Biological polymers
Biological polymerA large molecule formed from many identical smaller molecules known as monomers. are made naturally by organismLiving entity, eg animals, plants or microorganisms.. They are essential to life.
DNA
Genes are made of DNADeoxyribonucleic acid. The material inside the nucleus of cells, carrying the genetic information of a living being.. DNA is a polymer made from four different monomerSmall molecule, usually containing a C=C bond, that can join end to end with other monomers to form a polymer molecule., called nucleotideThe units or molecules of which DNA is composed.. These join together in different combinations to make long strands. In a DNA moleculeA collection of two or more atoms held together by chemical bonds., two strands wrap around each other to form a double helixThe shape of the DNA molecule, with two strands twisted together in a spiral. structure.
Carbohydrates
carbohydrateFood belonging to the food group consisting of sugars, starch and cellulose. Carbohydrates are vital for energy in humans and are stored as fat if eaten in excess. In plants, carbohydrates are important for photosynthesis. polymers are made from sugar monomers. Plants turn the glucose (a type of sugar) produced during photosynthesisA chemical process used by plants to make glucose and oxygen from carbon dioxide and water, using light energy. Oxygen is produced as a by-product of photosynthesis. Algae subsumed within plants and some bacteria are also photosynthetic. into carbohydrate polymers.
starchA type of carbohydrate. Plants can turn the glucose produced in photosynthesis into starch for storage, and turn it back into glucose when it is needed for respiration. and celluloseA carbohydrate. It forms the cell wall in plant cells. are types of carbohydrates. They contain many glucoseA simple sugar used by cells for respiration. molecules, joined together in long chains with branches.
Proteins
proteinOrganic compound made up of amino acid molecules. One of the three main food groups, proteins are needed by the body for cell growth and repair. are polymers made from different monomers, called amino acidThe building blocks that make up a protein molecule.. These join together in different combinations to make long strands, which then fold into complex shapes. Muscles and skin are built from proteins. enzymeA protein which catalyses or speeds up a chemical reaction. are also built from proteins.
Question
Name the monomers found in DNA, starch and proteins.
Nucleotides are the monomers for DNA, glucose is the monomer for starch and amino acids are the monomers for proteins.