Nucleic

Question: Which statement is most accurate regarding similarities and differences between proteins and nucleic acids? A. Nucleic acids have directionality, proteins do not. B. Proteins are formed by hydrolysis reactions; nucleic acids are formed by condensation reactions. C. Proteins and nucleic acids both have a sugar-phosphate backbone and are formed by condensation reactions. D. Proteins and nucleic acids both have a backbone and are formed by condensation reactions.

Answer: D. Proteins and nucleic acids both have a backbone and are formed by condensation reactions.

Question: Why do the cells in your body never use nucleic acids as an energy source? Cells of your body never use their nucleic acids as an energy source. Why not?

Answer: Getting energy out of organic molecules requires a specific mechanism. That mechanism is cellular respiration, and because of its specific enzymes, their locations, and characteristics, it works most readily on carbohydrates. If the amount of carbs runs low, then fats will feed into the same reaction pathways, and ultimately, amino acids from proteins, as well. But the body would undoubtedly be dead by the time all those resources were consumed to the point when nucleic acids would be broken down. But theoretically, it could happen.

Question: What foods contain nucleic acids or repair nucleic acids ? Well im a nineth grader that needs a nucleic acid food that wont need to be hot while eating it like mashed potatoes.

Answer: Almost all foods contain nucleic acids. Apples, for example. Or eggs.

Question: how is ATP similar to the monomers that make up nucleic acid and RNA? How is ATP similar to the monomers that make up the nucleic acid RNA? Explain.

Answer: ATP is the monomer that makes up DNA and RNA. ATP is just used as an energy source also. good luck.

Question: Why did nature construct nucleic acids with four nucleotide bases? Could a genetic code be formulated if nucleic acids had just two bases? If there were only two nucleotide bases, what is the minimum number of bases in sequence required to constitute the genetic code? If it is possible to construct a genetic code with two bases, why did this not arise in nature – what are the constraints against having just two bases? What are the constraints against nature successfully constructing a nucleic acid hereditary molecule with six nucleotide bases?

Answer: the code must code for around 20 amino acids. it is read in sets of three in each codon. so with A G C and T you can have AGC AGT AGG AGA etc and this gives you enough variation. If you only had three different bases (eg A G and C) you would get AGA AGG AGC AAA GGG CCC ACA ACC ACG AAC AAG GGC GGA GAG GAC GAA GCG GCA GCC GAA Actually I just proved that with only three types of bases you could have codons for at least 20 amino acids ! I will leave you to investigate further ! And I taught this in biology !!

Question: What are the molecular components of the nucleic acids? What are the molecular components of the nucleic acids? also instant best answer if you can answer he following too, Explain why amino acids as a category of biological molecules is appropriately named. Thanks guys!

Answer: the component of the nucleic acids are of 3 types 1) a sugar ribose or deoxyribose 2) a base (adenine guanine, cytosine thymine or uracil° 3) a phosphate group Amino acids contain a basic group form NH2 or NH3+ if ionized AND an acid group form HCOO or COO- when ionized. The NH2 is called amine

Question: How can I remember what's in a protein, lipid, carbohydrate and nucleic acids? Such as a Lipid has carbon and hydrogen atoms. And a Protein has nitrogen, carbon hydrogen and oxygen! Carbs have carbon hydrogen and oxygen. Nucleic acids have hydrogen, oxygen, nitrogen, carbon and phosphorus. HOW CAN I REMEMBER WHICH HAS WHICH?!

