BIOCHEM QUESTIONS
Worth 100pts
1.)
What is the difference between Organic and Inorganic Compounds? Is there an
exception to this rule? If so what is it?
Organic- Contain Carbon (2pts)
Inorganic- Does NOT contain Carbon (2pts)
Exception to the rule is CO2 or Carbon Dioxide (2pts)
2.)
What is the difference in a monomer, polymer, and macromolecule?
Monomer- one single unit or simple carbon (2pts)
Polymer- a chain of monomers (2pts)
Macromolecule – a large polymer (2pts)
3.)
What process will help link together monomers to from a polymer?
4.)
What process will break apart a polymer?
Dehydration Synthesis (2pts)
Hydrolysis (2pts)
5.) What is the most common energy-storing molecule? What is it made of?
ATP’s (2pts) (1) Sugar (2pts) (2) Adeosine (2pts) (3) 3 Phosphates (2pts)
6.)
What are the four main classes of organic compounds that we are studying?




Carbohydrate (2pts each..total of 8pts)
Lipid
Protein
Nucleic Acids
7.)
How can I identify/recognize a carbohydrate?
8.)
Give me an example of a chemical formula that is a carbohydrate
9.)
List 3 examples of carbohydrates
o Sugar (2pts)
o Starch (2pts)
o Cellulose (2pts)
H:O ; 2:1 (2pts)
C6H12O6…just look at the number of H:O…make sure its 2:1 (2pts)
10.) What is the overall general function of a carbohydrate?
They give us ENERGY!! (2pts)
11.) What are the
o
o
o
three types of Sugars and list an example of each.
Monosaccharide (1pt)
Disaccharide (1pt)
Polysaccharide (1pt)
Glucose or Fructose (1pt)
Sucrose (1pt)
Cellulose (1pt)
12.) Give two ways to identify a lipid, by structure and/or formula.
Lipids are usually large, Lots of C-H’s compared to few O’s. (2pts)
13.) List three functions of a Lipid
o Long Term Energy Storage (2pts)
o Insulation (2pts)
o Protection (2pts)
14.) What happens to a lipid in water?
It will not dissolve…it is insoluble (2pts)
15.) What are two key differences between saturated and unsaturated fats?
o Saturated…solid at room temperature and contains NO double
o
16.) What are the
o
o
o
bonds (2pts)
Unsaturated….liquid at room temperature and contains double
bonds (2pts)
three classes of lipids?
Triglycerides (2pts)
Phospholipids (2pts)
Waxes (2pts)
17.) How can I identify/recognize a protein? Give all possibilities…Total of 7pts
COOH; Carboxyl and NH2 Amino Group (4pts)…1 pt each
OR
C=O and N-H Peptide Bond (3pts)
18.) List 4 functions of a protein
o
o
o
o
Transport (2pts)
Defense (2pts)
Movement (2pts)
Biochemical Control(2pts)
Structure, Storage
19.) What are proteins made of?
Amino Acids…or C,H, O, and N (2pts)
20.) What are the two types of Nucleic Acids?
o
DNA (2pts)
o
RNA (2pts)
21.) What are their functions?
Hold instructions for cell activities and for making proteins (2pts)
22.) What are Nucleic Acids made of? (Don’t list the elements)
Nucleotides (2pts)
23.) What three things make up a nucleotide?
o
o
o
Sugar (2pts)
Phosphate (2pts)
Nitrogen Base (2pts)