BIO 210 CHAPTER 2 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

1 BIO 210 CHAPTER 2 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Proton Correct Answer: Positive Charge Heavy Mass Election Correct Answer: Negative Charge Light Mass Neutron Correct Answer: No charge Heavy Mass Atomic Structure Correct Answer: Proton, Neutron, and Election 4 Most Common Elements in the Body Correct Answer: Carbon 2 Oxygen Hydrogen Nitrogen Ionic Bond Correct Answer: Formed from Cations and Anions Covalent Correct Answer: Atoms share one or more pairs of electrons Polar Correct Answer: Electrons shared unequally between atoms Nonpolar Correct Answer: Electrons shared equally between atoms Hydrogen Bond Correct Answer: Positive "end" of a polar molecule and negative "end" of a molecule attract to each other Cation Correct Answer: Positively charged ion 3 Anion Correct Answer: Negatively charge ion Three factors that could increase the rate of a chemical reaction Correct Answer: Temperature Concentrations Catalyst Acid Correct Answer: pH less than 7 Base Correct Answer: pH more than 7 Neutral Correct Answer: Pure water pH of 7 Properties of Water Correct Answer: Stabilizing body temp Protection Chemical reaction Transport 4 Carbohydrates Correct Answer: Composed of carbon, hydrogen, and oxygen. Lipids Correct Answer: substances that dissolve in nonpolar solvents Monosaccharide Correct Answer: Smallest Carbs Simple Sugar Glucose/Fructose Disaccharide Correct Answer: formed when two monosaccharides join Sucrose/Lactose Polysaccharide Correct Answer: Consist of many monosaccharides bound in long chains. Energy-storage molecule Glycogen Proteins 5 Correct Answer: Contain carbon, hydrogen, oxygen, nitrogen, and most have some sulfur. Amino Acids Correct Answer: Building blocks of proteins Primary structure Correct Answer: Amino acid structure Secondary Structure Correct Answer: Results from hydrogen bonding Tertiary Structure Correct Answer: With secondary folding caused by interactions within the polypeptide and its immediate environment Quaternary Structure Correct Answer: Relationships between individual subunits