What Do Uranium  Need To Know ?

 Chapter 7 The Chemistry of Life  Pages 158-187

Vocabulary

Know the general meaning of the words from the chapter.

Section 7.1 Elements and Atoms

Know the elements & symbols on page 161.

Know how to find  the number of protons, neutrons, and electrons.

Know what varies in an isotope.

Vocab: proton, neutron, electron, metals, nonmetals, metalloids, 

 atomic #, atomic mass, isotope, family names, periods, 

 valence electrons - gained or lost, bonding - ionic, covalent

Section 7.2 Interactions of Matter

Know the differences between covalent and ionic bonds.

Know why water is important chemically.

Know how to read the pH scale.

What are acids or bases? Give examples.

Section 7.3 Life Substances

Carbon

This element is found in all living things

Can form molecules of varied size or length

Isomer (p 176) molecules with the same formula but different shape

Polymer (p 177) a long chain of molecules

Section 7.3 Life Substances

Carbohydrates

Made up of: monosaccharides and disaccharides

Function: store and release energy support (plants)

Examples: starch sugar cellulose

Section 7.3 Life Substances

Lipids

Made up of: glycerol and 3 fatty acids

Function: long-term energy storage insulation protective coatings

Examples: fats ,  oils

Section 7.3 Life Substances

Proteins

Made up of: amino acids

Function: building blocks of many structural components and many other functions

Examples: various enzymes horns, hair, nails, etc..

Section 7.3 Life Substances

Nucleic Acid

Made up of: nucleotides

Function: carry genetic information

Examples: DNA , RNA