Biology > QUESTIONS & ANSWERS > BIO201 Exam 2 (All)

BIO201 Exam 2

Document Content and Description Below

Question 1 The amount of matter in an object is its Select one: a. mass. b. weight. c. atomic number. d. element. e. ionic charge. Question 2 A neutral atom will become a cation if it Select ... one: a. gains electrons. b. gains protons. c. loses electrons. d. loses protons. e. gains neutrons. Question 3 Reactions that use water to split molecules apart are called _______ reactions. Select one: This study source was downloaded by 100000852290574 from CourseHero.com on 01-24-2023 11:39:57 GMT -06:00 https://www.coursehero.com/file/38330226/BIO201-Exam-2docx/ a. dehydration b. synthesis c. hydrolysis d. reversible e. oxidation Question 4 A group of water molecules are held together by Select one: a. salt. b. hydrogen bonds. c. ionic bonds. d. double covalent bonds. e. polar covalent bonds. Question 5 Covalent bonds form when Select one: a. atomic nuclei fuse. b. molecules become ionized. c. neutrons are transferred from one atom to another. d. protons are lost from atoms. e. electrons are shared between two atoms. This study source was downloaded by 100000852290574 from CourseHero.com on 01-24-2023 11:39:57 GMT -06:00 https://www.coursehero.com/file/38330226/BIO201-Exam-2docx/ Question 6 The hydrogen and oxygen atoms in a molecule of water are held together by Select one: a. ionic bonds. b. peptide bonds. c. savings bonds. d. polar covalent bonds. e. nonpolar bonds. Question 7 In an oxidation-reduction reaction, ______ are transferred between molecules Select one: a. electrons b. oxygen Question 8 If the ratio of products and reactants are stable, the system is in _______. Select one: a. equilibrium b. steady state c. activation Question 9 Which of the following is not a use of X-ray imaging? Select one: This study source was downloaded by 100000852290574 from CourseHero.com on 01-24-2023 11:39:57 GMT -06:00 https://www.coursehero.com/file/38330226/BIO201-Exam-2docx/ a. breast cancer screening in mammography b. upper digestive tract abnormalities following barium ingestion c. brain tumor progression d. vertebrae fractures Question 10 An atom has an atomic number of 19 and a mass number of 39. This atom will have Select one: a. 19 neutrons. b. 20 neutrons. c. 39 neutrons. d. 58 neutrons. e. 20 electrons. [Show More]

Last updated: 2 years ago

Preview 1 out of 9 pages

Buy Now

Instant download

We Accept: