BIO201 Topic 2: Chemistry for Anatomy and Physiology Students (GRADED A) Quiz | TOP FORM PAPER | Straighterline

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Top of Form Question 1 Correct 1.75 points out of 1.75 Flag question Question text Which of the following best describes a proton? Select one: a. one negative charge, no mass,... found in orbitals b. no charge, mass of one, found in nucleus c. one positive charge, mass of one, found in nucleus d. subatomic particle with no electric charge e. None of these choices is correct. Feedback The correct answer is: one positive charge, mass of one, found in nucleus Question 2 Correct 1.75 points out of 1.75 Flag question Question text Intermolecular forces Select one: a. form dissociated ions. b. are electrostatic attractions between different molecules. c. evenly distribute electrical charge among all atoms in a sample. d. separate atoms and ions from one another. e. are found within molecules. Feedback The correct answer is: are electrostatic attractions between different molecules. Question 3 Correct 1.75 points out of 1.75 Flag question Question text Kinetic energy is Select one: a. the form of energy that actually does work. b. movement of ions or electrons. c. energy that flows between objects with different temperatures. d. stored energy that could do work but is not doing so. e. energy that moves in waves. Feedback The correct answer is: the form of energy that actually does work. Question 4 Correct 1.75 points out of 1.75 Flag question Question text The amount of matter in an object is its Select one: a. mass. b. weight. c. atomic number. d. element. e. ionic charge. Feedback The correct answer is: mass. Question 5 Correct 1.75 points out of 1.75 Flag question Question text Electrolytes are substances that Select one: a. form covalent bonds with water. b. conduct electricity when dissolved in water. c. cannot conduct electricity in solution. d. are NOT found in the human body in any appreciable amounts. e. are NOT charged particles. Feedback The correct answer is: conduct electricity when dissolved in water. Question 6 Correct 1.75 points out of 1.75 Flag question Question text In an oxidation-reduction reaction, are transferred between molecules Select one: a. electrons b. oxygen Feedback The correct answer is: electrons Question 7 Correct 1.75 points out of 1.75 Flag question Question text A molecule is Select one: a. a combination of atoms held together by chemical bonds. b. a positively charged ion. c. a negatively charged ion. d. a substance that conducts electricity when placed in solution. e. an alteration in the three-dimensional structure of a protein. Feedback The correct answer is: a combination of atoms held together by chemical bonds. Question 8 Correct 1.75 points out of 1.75 Flag question Question text Which of the following is an organic compound? Select one: a. hydrochloric acid (HCl) b. salt (NaCl) c. sucrose (C12H22O11) d. water (H2O) e. None of these choices are correct. Feedback The correct answer is: sucrose (C12H22O11) Question 9 Correct 1.75 points out of 1.75 Flag question Question text The conversion between different states of energy (e.g. potential energy to kinetic energy): Select one: a. is not 100% efficent b. is 100% efficent c. typically generates heat d. is not possible, energy can not change its state. e. is not 100% efficient and typically generates heat Feedback The correct answer is: is not 100% efficient and typically generates heat Question 10 Correct 1.75 points out of 1.75 Flag question Question text Electrons Select one: a. comprise the majority of the mass of an atom. b. are located in the nucleus of an atom. c. have a positive charge of one. d. are the subatomic particles most involved in bonding behavior of atoms. e. do not participate in the bonding of atoms. Feedback The correct answer is: are the subatomic particles most involved in bonding behavior of atoms. Question 11 Correct 1.75 points out of 1.75 Flag question Question text Cellulose is the Select one: a. storage carbohydrate in animals. b. storage carbohydrate in plants. c. nondigestible plant polysaccharide. d. major nutrient for most body cells. e. sugar found in RNA. Feedback The correct answer is: nondigestible plant polysaccharide. Question 12 Incorrect 0.00 points out of 1.75 Flag question Question text Fatty acid A has 10 double covalent bonds scattered throughout its carbon chain while fatty acid B has only single covalent bonds between the carbons in its chain. Select one: a. Fatty acid A is saturated. b. Fatty acid B is unsaturated. c. Both fatty acids are saturated. d. Both fatty acids are unsaturated. e. Fatty acid B is saturated. Feedback The correct answer is: Fatty acid B is saturated. Question 13 Correct 1.75 points out of 1.75 Flag question Question text Which of the following is the correct sequence from smallest to largest? Select one: a. amino acid, cell, protein, atom b. amino acid, atom, cell, protein c. cell, protein, amino acid, atom d. atom, amino acid, protein, cell e. protein, cell, amino acid, atom Feedback The correct answer is: atom, amino acid, protein, cell Question 14 Correct 1.75 points out of 1.75 Flag question Question text Which of the following nitrogen bases is found in RNA but not DNA? Select one: a. adenine b. guanine c. thymine d. uracil e. cytosine Feedback The correct answer is: uracil Question 15 Incorrect 0.00 points out of 1.75 Flag question Question text Which of the following chemical reactions best represents the decomposition of ATP? Select one: a. ATP + ADP → ATP b. ADP + ADP + ADP → ATP c. ATP + energy → ADP + H2O d. ADP + Pi + energy → ATP + H2O e. ATP + H2O → ADP + Pi + energy Feedback The correct answer is: ATP + H2O → ADP + Pi + energy Question 16 Correct 1.75 points out of 1.75 Flag question Question text Adjacent amino acids in a polypeptide chain are held together by Select one: a. hydrogen bonds. b. ionic bonds. c. Van der Waals bonds. d. peptide bonds. e. high energy bonds. Feedback The correct answer is: peptide bonds. Question 17 Correct 1.75 points out of 1.75 Flag question Question text Phospholipids are important components of the plasma membrane. What does "E" represent on the diagram? Select one: a. phosphorus b. oxygen c. nitrogen d. polar (hydrophilic) region e. nonpolar (hydrophobic) region Feedback The correct answer is: oxygen Question 18 Correct 1.75 points out of 1.75 Flag question Question text Phospholipids are important components of the plasma membrane. What does "A" represent on the diagram? Select one: a. phosphorus b. oxygen c. nitrogen d. polar (hydrophilic) region e. nonpolar (hydrophobic) region Feedback The correct answer is: polar (hydrophilic) region Question 19 Correct 1.75 points out of 1.75 Flag question Question text Water accounts for 50% of the weight of a young adult female and 60% of a young adult male. What kind of atom is found at "C"? Select one: a. hydrogen bond b. water molecule c. oxygen atom d. hydrogen atom e. polar covalent bond Feedback The correct answer is: hydrogen atom Question 20 Correct 1.75 points out of 1.75 Flag question Question text Solution A increases its acidity. This means that the Select one: a. solution is closer to neutrality. b. pH of the solution has increased. c. solution will now accept more protons. d. number of hydrogen ions has decreased. e. number of hydrogen ions has increased. Feedback The correct answer is: number of hydrogen ions has increased. Bottom of Form [Show More]

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