Download ch 2 review - Middletown High School

Anatomy & Physiology
Ch2 Chemical Basis for Life
Review Sheet
Name:
Date:
Period:
2.1 Introduction
1. What is chemistry?
2. Why are we studying chemistry?
2.2 Structure of Matter
3. What is matter?
Elements and atoms
4. How are matter, atoms, and elements all related?
5. What atoms comprise 95% of the human body?
Atomic Structure
6. What is the atomic number? How can you find the atomic number?
7. How are atomic mass and atomic number different?
8. How can you find the number of electrons, protons, and neutrons in an atom?
9. What are the characteristics and locations of electrons, protons, and neutrons in
an atom?
10. Why are atoms neutral before bonding?
Bonding of Atoms
11. What is the difference between an ion and an isotope?
12. Why do atoms bond?
13. How many electrons are in the first, second, and third shells of atom?
14. What is the difference between ionic and covalent bonding?
15. What determines whether an atom is active or inert?
16. How do atoms gain a negative charge? A positive charge?
Formulas
17. How are molecular and structural formulas different? Give an example of both.
Chemical Reactions
18. Use symbols to show a synthesis reaction, decomposition reaction, and exchange
reaction. Describe each reaction.
19. What are reversible reactions?
Acids and Bases
20. Why are acids and bases considered electrolytes.
21. List all the ways acids and bases are different and similar. (A Venn diagram
would be helpful.)
22. What is the pH scale and how is it arranged?
2.3 Chemical Constituents of Cells
23. What is the difference between organic and inorganic substances?
24. Describe each inorganic substance and its importance to the human body.
25. List each organic substance and explain its functions?
26. What are the building blocks of each organic substance?
27. How are phospholipids and fats different?
28. How are protein structures determined?
29. When the structure of a protein comes apart or is changed, what is it called?
30. What is an enzyme?