Name:

Simplified Biochemistry Test Retake

Chem basics

  1. The second electron shell of an atom can hold a maximum of ____ electron(s).
  2. The tendency of water molecules to stick together is referred to as _____________.
  3. The hydrogens and oxygen of a water molecule are held together by _____________ bonds.
  4. Water's surface tension and heat storage capacity are accounted for by its ____________.
  5. An atom with an electrical charge is a(n) __________.
  6. All atoms of an element have the same number of _________.
  7. The bond between oppositely charged ions is a(n) __________ bond.
  8. The higher the pH of a solution, the more / less acidic the solution.
  9. What name is given to bonds that involve the sharing of e-? ______________
  10. Draw a Lewis diagram for Aluminum.
     
     

Organic Basics

  1. Why does carbon rarely form ionic compounds?
     
  2. When a single carbon atom bonds other atoms, what determines the shape of the molecule?
     
  3. Carbon can form molecules shaped like _____________________,
     
    __________________________ and _________________________.

Carbohydrates

  1. What is the name of the covalent-bonding process by which monosaccharides become polysaccharides?
     
  2. A pentose sugar has ______ carbons.
  3. How can three sugars (glucose, fructose, galactose) with the same chemical formula (C6H12O6) behave so very differently in chemical reactions and in cells?
     


  4. An example of a plant storage polysaccharide is __________________________
  5. An example of a plant structural polysaccharide is ______________________
  6. An example of a animal storage polysaccharide is ________________________
  7. An example of a animal structural polysaccharide is _______________________
  8. Why might cooking a potato make the polysaccharides it contains easier to digest?
     


Lipids

  1. What is the name of the covalent-bonding process by which fat is formed?
     
  2. Four linked carbon rings form a lipid group called _________________.
  3. An example of a saturated fat is __________.
  4. An example of an unsaturated fat is __________.
  5. An example of a steroid is __________.
  6. A fatty acid with one or more double bonds means that it is not ___________ with hydrogen atoms.
  7. At room temperature a saturated fat is most likely ________ (solid or liquid).

Proteins

  1. What is the name of the covalent-bonding process by which proteins are formed?
     
  2. How many common amino acids are there?___________________
  3. Glucose is to starch as amino acids are to _______________.
  4. The sequence of a protein's amino acids determines its _____________.
  5. How a protein functions is determined by its ______________________.
  6. An example of a storage protein is ____________________.
  7. An example of an structural protein is _____________________.
  8. An example of a protein involved with movement is _____________________.