241 results found

Search Results for: amino acid

Amino acid

Definition noun, plural: amino acids (1) A molecule consisting of the basic amino group (NH2), the acidic carboxylic group... Read More

Polypeptide

Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More

Codon

What does codon mean? A codon, in biology, is the basic genetic unit of life that acts as the template for the amino acid... Read More

Frameshift mutation

Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More

Pyruvate

Pyruvate Definition Pyruvates have been often recognized as one of the most important molecules that are frequently... Read More

Dibasic amino acid

Dibasic amino acid --> basic amino acid An amino acid containing a second basic group (usually an amino group); e.g.,... Read More

Genetic Mutations

Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More

Catabolism

Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More

Protein

Protein Definition Proteins are biomolecules comprised of amino acid residues joined together by peptide bonds.... Read More

Translation

In biology, translation is a step in protein biosynthesis where a genetic code from a strand of mRNA is decoded to produce a... Read More

Chemical Composition of the Body

In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More

Ribonucleic acid

Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Transfer ribonucleic acid

Definition noun plural: transfer ribonucleic acids trans•fer ri•bo•nu•cle•ic ac•id, ˈtɹænsfɝ... Read More

Protein synthesis

Protein synthesis is the process of creating protein molecules. In biological systems, it involves amino acid synthesis,... Read More

Metabolism

Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... Read More

Phosphorylation

Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More

Alpha-amino acids

Alpha-amino acid Typically, an amino acid of the general formula R-CHNH2-COOH (i.e., the NH2 in the a position); the l forms... Read More

Amino acid sequence

Amino acid sequence The sequence of amino acids as arrayed in chains, sheets, etc., within the protein molecule. this is... Read More

Protein Activity and Cellular Metabolism

Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More

Micromolecule

Micromolecules Definition How to define micromolecule? Micromolecules are relatively small molecules that are combined... Read More

Peptide bond

Definition noun, plural: peptide bonds (1) The covalent bond joining amino acids, particularly at the carboxyl group of... Read More

Nucleic acid

Definition noun plural: nucleic acid nu·cle·ic ac·id, nuˈkleɪ.ɪk ˈæsɪd Any of the group of complex compounds... Read More

Oligopeptide

Definition noun, plural: oligopeptides A peptide comprised of relatively small number of amino acid residues (i.e. about two... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

Degenerate

Degenerate means to become worse or less of its kind or former state. In biology, it means an entity performs the same... Read More

Biomolecule

Definition noun plural: biomolecules bi·o·mol·e·cule, ˈbaɪoʊ ˈmɑləkjul Any of the molecules produced by living... Read More

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Nucleotide

Reviewed by: Todd Smith, PhD Nucleotide Definition A nucleotide is regarded as the basic building block of... Read More

Lipid

Definition noun plural: lipids lip·id, ˈlɪp ɪd, ˈlaɪ pɪd A fatty or waxy organic compound that is readily soluble... Read More

Nonapeptide

Definition noun, plural: nonapeptides An oligopeptide comprised of nine amino acid residues Supplement Peptides are monomers... Read More

Anabolism

Anabolism Definition Metabolic processes involve the conversion of one molecule into another through a sequence of chemical... Read More

Dipeptide

Definition noun, plural: dipeptides An organic compound formed when two amino acids are joined by a peptide... Read More

Nitrogen

Definition noun plural: nitrogens ni·tro·gen, ˈnɐɪtʰɹədʒən (biochemistry) A colorless, odorless, gaseous... Read More

Role of Golgi Apparatus & Endoplasmic Reticulum in Protein Synthesis

Continued from the previous tutorial that introduces protein synthesis... mRNA and tRNA mRNA leaves the nucleus and enters... Read More

Dansyl chloride

Definition noun (chemistry) A strongly fluorescent compound that will react with the terminal amino group of a protein;... Read More

Aspartate

Aspartate (Science: amino acid) a nonessential amino acid that plays a critical part of the enzyme in the liver that... Read More

Guanine

Definition noun plural: guanines gua·nine, ˈɡwɑː.niːn (biochemistry) A purine nucleobase that complementary pairs... Read More

Ribosomal ribonucleic acid

Definition noun plural: ribosomal ribonucleic acids ri•bo•so•mal ri•bo•nu•cle•ic ac•id, ˈraɪ... Read More