Unit 2 Chemistry Review Sheet

Unit 2 Chemistry Review Sheet

Learning Target: Identify subatomic particles of an atom and how they are arranged

1. What three particles make up an atom?
2. What are the charges on each?
3. Where can each be found in the atom?
4. How many electrons make up a stable arrangement?

Learning Target: Describe the difference between ions and atoms

1. How are an atom and its ion similar? How are they different?
2. How does an atom get a positive charge? A negative charge?
3. What is a positive ion called? What is a negative ion called?

Learning Target: Compare the types of bonding.

1. What happens to electrons in a covalent bond?
2. What happens to electrons in an ionic bond?
3. What is meant when a molecule is said to be polar?
4. Polar molecules can have what type of bonds BETWEEN molecules.

Learning Target: PH scale, how it is set up, what the numbers represent

1. Explain the difference between the solute and the solvent in a solution
2. What ions do acids form in water? Bases?
3. What ion does the pH scale measure?
4. Where are acids found on the scale? Bases?
5. Describe what happens to an enzyme if it the solution pH changes.

Learning Target: Describe the functions of enzymes, & how substrate specificity works?

1. What is a biological catalyst?
2. What is the energy needed to start a reaction called?
3. How do enzymes speed up reactions?
4. Describe what is meant by a lock & key fit
5. What does denatured mean? How does this affect an enzymes ability to function?

Learning Target: Explain the unique properties of water.

1. Water is both adhesive and cohesive describe what is meant by these terms.
2. Define capillary action? What organisms take advantage of this property?
3. Explain what a heat sink is and describe what bonds must be broken to heat them.

Learning Target: Show how chemical reactions can be shown by chemical formulas.

1. Be able to identify reactants and products in a chemical reaction
2. Distinguish between hydrolysis and a condensation reaction.

Learning target: Explain the difference between organic and inorganic compounds

1. What element is responsible for making organic compounds
2. How many bonds can this element form?
3. Why is it able to form this many bonds?

Learning Target: Describe general structure and function of organic molecules

1. List the 4 major groups of organic molecules.
2. What elements make up each group?
3. What are the monomers of carbohydrates? Proteins? Nucleic acids?
4. Give an example of a polymer from each of the four groups.
5. Which of the four groups is used as a primary energy source?
6. To which group do enzymes belong?
7. Distinguish between the three groups of lipids. How are the different from each other?
8. Which one makes up cell membranes.
9. Distinguish between a saturated fat and an unsaturated fat
10. What 3 parts make a nucleotide?

Learning Target:Cells store energy temporarily as ATP.

1. Distinguish between ATP and ADP.
2. How does a cell get energy from the ATP?