Chapter Twenty-Four

The Chemistry of Life

24.1 A Strategy for Life

Identify the two major cell types that occur in nature

Describe the chemical changes that occur during photosynthesis

24.2 Carbohydrates

Identify where glucose is found in nature

Describe how two simple sugars can be linked

24.3 Amino Acids and Their Polymers

Diagram the structure of an amino acid

Describe how peptide bonds form and identify what determines the properties of peptides and proteins

Describe how enzymes affect biochemical reactions

24.4 Lipids

Identify the physical property that distinguishes lipids from other biological molecules

Describe the structure of a lipid bilayer

24.5 Nucleic Acids

Identify the functions of DNA and RNA

Describe how information is sorted in genetic material and how genes can mutate

Describe how DNA fingerprinting and recombinant DNA technology are used

24.6 Metabolism

Describe the function of ATP in cells

Distinguish between catabolism and anabolism

Describe the nitrogen cycle