science 4thq

• • PROTEINS – these are complex biomolecules that

  contain amino acids linked through peptide bonds.
• AMINO ACIDS – are building blocks of protein.
• NUCLEIC ACIDS – are the building blocks of

  living organisms.
• DNA – Deoxyribonucleic acid is a nucleic acid that

  contains genetic instructions used in the

  development and functioning of all modern living

  organisms.
• RNA – Ribonucleic Acid are single stranded chain

  of alternating phosphate and ribose units with the

  bases adenine, guanine, Cytosine, and Uracil.
• LIPIDS – these are fats, oils, waxes, water-soluble

  vitamins, and sterols(like cholesterol)
• TRIGLYCERIDES – are triesters of fatty acids

  with glycerol. Solid triglycerides are classified as

  fats and liquid triglycerides are classified as oils.
• STEROIDS – Cholesterol is a steroid and one of

  the most plentiful lipids in our body. It is produced

  by the liver to meets the body’s needs.
• PHOSPHOLIPIDS – it is the major components

  of cell membranes. Its molecules is composed of 2

  fatty acids, a glycerol and phosphate group, and a

  polar molecule.