How many lab practicals will be dropped from your final grade?

What linkages occur in glycogen at branch points between glucose units? A) Alpha-1,4 B) Alpha-1,6 C) Beta-1,3 D) Beta-1,6

Which of the following statements describes integral membrane proteins? A) They do not completely span the lipid bilayer. B) They are easily removed by changes in pH or high C) The amino acids that are embedded in the membrane are D) They tend to be water-soluble

Which of the following statements regarding the reducing ability of a sugar is wrong? A) The aldehyde group of a saccharide is responsible for its reducing properties. B) Ketoses are not reducing sugars because they are not aldehydes. C) D-Glucose in predominantly in a cyclic hemiacetal form but it is a reducing sugar through the acyclic form with which the hemiacetal is in equilibrium. D) A methyl glucoside is not a reducing sugar.

The O-linked glycoproteins of eukaryotes usually have their sugar chains attached to A) carbonyls in the protein backbone B) the OH of Ser or Thr residues C) the carboxyl terminal residue D) the carboxyl groups of Asp or Glu

Which carbon becomes the anomeric carbon of glucose in its pyranose form?

Micelles of fatty acids in water are organized such that the ___ face the solvent and the ___ are directed toward the interior A) hydrophilic heads; hydrophobic tails B) hydrophobic tails; hydrophilic heads C) hydrocarbon chains; carboxylic acid groups D) hydrophilic heads; hydrophilic tails

Which one of the following is the simplest form of monosaccharides? A) Carboxyl groups B) Aldehyde or Ketone groups C) Alcohol or Carboxyl groups D) Alcohol and carboxylate

Which one of the following is true of diffusion and osmosis? A) Diffusion and osmosis rely on the concentration gradient of all compounds in the cells B) Diffusion and osmosis will proceed in the same direction if there is only one solute C) Diffusion and osmosis rely on the concentration gradient of only the compound of interest. D) Diffusion and osmosis cannot occur simultaneously.

What kind of molecule is represented by the following structure:   CH3CH2CH2CH2CH2CH2CH2CH2CH2CH2CH2CH2CH2COOH A) An unsaturated fatty acid B) A saturated fatty acid C) A disaccharide D) A carboxylic ester fatty acid