Answer: Please don't listen to Inqueer Ree. Don't fooled by the 2 up votes: some of his statements are wrong. I don't know if mine will be easier, but at least it will be right! First, remember CHONP (carbon, hydrogen, oxygen, nitrogen, and phosphorus). Those are the 5 most important elements for biological molecules (see note B, though). Then it's just a matter of which class of organic molecules has which of those 5 elements. And it's easier than that. Since all four of the groups have C and H, it's actually just a matter of remembering which ones have O, N, and P. And, if you remember the four groups in the order I will list them, then each one simply adds the next element in CHONP! lipids: CH (see note A) carbohydrates: CHO proteins: CHON (see note B) nucleic acids: CHONP A: Lipids usually also have a little bit oxygen (O) or sometime even less of phosphorus (P) or nitrogen (N), but it looks like your teacher is not worried about that. B: A couple amino acids have sulfur (S) too, but it looks like your teacher is not worried about that just yet.

Question: Why are nucleic acids not considered a nutrient for the body like carbohydrates, lipids, and proteins are? Why are nucleic acids not considered a nutrient for the body like carbohydrates, lipids, and proteins are ?

Answer: Nucleic acids are made up of nucleotides. They only carry genetic information about you like DNA. Although, carbohydrates, lipids, and proteins are all chemical energy. Carbohydrates are commonly broken down into ATP, or Adenosine Triphosphate which is a source of energy in a cell that is stored in the mitochondrion of a eukaryotic cell. Fats store a lot of energy and Proteins are the building blocks of living things. They are less likely to break down ATP.

Question: I'm studying nucleic acids .What's the difference is between phosphate group and hydroxyl groups? I thought that nucelic acid were nucleic acids are made up of a sugar, base and phosphate so I am trying to figure out where this hydroxyl group comes in. Thanks so much!

Answer: The hydroxyl groups are part of the deoxyribose structure. Phosphate is PO4, hydroxyl is OH.

Question: The cell of your body absolutely does not use nucleic acids as alternative energy sources. Suggest why? The cell of your body absolutely does not use nucleic acids as alternative energy sources. Suggest why?

Answer: Nucleic acid is used to store imformation. The eukaryotic cell already has a nuclear envelope to protect its own DNA. If RNA is used for energy, there is no way to protect its own messenger RNA.

Question: What are the five elements present in the nucleic acid? What are the 2 kinds of nucleotides? What are the examples of organic base?

Answer: DNA and RNA are composed of carbon, hydrogen, oxygen, nitrogen, and phosphorous. An organic base has a carbon backbone

Question: How are proteins, carbohydrates, nucleic acids, and lipids important to plants? Raf, I need a little more detail than that please...

Answer: Proteins- they are needed by plants in order to maintain the balance in the semi-permeable membrane. Proteins are the one that maintain the ions and other substances that come in and out of cell. Also proteins are needed for structure of the plant, etc. Carbohydrates- Also present in the cell membrane and also acts as food storage. Nucleic acid- they are the building blocks of DNA Lipids- They are important also in the cell membrane of plants as they keep substances out or in the cell depending on concentration gradient.

Question: How does the structure of nucleic acids contribute to their function as genetic material? i know what a nucleic acid is, i know what it is made up of, but i dont know why this makes it work as genetic material. what about the sugars, nitrogenous bases, and a phosphate head make them useful for carrying genetic material?

Answer: The base pairs (A, C, G, T) act the same way as a programming language (like 0's and 1's). Or like an alphabet, with 3 "letter" words, called codons. Basically, depending on the order of base pairs in a sequence you get different amino acids. For example ACG and TTC would give you different amino acids. Then based on the properties of the different amino acids and how they interact with each other and the environment (some are polar, some are hydrophobic, etc.) you get the different shapes and functions of proteins. There are 20 different amino acids. I'm not sure if that is what you were asking, or if you were asking for a more complicated biochemical answer?

Question: Can you give me 5 diseases associated with nucleic acids? Can you give me 5 diseases associated with nucleic acids?

Answer: The same 5 I gave you about proteins - due to gene mutations.

Question: What is the difference between nucleic acid and nucleotide? Provide examples please, it helps

Answer: neuclotided (C,G,T,A,U) are the monomer nucleic acid is the polymner (DNA or RNA)

Question: What is the function of the nucleic membrane? I can't find it anywhere in my science book so what is the function for it in a eukaryotic cell?

