Biomolecules Online Test

Lipids are a class of macromolecules that include fats, oils, and waxes. They are characterized by their hydrophobic nature.

Lipids are primarily used by organisms for long-term energy storage and thermal insulation. Carbohydrates are used for short-term energy, while proteins and nucleic acids have different primary roles.

Proteins function as structural components, enzymes, and antibodies to fight disease. Transmitting genetic information is the primary role of nucleic acids, not proteins.

A polysaccharide is a long chain of monosaccharides linked together. Disaccharides consist of only two units.

Carbohydrates are polymers made of repeating units called monosaccharides, such as glucose. Amino acids form proteins, and nucleotides form nucleic acids.

Meat, dairy, fish, and legumes are primary dietary sources of protein. These foods are rich in the amino acids necessary for building body tissues.

Nucleic acids like RNA and DNA are polymers composed of monomer units called nucleotides. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base.

Most lipids, specifically triglycerides, are formed from one glycerol molecule and three fatty acid chains. The other options list sugars or incorrect combinations.

DNA and RNA are the two primary types of nucleic acids. They are polymers made of nucleotide monomers.

DNA (deoxyribonucleic acid) is the universal genetic material for all known living organisms. It encodes the instructions for life.

Carbohydrates, specifically glucose, are the primary and most readily available source of energy for cellular processes. While lipids store more energy per gram, carbohydrates are the main fuel source.

Proteins are polymers composed of amino acid monomers linked by peptide bonds. The sequence of these amino acids determines the protein's function.