mcdb midterm 1 practice problems exam
questions and answers
two carbon atoms held together in a double covalent bond share ____ electrons? -
Correct Answers -four
polar molecules - Correct Answers -have an unequal distribution of electric charge
sulfur is commonly found in the cysteine residues of proteins. this atom typically
functions by - Correct Answers -forming disulfide bridged that support tertiary structure
the "tails" of phospholipids are composed of hydrocarbon chains. these chains are ____
and are located on the ____ surface of the lipid bilayer. - Correct Answers -hydrophobic;
interior
a fat contains fatty acid and ____ - Correct Answers -a base
given a tRNA anticodon sequence of 3' GCU 5', which amino acid will be incorporated
into the nascent peptide strand?? - Correct Answers -arginine
please indicate what would happen if the following messenger RNA sequence where
mutated from 5' - AUGUUCCGGCCU- 3' to 5' - AUGUUCAGGCCU- 3'? - Correct
Answers -silent mutation- the peptide sequence would be unchanged
the amino acid glutamate has a carboxyl (-COOH) at the end of its side chain. given this
information, glutamate would be classified as - Correct Answers -polar; negatively
charged
during replication, the new DNA strand is synthesized - Correct Answers -in the 5' to 3'
direction
polysaccharides, polypeptides, and polynucleotides all ____ - Correct Answers -are
formed in condensation reactions
a molecule that is important in the storage of energy is ___ - Correct Answers -glycogen
the side chain of leucine is a hydrocarbon. in a folded protein, where might you find
leucine? - Correct Answers -in the interior of a cytoplasmic enzyme AND on the exterior
of a protein embedded in a membrane
questions and answers
two carbon atoms held together in a double covalent bond share ____ electrons? -
Correct Answers -four
polar molecules - Correct Answers -have an unequal distribution of electric charge
sulfur is commonly found in the cysteine residues of proteins. this atom typically
functions by - Correct Answers -forming disulfide bridged that support tertiary structure
the "tails" of phospholipids are composed of hydrocarbon chains. these chains are ____
and are located on the ____ surface of the lipid bilayer. - Correct Answers -hydrophobic;
interior
a fat contains fatty acid and ____ - Correct Answers -a base
given a tRNA anticodon sequence of 3' GCU 5', which amino acid will be incorporated
into the nascent peptide strand?? - Correct Answers -arginine
please indicate what would happen if the following messenger RNA sequence where
mutated from 5' - AUGUUCCGGCCU- 3' to 5' - AUGUUCAGGCCU- 3'? - Correct
Answers -silent mutation- the peptide sequence would be unchanged
the amino acid glutamate has a carboxyl (-COOH) at the end of its side chain. given this
information, glutamate would be classified as - Correct Answers -polar; negatively
charged
during replication, the new DNA strand is synthesized - Correct Answers -in the 5' to 3'
direction
polysaccharides, polypeptides, and polynucleotides all ____ - Correct Answers -are
formed in condensation reactions
a molecule that is important in the storage of energy is ___ - Correct Answers -glycogen
the side chain of leucine is a hydrocarbon. in a folded protein, where might you find
leucine? - Correct Answers -in the interior of a cytoplasmic enzyme AND on the exterior
of a protein embedded in a membrane
