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Mizzou Bio 1500 Final Exam (Schulz) With Complete Solutions 100% Correct
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Mizzou Bio 1500 Final Exam (Schulz) With CompleteSolutions 100% Correct
What are the major functions of a protein? ANSWER Structural molecule to help define
cell shape, transporting molecules within cells, acting as an enzyme to speed up
chemical reactions, and acting as a signal between cells
What are major functions of a carbohydrate? ANSWER Energy storage molecule, acting
as signal between cells, acting as a structural molecule to help define cell shape, acting
as a component of a cell membrane
What are the major functions of lipids? ANSWER Acting as signals between cells, acting
as an energy storage molecule, excludes large or highly charged molecules from
entering or exiting cells, component of cell membrane phospholipid bi-layer
What is the major function of a nucleic acid? ANSWER Information storage molecule
Which of the following is NOT a polymer made up of individual monomers?
A) Carbs
B) Proteins
C) Fatty Acids
D) Nucleic Acids - ANSWER C
Which of the following statements is correct?
A) Almost all organisms have a phospholipid bilayer that is a major constituent of their
cellular membrane
B) Almost all organisms have the same 4 nucleotides for encoding genetic information
C) Almost all organisms use the same 20 amino acids to synthesize proteins
, D) Almost all organisms use carbohydrates as a source of energy
E) All of the above - ANSWER E
Peptide Bond - ANSWER forms between the carboxyl group of one amino acid and the
amino group of another amino acid
What type of interaction stabilizes the a-helix and the B-pleated sheet of proteins? -
ANSWER Hydrogen bonds
What type of interaction is directly responsible for the formation of secondary
structure? - ANSWER Hydrogen bonds between sections of the polypeptide backbone
Tertiary structure of a protein is - ANSWER unique 3 dimensional shape of the fully
folded polypeptide
All covalent bonds in a protein are disrupted, what level of structure is preserved? -
ANSWER No protein structure
Sodium channels are proteins that control the flow of sodium ions through the cell
membrane. The protein forms a pore, or opening, in the membrane. You purify what you
think are two different molecules of sodium channel, and you discover that one of the
proteins has a narrower pore diameter than the second and thus allows fewer sodium
ions to move across the membrane compared with the other. Based on this, which of the
following do you conclude?
A) These two sodium channels likely have different primary structures
B) These two sodium channels likely have different secondary structures
C) These two sodium channels likely have different tertiary structures
D) All of the above - ANSWER D
Nucleic Acids are made up of what - ANSWER Nucleotides
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