What subunits is starch made of?
Starch is a large polymer of glucose subunits and is the storage form of glucose in plants. Sources include seeds, grains, corn, beans, potatoes, and rice. There are actually two types of starch: amylose and amylopectin. Amylose is a long, unbranched, chain of glucose subunits.
What is made from nucleotide subunits?
A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, the base uracil (U) takes the place of thymine.
What makes up a nucleotide?
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).
What polymer is starch?
glucose
Starch is a polysaccharide comprising glucose monomers joined in α 1,4 linkages. The simplest form of starch is the linear polymer amylose; amylopectin is the branched form.
What subunits make up proteins?
Proteins are made of subunits called amino acids and are used to build cells and do much of the work inside organisms. They also act as enzymes helping to control metabolic reactions in organisms. Amino acids contain two functional groups, the carboxyl group (-COOH) and the amino group (-NH2).
Where are nucleotides made?
the liver
Nucleotides are obtained in the diet and are also synthesized from common nutrients by the liver. Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.
What are the three chemical molecules that make up the subunits of DNA?
Nucleotides are the subunits of DNA. The four nucleotides are adenine, cytosine, guanine and thymine. Each of the four bases has three components, a phosphate group, a deoxyribose sugar and a nitrogen-containing base.
Is starch a monomer or polymer?
Starch is a polysaccharide comprising glucose monomers joined in α 1,4 linkages. The simplest form of starch is the linear polymer amylose; amylopectin is the branched form.