ASU BIO 181 Exam 1 Question and Answer |
100% Verified A+ | Past Questions
• The shared biochemistry of all life is often considered evidence for: -✓✓Shared
common descent of all life on earth.
• Water has which property or properties? -✓✓Hydrophilic
Forms hydrogen bonds
• Ocean acidification is resulting due to -✓✓Global release of CO2 through the use of
fossil fuels
• Which other element (besides Carbon) is often suggested as having potential for life -
✓✓Silicon
• Which kind of organic compound is pictured? -✓✓Amino acid
• What kind of molecule is pictured? -✓✓RNA
• Which kind of organic compound is pictured? -✓✓phospholipid
• All things being equal which fatty acid will have a lower melting point? -✓✓Short-chain
fatty acid
• What kind of molecule is pictured? -✓✓polypeptide
• Saturated or unsaturated fat? -✓✓saturated(top)
• Which type of molecular interaction is strongest? -✓✓Covalent bond
• Water is a... -✓✓polar molecule
• A low pH is typical of -✓✓acids
• What element is called the 'backbone of life'? -✓✓carbon
• DNA or RNA? -✓✓DNA
• This amino acid is capable of forming disulfide bridges -✓✓Cysteine
• Name this compound... -✓✓Cholesterol
, • Exothermic or Endothermic? -✓✓exothermic
• Which level of protein structure? -✓✓Quaternary
• The name of a conceptual model for enzyme action -✓✓Lock and Key, Induced Fit
• Which level of protein structure is shown in the picture below? -✓✓Primary
• Which level of protein structure is shown in the picture below for the two proteins? -
✓✓tertiary
• Would the subsitution (due to a mutation) of alanine (hydrophobic amino acid) for
serine (a polar and hydrophobic amino acid) have a large or small effect on the
structure of a protein? -✓✓Yes, likely a large effect. The substitution of two chemically
very different amino acids could have a large effect on protein structure.
• What type of chemical bond is important for stabilizing alpha-helix or Beta-sheets
between backbone atoms of amino acids in close proximity to one another? -
✓✓Hydrogen bonds
• If a protein is subject to changes in temperature, pH, or exposure to chemicals this
may result in: -✓✓Denaturation
• The image below shows what type of chemical compound? -✓✓Triacylglycerol
• The image below shows what kind of compound? -✓✓Lipid
A sterol, specifically cholesterol
• What kinds of structure will the following compound, a phospholipid, form in a watery
environment? -✓✓Membrane
Micelle
Liposome
• With the complementarity of nucleic acids in mind (in DNA strands) answer the
following question.
A particular stretch of DNA is sequenced and found to be 40% Guanine. What
percentage will be Adenine? -✓✓10%
• Which of the following macromolecules is most likely to form into a double helix? -
✓✓Nucleic Acid: DNA
• Which side will generally have a greater amount of matter present? The reactants or
the products? -✓✓Both will be equal.
100% Verified A+ | Past Questions
• The shared biochemistry of all life is often considered evidence for: -✓✓Shared
common descent of all life on earth.
• Water has which property or properties? -✓✓Hydrophilic
Forms hydrogen bonds
• Ocean acidification is resulting due to -✓✓Global release of CO2 through the use of
fossil fuels
• Which other element (besides Carbon) is often suggested as having potential for life -
✓✓Silicon
• Which kind of organic compound is pictured? -✓✓Amino acid
• What kind of molecule is pictured? -✓✓RNA
• Which kind of organic compound is pictured? -✓✓phospholipid
• All things being equal which fatty acid will have a lower melting point? -✓✓Short-chain
fatty acid
• What kind of molecule is pictured? -✓✓polypeptide
• Saturated or unsaturated fat? -✓✓saturated(top)
• Which type of molecular interaction is strongest? -✓✓Covalent bond
• Water is a... -✓✓polar molecule
• A low pH is typical of -✓✓acids
• What element is called the 'backbone of life'? -✓✓carbon
• DNA or RNA? -✓✓DNA
• This amino acid is capable of forming disulfide bridges -✓✓Cysteine
• Name this compound... -✓✓Cholesterol
, • Exothermic or Endothermic? -✓✓exothermic
• Which level of protein structure? -✓✓Quaternary
• The name of a conceptual model for enzyme action -✓✓Lock and Key, Induced Fit
• Which level of protein structure is shown in the picture below? -✓✓Primary
• Which level of protein structure is shown in the picture below for the two proteins? -
✓✓tertiary
• Would the subsitution (due to a mutation) of alanine (hydrophobic amino acid) for
serine (a polar and hydrophobic amino acid) have a large or small effect on the
structure of a protein? -✓✓Yes, likely a large effect. The substitution of two chemically
very different amino acids could have a large effect on protein structure.
• What type of chemical bond is important for stabilizing alpha-helix or Beta-sheets
between backbone atoms of amino acids in close proximity to one another? -
✓✓Hydrogen bonds
• If a protein is subject to changes in temperature, pH, or exposure to chemicals this
may result in: -✓✓Denaturation
• The image below shows what type of chemical compound? -✓✓Triacylglycerol
• The image below shows what kind of compound? -✓✓Lipid
A sterol, specifically cholesterol
• What kinds of structure will the following compound, a phospholipid, form in a watery
environment? -✓✓Membrane
Micelle
Liposome
• With the complementarity of nucleic acids in mind (in DNA strands) answer the
following question.
A particular stretch of DNA is sequenced and found to be 40% Guanine. What
percentage will be Adenine? -✓✓10%
• Which of the following macromolecules is most likely to form into a double helix? -
✓✓Nucleic Acid: DNA
• Which side will generally have a greater amount of matter present? The reactants or
the products? -✓✓Both will be equal.
