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Dr. Abrahams' BIO 141 (Seeley's Anatomy and
Physiology) Chapter 2-BIOCHEMISTRY Questions
and Answers (100% Correct Answers)
Isotope
Ans: when an element's nucleus has varying numbers of neutrons with stable
numbers of Protons it creates these
Atomic Number
Ans: the number of Protons in the nucleus of an atom.
Atomic Mass
Ans: the number of Protons & Neutrons in the nucleus of an atom.
Chemical Bond
Ans: forces of attraction between electrons of different atoms.
Types of Chemical Bonds
Ans: Ionic, Covalent
Covalent Bond
Ans: bond formed by sharing of electron PAIRS.
Ionic Bond
Ans: formed when one chemical DONATES an electron and one ACCEPTS it.
CATion
Ans: The ion that DONATES an electron in an Ionic Bond.
(Na⁺)
ANion
Ans: The ion that ACCEPTS or Takes an electron in an Ionic Bond.
(OH)⁻
Covalent Bonds
Ans: ²Single, ⁴Double, ⁶Triple, ⁺Polar⁻
Hydrogen
Hydrogen Bond
Ans: formed between adjacent H₂O's & in BIG organic compounds. (steroids,
proteins, DNA)
, 2 Inquire through: | Professional | Confidential Support
Helps form 3-D shape
Chemical Reactions
Ans: happen when old bonds break and new ones form.
Categories of Reactions
Ans: Anabolic/Synthesis
Catabolic/Decomp.
Reversible
Oxidation
Exchange
Anabolic or Synthesis Reaction
Ans: When Smaller compounds combine to form Larger compounds. A + B → AB
Dehydration Synthesis: Water formed during reaction, called metabolic H₂O. example:
ATP
Responsible for growth, maintenance & repair of body.
Catabolic or Decomposition Reaction
Ans: Larger compounds are broken down to form smaller ones. Digestive type
reactions. AB → A+B.
Hydrolysis Synthesis: H₂O used during reaction.
Reversible Reactions
Ans: Reaction can move from reactants to products & vice versa.
CO₂ + H₂0 ↔ H₂CO₃
Oxidation or Reduction Reactions
Ans: Exchange of electron between reactants.
Oxidation = LOSS
Reduction = GAIN
Exchange Reactions
Ans: Combination of anabolic & catabolic rxns.
AB + CD → AD + CB
Dr. Abrahams' BIO 141 (Seeley's Anatomy and
Physiology) Chapter 2-BIOCHEMISTRY Questions
and Answers (100% Correct Answers)
Isotope
Ans: when an element's nucleus has varying numbers of neutrons with stable
numbers of Protons it creates these
Atomic Number
Ans: the number of Protons in the nucleus of an atom.
Atomic Mass
Ans: the number of Protons & Neutrons in the nucleus of an atom.
Chemical Bond
Ans: forces of attraction between electrons of different atoms.
Types of Chemical Bonds
Ans: Ionic, Covalent
Covalent Bond
Ans: bond formed by sharing of electron PAIRS.
Ionic Bond
Ans: formed when one chemical DONATES an electron and one ACCEPTS it.
CATion
Ans: The ion that DONATES an electron in an Ionic Bond.
(Na⁺)
ANion
Ans: The ion that ACCEPTS or Takes an electron in an Ionic Bond.
(OH)⁻
Covalent Bonds
Ans: ²Single, ⁴Double, ⁶Triple, ⁺Polar⁻
Hydrogen
Hydrogen Bond
Ans: formed between adjacent H₂O's & in BIG organic compounds. (steroids,
proteins, DNA)
, 2 Inquire through: | Professional | Confidential Support
Helps form 3-D shape
Chemical Reactions
Ans: happen when old bonds break and new ones form.
Categories of Reactions
Ans: Anabolic/Synthesis
Catabolic/Decomp.
Reversible
Oxidation
Exchange
Anabolic or Synthesis Reaction
Ans: When Smaller compounds combine to form Larger compounds. A + B → AB
Dehydration Synthesis: Water formed during reaction, called metabolic H₂O. example:
ATP
Responsible for growth, maintenance & repair of body.
Catabolic or Decomposition Reaction
Ans: Larger compounds are broken down to form smaller ones. Digestive type
reactions. AB → A+B.
Hydrolysis Synthesis: H₂O used during reaction.
Reversible Reactions
Ans: Reaction can move from reactants to products & vice versa.
CO₂ + H₂0 ↔ H₂CO₃
Oxidation or Reduction Reactions
Ans: Exchange of electron between reactants.
Oxidation = LOSS
Reduction = GAIN
Exchange Reactions
Ans: Combination of anabolic & catabolic rxns.
AB + CD → AD + CB
