughly 80 KCal/mole (C-H:99, C-O:84, C-N:70)
1. a calorie is the heat it requires to raise the temperature of 1 gram of water 1?C.
two. Interestingly, the so named high energy covalent bond employed in ATP is only 7 Kcal/mole.
two. Used in construction to hold all atoms together in forming biological molecules. ( The covalent bonds holding with each other amino acids (peptide bonds) to kind proteins, and the covalent bonds holding with each other nucleotides to kind DNA and RNA are specifically nicely investigated.)
3. The forming and breaking of covalent bonds (along with oxidation-reduction reactions) involve the prime way of storing, forming, and utilizing power in living organisms.
1. Each and every chemical reaction includes power
two. Most biological reactions are under the course of specific proteins known as enzymes. These reactions lead to most cellular structural and energetic changes.

In DNA the bases are thymine, adenine, cytosine, guanine.
In RNA the bases are uracil, adenine, cytosine, guanine.

In both, the polymer is created by covalent bonds among the sugar and phospate groups of neighboring nucleotides. The bases sort of stick out from the molecule. DNA is generally doublestranded so that two strands are held with each other by hydrogen bonds amongst the bases in the pairing rule A bonds with T and C bonds with G.

DNA is situated in the nucleus of a eukaryotic cell. RNA is mostly in the cytoplasm, but some forms of RNA can pass between the nucleus and cytoplasm. DNA is the major retainer of genetic information that is transferred from one generation to the following. RNA has a amount of functions which includes:

Here IS A Hyperlink

http://www.mrs.umn.edu/~goochv/CellBio/lectures/chem/chem.html

What do you think? Answer beneath!

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