Biomolecules — Important Questions

Glucose, Fructose, Galactose

Monosaccharides are simple sugars that cannot be hydrolyzed further. Glucose, fructose, and galactose are all hexose monosaccharides. Sucrose and maltose are disaccharides.

True

Starch is indeed the storage polysaccharide in plants, stored mainly in seeds, tubers, and roots. It consists of amylose and amylopectin.

Energy storage, Insulation, Cell membrane component

Lipids serve as energy storage (fats), provide insulation against heat loss, and form cell membranes (phospholipids). Enzymes are proteins and genetic information is stored in nucleic acids.

Primary structure

Primary structure is the amino acid sequence, secondary involves hydrogen bonding (α-helix, β-sheets), tertiary is 3D folding, and quaternary involves multiple polypeptide chains.