Preliminary_quiz w_answers

Preliminary_quiz w_answers - Preliminary MFM Quiz 1 The...

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Preliminary MFM Quiz 1. The major carrier of chemical energy in all cells is: A) adenosine monophosphate B) adenosine diphosphate C) adenosine trisphosphate D) guanosine trisphosphate E) carbamoyl phosphate 2. Enzymes are biological catalysts that enhance the rate of a reaction by: A) increasing the amount of free energy released B) decreasing the amount of free energy released C) increasing the energy of the transition state D) increasing the activation energy E) decreasing the activation energy 3. When a region of DNA must be repaired by removing and replacing some of the nucleotides, what ensures that the new nucleotides are in the correct sequence? A) The newly incorporated nucleotides must be complementary to those on the other (template) strand B) Specific enzymes bind the correct nucleotides C) The three-dimensional structure determines the order of nucleotides D) The repair enzyme recognizes the nucleotide being removed and brings in an identical one to replace it. E) DNA cannot be repaired and this explains why mutations occur 4. The three-dimensional structure of a protein is determined primarily by: A) non-covalent interactions with lipids, which provide a folding framework B) non-covalent interactions with nucleic acids C) the number of amino acids in the protein D) the sequence (order) of amino acids in the protein E) non-covalent interactions with ribosomes 5. The three-dimensional structure of macromolecules is maintained primarily through non- covalent interactions. Which of the following are not considered non-covalent interactions? A) hydrogen bonds B) van der Waals interactions C) amide bonds D) ionic interactions E) hydrophobic interactions 6. A major change that occurred in the evolution of eukaryotic cells from prokaryotic cells was the development of: A) DNA B) photosynthetic capability C) a cell membrane
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D) nuclear membranes E) ribosomes 7. The endoplasmic reticulum is: A) a highly convoluted, three-dimensional network of membrane-enclosed spaces. B)
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Preliminary_quiz w_answers - Preliminary MFM Quiz 1 The...

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