2.5 What happens during ionization? An atom or molecule gains or loses charged particles such as electrons. 2.6 How do acids and bases differ? Acids dissociate into an anion and a hydrogen ion (H+). Bases dissociate into a cation and a hydroxide ion (OH–). 2.7 At what pH are the concentrations of H+ 7 and OH− equal? 2.8 What is the difference between a A polymer consists of smaller molecules polymer and a monomer? called monomers. 2.9 How do saturated and unsaturated Unsaturated lipids have one or more fatty acids differ? double bonds between carbon atoms. 2.10 Where are phospholipids found in cells? Membranes 2.11 Where are sterols found in cells? Membranes 2.12 What distinguishes one amino acid from Side groups called R groups another? 2.13 isomer is always found in l-isomers proteins? 2.14 How are amino acids related to proteins? Proteins are composed of amino acids. 2.15 What property of a protein enables it to The three-dimensional shape carry out specific functions? 2.17 How are DNA and RNA similar in Both are polymers of nucleotides. structure? 2.18 How is ATP similar to a nucleotide in Ribose is the sugar in the adenosine RNA? In DNA? nucleotides in ATP and RNA. Deoxyribose is the sugar in the adenosine in DNA. Review 1. Atoms with the same atomic number and chemical behavior are classified as chemical elements. 2. 3. a. Ionic b. Single covalent bond c. Double covalent bonds d. Hydrogen bond 4. a. Synthesis reaction, condensation, or dehydration b. Decomposition reaction, digestion, or hydrolysis c. Exchange reaction d. Reversible reaction
2.5 What happens during ionization? An atom or molecule gains or loses charged particles such as electrons. 2.6 How do acids and bases differ? Acids dissociate into an anion and a hydrogen ion (H+). Bases dissociate into a cation and a hydroxide ion (OH–). 2.7 At what pH are the concentrations of H+ and OH− equal? 7 2.8 What is the difference between a polymer and a monomer? A polymer consists of smaller molecules called monomers. 2.9 How do saturated and unsaturated fatty acids differ? Unsaturated lipids have one or more double bonds between carbon atoms. 2.10 Where are phospholipids found in cells? Membranes 2.11 Where are sterols found in cells? Membranes 2.12 What distinguishes one amino acid from another? Side groups called R groups 2.13 isomer is always found in proteins? l-isomers 2.14 How are amino acids related to proteins? Proteins are composed of amino acids. 2.15 What property of a protein enables it to carry out specific functions? The three-dimensional shape 2.17 How are DNA and RNA similar in structure? Both are polymers of nucleotides. 2.18 How is ATP similar to a nucleotide in RNA? In DNA? Ribose is the sugar in the adenosine nucleotides in ATP and RNA. Deoxyribose is the sugar in the adenosine in DNA. Review 1. Atoms with the same atomic number and chemical behavior are classified as chemical elements. 2. 3. a. Ionic b. Single covalent bond c. Double covalent bonds d. Hydrogen bond 4. a. Synthesis reaction, condensation, or dehydration b. Decomposition reaction, digestion, or hydrolysis c. Exchange reaction d. Reversible reaction