Table of Contents
Which molecules are nucleic acids?
The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses.
What is the nucleolus made of?
The nucleolus is the site of transcription and processing of rRNA and of assembly of preribosomal subunits. Thus it consists of ribosomal DNA, RNA, and ribosomal proteins, including RNA polymerases, imported from the cytosol.
Is the nucleus made of nucleic acids?
The nucleus is known to contain two types of nucleic acid, deoxyribonucleic acid, and ribonucleic acid. It contains basic proteins and other proteins that include enzymes, phospholipids, various phosphate compounds, and a number of inorganic compounds.
What organic compound is nucleotides?
Nucleotides are organic molecules consisting of a nucleoside and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are essential biomolecules within all life-forms on Earth.
Why are nucleic acids organic molecules?
Nucleic acids, which are composed of nucleotides, are very large and complex organic molecules that contain the genetic code for that organism. Two closely related types are needed to transmit the genetic information from parent to offspring: DNA and RNA. Not surprisingly, they also share structural similarities.
Is nucleolus a cell organelle?
Is nucleolus an organelle? The nucleolus is an organelle, and a very unusual one because it is devoid of lipid bilayers, which are characteristic of other organelles.
Is nucleolus found in prokaryotic or eukaryotic cells?
Nucleolus: Found inside of the nucleus, the nucleolus is the part of eukaryotic cells where ribosomal RNA is produced.
What are the building blocks of all nucleic acids?
Nucleotide building blocks of all nucleic acids; consists of a 5-carbon pentose sugar, a phosphate group and a nitrogenous base purine nitrogenous bases, adenine and guanine. these are double ringed bonds paired by hydrogen bonds pyrimidine
What’s the difference between a protein and a nucleic acid?
Our definition of a nucleic acid is very similar to the definition we gave for proteins. While proteins are coiled up chains of amino acids, nucleic acids are coiled up chains of nucleotides. The sequence of nucleotides determines the RNA which determines DNA which determines protein structure.
Where are the nucleotides found in a cell?
DNA (deoxyribonucleic acid) is found primarily in the nucleus of cells. Both RNA and DNA are large polymers containing repeating structural units, or monomers, called nucleotides. 12.1 Components of Nucleic Acids nucleotide is composed of three units: an organic base, a sugar, and a phosphate.
What are the 5 nitrogenous bases of a nucleotide?
A nucleotide consists of a base, sugar and phosphate group. The nitrogenous base is attached to a 5-carbon-sugar (ribose or deoxyribose) and attached to the sugar is a phosphate group (PO4). The five nitrogenous bases are: Adenine, Guanine, Cytosine, Thymine and Uracil.