Download Chapter 2 Study Guide

Chapter 2 Study Guide
Understand the following terms/concepts. These will be used for multiple choice and
completion.
Mass number: what does it consist of?
Atomic number: what does it consist of?
What makes up a molecule of water?
Covalent bond
What does polar mean? (water is polar why?)
Solution
Suspension
Mixture
pH scale; what is acid, base, neutral (know the #s)
Acids are made of more H+ or OH- ions?
Bases are made of more OH- ions or H+ ions?
What is special about Carbon?
Covalent bonds and valence electrons; (use Carbon as an example, or the 6 electrons, 4
are valence, how many covalent bonds can Carbon form?)
What happens to atoms in a chemical reaction? Are they created, destroyed, rearranged,
or neutralized?
Reactants/Products
What does the graph look like when energy is absorbed? Or released?
Enzymes
Which of the three subatomic particles is most involved in forming chemical bonds?
Proton, neutron, or electron
Why is water a polar molecule? Uneven distribution of what?
Short Answer:
What accounts for water’s properties of adhesion and cohesion?
What is a mixture?
Science Skills:
Use the diagram below to answer the following questions on the lines provided.
Effect of Temperature on Two Enzymes
That Function at Different Temperatures
in Two Different Organisms
Figure 2–1
. Apply Concepts According to Figure 2–1, which enzyme would you expect to find in a
bacterium growing in a hot spring?
. Interpret Graphs According to Figure 2–1, at what temperature do the two enzymes have
the same amount of activity?
. Interpret Graphs According to Figure 2–1, what are the optimum temperatures for each
enzyme?
. Apply Concepts Based on Figure 2–1, which enzyme would have the most activity in
humans?
. Interpret Graphs Based on Figure 2–1, which enzyme is active over the largest
temperature range?
Extra credit:
Water filter in survival mode short essay;
How would you filter water collected in survival mode? Like water collected from the
transpiration process in leaves that we conducted. (this must turned in on a separate word
document) 5 points
On test essay:
When working in the laboratory, you discover that the solutions you are working with are
tomato juice with a pH of 4 and soap with a pH of 10. By comparing the pH of these
substances with that of pure water, would you find that each of these substances is acidic or
basic? Explain.