Macromolecules Flashcards
What are the four classifications of macromolecules?
- carbohydrates
- proteins
- lipids
- nucleic acids
What are the subunits of carbohydrates?
monosaccharides or simple sugars
What is formed when two monosaccharides are bonded together?
A disaccharide.
What is a chain of simple sugars known as?
A polysaccharide.
What elements make up carbohydrates?
Carbon, hydrogen and oxygen.
What are the subunits of protein?
Amino acids
What are the functional groups of an amino acid?
the carboxyl group and the amino group
What type of bond is formed between amino acids?
A peptide bond.
What molecule is formed when amino acids bond together?
Water
How are carbohydrates used by living things?
They supply living things with energy and give structural support.
How are protein used by living things.
Protein are used to build cell structures and act as enzymes.
What molecules is formed when a chain of amino acids are bonded together?
A polypeptide
What elements are found in a fatty acid chain?
Carbon, hydrogen and oxygen
How does a saturated fatty acid differ from an unsaturated fatty acid?
A saturated fatty aids has only single bonds between carbon atoms and an unsaturated fatty acid has at least one double bond between carbon atoms.
Saturated fatty acids have more hydrogen atoms.
What type of lipids are found in the membrane of cells?
phospholipids