Science Homework Help

Elements of Life

Concepts

 What are the elements of life?

 What are the relative

abundancies of these elements?

Macromolecules

Vocabulary

 Monomer

 Polymer

 Carbohydrate

o Monosaccharide

 Glucose

 Fructose

 Galactose

o Disaccharide

o Polysaccharide

 Lipid

o Nonpolar

o Glycerol

o Fatty acid

o Steroid

o Cholesterol

o Phospholipid

 Protein

o Amino acid

 R-Group

o Peptide

o Polypeptide

 Nucleic acid

o Nucleotide

 Nitrogenous base

 Phosphate group

 5-carbon sugar

o DNA

o RNA

 Dehydration synthesis

 Hydrolysis

Concepts

 What are the monomers and polymers of all macromolecules?

 What are the general shapes of all macromolecules?

 Which macromolecules are polar and nonpolar?

 What are the roles of each macromolecule?

 Which elements are found in which macromolecules?

 What are common examples of each macromolecule?