BMB251EXAM1

BMB251EXAM1 - There are 33 questions with only one correct...

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There are 33 questions with only one correct answer for each question (3 points each). You have 60 min to finish the exam. Don't submit till you have finished the exam. 1. Which of the following statement about eukaryotes and prokaryotes is INCORRECT? A. Both eukaryotes and prokaryotes use DNA as genetic information carrier. B. Both eukaryotes and prokaryotes store genetic information in the nucleus. C. Both eukaryotes and prokaryotes are living organisms. D. Both eukaryotes and prokaryotes use ATP as energy carrier molecule. Points Earned: 3/3 Correct Answer: B Your Response: B 2. In the figure below, what is the right assignment of the three parts of a nucleotide?
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A. (1) phosphate, (2) sugar, (3) base. B. (1) base, (2) sugar, (3) phosphate. C. (1) sugar, (2) base, (3) phosphate. D. (1) base, (2) phosphate, (3) sugar. Points Earned: 3/3 Correct Answer: A Your Response: A 3. Which of the following statement is CORRECT regarding DNA, RNA, and protein? A. DNA can template DNA synthesis, the process is called translation. B. DNA can template RNA synthesis, the process is called transcription. C. Protein is the template for RNA synthesis,
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the process is called transcription. D. RNA can template protein synthesis, the process is called transcription. Points Earned: 3/3 Correct Answer: B Your Response: B 4. How do base pairing rules work during DNA synthesis? A. A pairs U. B. A pairs G. C. T pairs C. D. A pairs T. Points Earned: 3/3 Correct Answer: D Your Response: D 5. Living organisms can be separated into three major branches, these are: A. Methanococcus, bacteria, and fruit flies. B. Methanococcus, E.coli, and fruit flies. C. Archea, bacteria, and eukaryotes. D. Archea, E.coli, and fruit flies. Points Earned: 3/3
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Correct Answer: C Your Response: C 6. Of the following elements, which is NOT found in human bodies? A. Si B. H C. C D. O Points Earned: 3/3 Correct Answer: A Your Response: A 7. Which statement below is a CORRECT description of non-covalent bond interactions? A. van der Waals attraction only happens when two molecules are at a large distance. B. Inside a H2O molecule, there are two hydrogen bonds. C. In ionic bond formation, electron is shared between two atoms. D. Hydrogen bond is formed between an –NH2 (amine) group and a –CO- (carbonyl) group. Points Earned: 3/3 Correct Answer: B Your Response: B 8.
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Which of the following is the CORRECT match between monomers and their corresponding large molecules (polymers) inside cells. A. Sugar with polysaccharides, fatty acids with phospholipid, nucleotides with protein, amino acids with nucleic acid. B. Sugar with phopholipid, fatty acids with polysaccharides, nucleotides with protein, amino acids with nucleic acid. C.
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This note was uploaded on 12/06/2009 for the course BMB 251 at Penn State.

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BMB251EXAM1 - There are 33 questions with only one correct...

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