Nucleic acids save on computer the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; to add phosphorous (C, H, O, N, and P). Nucleic acids are very huge macromolecules composed of recurring units of the same building blocks, nucleotides, similar to a pearl necklace make of countless pearls. We can likewise define main point acids as polymers assembled from many smaller covalently external inspection monomers.
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Nucleic acids are the molecule that function in encoding, transmitting and also expressing hereditary information in ours cells.
All nucleotides are made of 3 subunits: one or much more phosphate groups, a pentose sugar (five-carbon sugar, either deoxyribose or ribose), and also a nitrogen-containing basic (either adenine, cytosine, guanine, thymine, or uracil). See number (PageIndex1) below.
Figure (PageIndex1) A main point acid brief fragment made of 5 nucleotides is shown on the right; one nucleotide is enclosed in a red rectangle. Each nucleotide is made of among the five nitrogenous bases, a pentose street (ribose or deoxyribose) and a phosphate group. Ribonucleic acid (RNA) has actually ribose for a pentose, vice versa, deoxyribonucleic acid (DNA) has actually deoxyribose. The five nitrogenous bases room classified as pyrimidines (cytosine, thymine, and uracil), which have actually a ring structure; and purines (adenine and guanine), which have actually a double-ring structure. RNA molecule may have actually up come few-thousand nucleotides and also are singlestranded, conversely, DNA molecules have actually billions that nucleotides organized in 2 strings the nucleotides forming a helix. DNA, RNA, and proteins are related to each various other as shown in table (PageIndex1) below.
|DNA ( ightarrow)||is supplied to synthesize||RNA ( ightarrow)||which is supplied to synthesize||Proteins|
|Polymers of nucleotides||Polymer of nucleotides||Polymer that amino acids|
|Encodes amino mountain sequence the proteins||Transmits and also expresses info in DNA||Perform most cellular functions|
Figure (PageIndex2) DNA and also RNA share three nucleotides in your composition (cytosine, guanine, and adenine), and they differ in uracil (found only in RNA) and also thymine (found just in DNA). RNA is single strand, whereas DNA in double strand
|DNA||Encodes and transmits inherited genetic information from one generation to the next|
|RNA||Translates the information encoded in DNA for the manufacturing of proteins and help in their synthesis|
Concepts, terms, and facts check
Study Questions create your answer in a sentence kind (do no answer using loosened words)
1. What is a main point acid?2. What elements are nucleic acids made of?3. What are the monomers that make the building blocks of nucleic acids?4. What room the three components of a nucleotide?5. List the varieties of nucleic acids defined in the module6. What are the functions of nucleic acid noted in the module?
Nucleotides space the monomers that make up the nucleic mountain polymers. Adenosine triphosphate (ATP) is a nucleotide that has an important function by itself. ATP is a direct and rapid energy resource for many cellular activities. ATP consists of a solitary adenosine (the nitrogen-containing base adenine and the sugar ribose), attached to 3 phosphate ions.
Figure (PageIndex3) The 2 covalent bond on the right of the molecule (shown in red) are high energy bonds. Once an enzymatic reaction breaks them down, a big amount of energy is released. This energy is all set to be offered by a cell. ~ above the other hand, as soon as molecules (like the ones us incorporate in ours diet) are broken down by enzymes they relax energy. This energy can be temporarily organized on ATP molecule in the covalent bonds forjajalger2018.org between free phosphate groups and also adenosine diphosphate (ADP)
ATP is regularly referred to as the major energy money for the cell. ATP serves as an interjajalger2018.orgiary molecule in between chemical reaction that release energy, and also chemical reactions that need energy. That does so by temporarily “holding” the power released by an enzymatic reaction in the covalent binding that affix phosphates to ADP (the red people in the figure above). Then, the molecule the ATP can provide up that energy where the is needed.
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The chemical formula summarizing this process, is
Since the reaction can go in either direction (from ADP to ATP, or from ATP to ADP), this is an example of a reversible reaction, and it is stood for with an dual arrow pointing in both directions.