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Chapter 2 Quiz.pdf - Chapter 2 Quiz Dashboard My courses...

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3/15/2018 Chapter 2 Quiz https://de.lenoircc.edu/mod/quiz/review.php?attempt=1188821 1/21 Dashboard / My courses / EMS-3000-53848-2018CE2 / Section 1 / Chapter 2 Quiz Started on Sunday, February 25, 2018, 8:56 AM State Finished Completed on Sunday, February 25, 2018, 9:21 AM Time taken 24 mins 56 secs Marks 36.00/40.00 Grade 9.00 out of 10.00 ( 90 %) Question 1 Correct Mark 1.00 out of 1.00 A substance that dissociates in water, releasing hydrogen ions is a(an) Select one: a. base. b. salt. c. acid. correct d. protein. The correct answer is: acid.
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3/15/2018 Chapter 2 Quiz https://de.lenoircc.edu/mod/quiz/review.php?attempt=1188821 2/21 Question 2 Correct Mark 1.00 out of 1.00 Which of the following is a nucleic acid? Select one: a. Both DNA and RNA correct b. DNA c. RNA d. None of these choices are correct. The correct answer is: Both DNA and RNA Question 3 Correct Mark 1.00 out of 1.00 Substances that are water-loving are called Select one: a. hydrophoric. b. hydrochromic. c. hydrophilic. correct d. hydrophobic. The correct answer is: hydrophilic.
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3/15/2018 Chapter 2 Quiz https://de.lenoircc.edu/mod/quiz/review.php?attempt=1188821 3/21 Question 4 Correct Mark 1.00 out of 1.00 An ion is an atom or molecule that Select one: a. forms a visible glow. b. is in a gaseous state. c. is attracted to a north-seeking pole. d. carries an electrical charge. correct The correct answer is: carries an electrical charge. Question 5 Correct Mark 1.00 out of 1.00 Which of the following is NOT an instruction found in genes? Select one: a. How to join amino acids to make proteins b. How to replicate DNA c. How to break down complex carbohydrates correct d. How to make RNA The correct answer is: How to break down complex carbohydrates
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3/15/2018 Chapter 2 Quiz https://de.lenoircc.edu/mod/quiz/review.php?attempt=1188821 4/21 Question 6 Correct Mark 1.00 out of 1.00 The rungs of the DNA ladder are composed of Select one: a. nitrogen base pairs. correct b. adenine-ribose chain. c. sugar-phosphate chain. d. glucose-phosphate chain. The correct answer is: nitrogen base pairs. Question 7 Correct Mark 1.00 out of 1.00 The shape of the DNA molecule is a(an) Select one: a. globule. b. double helix. correct c. single strand. d. inverted T. The correct answer is: double helix.
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3/15/2018 Chapter 2 Quiz https://de.lenoircc.edu/mod/quiz/review.php?attempt=1188821 5/21 Question 8 Correct Mark 1.00 out of 1.00 Which subatomic particle determines the identity of an atom? Select one: a. Prion b. Electron c. Proton correct d. Neutron The correct answer is: Proton Question 9 Incorrect Mark 0.00 out of 1.00 Very small protein molecules that seem to be disease causing agents are called Select one: a. prions.
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