Test Bank For Anatomy And Physiology 7th Edition By Patton Thibodeau

Test Bank For Anatomy And Physiology 7th Edition By Patton Thibodeau

Patton and Thibodeau: Anatomy & Physiology, 7^th Edition

Chapter 2: The Chemical Basis of Life

Test Bank

TRUE/FALSE

1. Biochemistry deals with the chemical makeup of living organisms and the underlying process of life activities.

ANS: T DIF: Memorization REF: Page 34

TOP: Introduction

2.The number of protons in the nucleus of an atom determines its atomic mass.

ANS: F DIF: Memorization REF: Page 36

TOP:Atomic Number and Atomic Weight

3.The positively charged electrons are found in clouds outside the nucleus of an atom.

ANS: F DIF: Memorization REF: Page 36

TOP:Atomic Structure

4.Two shared pairs of electrons represent a single covalent bond.

ANS: F DIF: Application REF: Page 39 TOP: Covalent Bonds

5.The digestion of food is an example of a decomposition reaction.

ANS:TDIF:ApplicationREF:Page 40

TOP:Chemical Reactions

6.The number and arrangement of electrons orbiting in an atom’s outer shell determine its chemical activity.

ANS: T DIF: Application REF: Page 37 TOP: Energy Levels

7.An atom is chemically inert if its outermost shell has two pairs of electrons.

ANS: F DIF: Application REF: Page 37 TOP: Energy Levels

8.An isotope of an element contains the same number of neutrons but different numbers of protons.

ANS: F DIF: Memorization REF: Page 37

TOP: Isotopes

9.Electrovalent and ionic bonds are the same.

ANS: T DIF: Memorization REF: Page 38

TOP: Ionic Bonds

10.Radiation results from the breaking apart of the nucleus of an atom.

ANS: T DIF: Memorization REF: Page 38

TOP:Radioactivity

11.Radioactivity can cause an atom of one element to change to that of another element.

ANS: T DIF: Memorization REF: Page 38

TOP:Radioactivity

12.Ionizing radiation can be cancer-producing.

ANS: T DIF: Memorization REF: Page 38

TOP:Radioactivity

13.A substance that resists changes in pH when acids or bases are added is called a buffer.

ANS: T DIF: Application REF: Page 45 TOP: Buffers

14.The chemical reaction of an acid with a base always produces a salt and water.

ANS: T DIF: Application REF: Page 45 TOP: Salts

15.Water is the universal solvent.

ANS: T DIF: Memorization REF: Page 43

TOP: Water