Answer: I think this website may help u http://library.thinkquest.org/12413/structures.html

Question: What are the two nucleic acids found inside the cell? I have a test tomorrow and our teacher gave us a study guide and this is the only thing I'm having problems with. I don't remember learning about the nucleic acids, so, what are the two nucleic acids found inside the cell? Oh yeah... I remember learning about RNA and DNA.. thanks. *feels stupid*

Answer: DNA and RNA

Question: What are nucleic acids made up of and what are their monomers? OMG!! i have a test this friday and need to know the following question...What are nucleic acids made up of and what are their monomers? PLEASE help me!!!

Answer: nucleic acids are made up of a) pentose sugar b) nitrogenous base c) phosphate group (a) DNA has deoxyribose in RNA has ribose (b) DNA has A, T, C, G. adenine, thymine, cytosine, guanine .....RNA has A, *U*, C, G. adenine, *uracil*, cytosine, guanine (c) just a phosphate group... Hope u pass ur test (:

Question: What are the monomers of nucleic acids and what are the 3 parts of a phospholipid? thanx so much 4 ur help!

Answer: Nucleotides are the monomers of nucleic acid. They contain either a purine or a pyrimidine base attached to either a ribose or a deoxyribose. Then they form chains for RNA and DNA

Question: Give a concise account for the structures and functions of nucleic acids.? This is a question on biochemistry and is equivalent to five points.This question is related to Cambridge A-level Chemistry .

Answer: 1- A nucleic acid is a macromolecule composed of nucleotide chains. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living things, as they are found in all cells. They are also found in viruses. Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally-occurring DNA or RNA by changes to the backbone of the molecule.Each nucleotide consists of three components: a nitrogenous heterocyclic base, which is either a purine or a pyrimidine; a pentose sugar; and a phosphate group. Nucleic acid types differ in the structure of the sugar in their nucleotides - DNA contains 2-deoxyriboses while RNA contains ribose. Also, the nitrogenous bases found in the two nucleic acid types are different: adenine, cytosine, and guanine are in both RNA and DNA, while thymine only occurs in DNA and uracil only occurs in RNA. Other rare nucleic acid bases can occur, for example inosine in strands of mature transfer RNA. Nucleic acids are usually either single-stranded or double-stranded, though structures with three or more strands can form. A double-stranded nucleic acid consists of two single-stranded nucleic acids held together by hydrogen bonds, such as in the DNA double helix. In contrast, RNA is usually single-stranded, but any given strand may fold back upon itself to form double-helical regions. Within cells, DNA is usually double-stranded, though most viruses have single-stranded DNA as their genome. Retroviruses have single-stranded RNA as their genome. The sugars and phosphates in nucleic acids are connected to each other in an alternating chain, linked by shared oxygens, forming a phosphodiester functional group. In conventional nomenclature, the carbons to which the phosphate groups attach are the 3' end and the 5' end carbons of the sugar. The bases extend from a glycosidic linkage to the 1"carbon of the pentose sugar ring. 2- Nucleic acids allow organisms to transfer genetic information from one generation to the next. There are two types of nucleic acids: deoxyribonucleic acid better known as DNA and ribonucleic acid, better known as RNA. When a cell divides, its DNA is copied and passed from one cell generation to the next generation. As we have explored before, DNA contains the "programmatic instructions" for cellular activities. When organisms produce offspring, these instructions, in the form of DNA, are passed down. RNA is involved in the synthesis of proteins. "Information" is typically passed from DNA to RNA to the resulting proteins. Nucleotides Nucleic acids are composed of nucleotide monomers. Double stranded DNA( see link of pic : http://z.about.com/d/biology/1/0/4/4/dnastruct.gif) Image credit: DOE Human Genome Program Nucleotides have three parts: * A Nitrogenous Base (purine or pyrimidine) * A Five-Carbon Sugar * A Phosphate Group