HTHS 1110-unit 3 review WSU
Questions and All Correct Answers
2025-2026 Updated.
Thymine - Answer found only in DNA
Cytosine - Answer Found in both DNA and RNA
Guanine - Answer Found in both DNA and RNA
Adenine - Answer Found in both DNA and RNA
Uracil - Answer found only in RNA
Glucose - Answer Hydrophilic (polar; water soluble)
Fuctose - Answer Hydrophilic (polar; water soluble)
Galactose - Answer Hydrophilic (polar; water soluble)
Phenylalanine - Answer Hydrophobic (non polar; fat soluble)
Tyrosine - Answer hydrophobic (non polar; fat soluble)
Tryptophan - Answer hydrophobic (non polar; fat soluble)
Cholesterol - Answer hydrophobic (non polar; fat soluble)
deoxythymidine - Answer Hydrophilic (polar; water soluble)
organic compounds - Answer •Are those that form the building blocks of life
•contains carbon
amino acids - Answer Are the building blocks of protein and polypeptides
, Amino - Answer -NH2
• usually positive charge
•protein donors
carboxylic acid - Answer -COOH
•usually negative charge
•donates H+
Glutamate - Answer Used as a nerve signaling molecule
•positively charged
peptide bond - Answer •amino acids are chained together by a covalent bond called peptide
bond
•formed by a special case of the general dehydration synthesis reaction
Methionine - Answer Is the first amino acid in every protein
Polar if - Answer Can form hydrogen bonds with water molecules
Sulfhydryl - Answer -SH
Cysteine - Answer forms disulfide bonds
Primary sequence of a protein - Answer •the order in which amino acids are connected
• starts at the amino (-NH3+) ends
• ends with (-COO-) group
primary protein structure - Answer sequence of amino acids
• joined by peptide bond
• always present
secondary protein structure - Answer hydrogen bonding of the peptide backbone causes the
amino acids to fold into a repeating pattern
• either x helices or B-pleated sheets
Questions and All Correct Answers
2025-2026 Updated.
Thymine - Answer found only in DNA
Cytosine - Answer Found in both DNA and RNA
Guanine - Answer Found in both DNA and RNA
Adenine - Answer Found in both DNA and RNA
Uracil - Answer found only in RNA
Glucose - Answer Hydrophilic (polar; water soluble)
Fuctose - Answer Hydrophilic (polar; water soluble)
Galactose - Answer Hydrophilic (polar; water soluble)
Phenylalanine - Answer Hydrophobic (non polar; fat soluble)
Tyrosine - Answer hydrophobic (non polar; fat soluble)
Tryptophan - Answer hydrophobic (non polar; fat soluble)
Cholesterol - Answer hydrophobic (non polar; fat soluble)
deoxythymidine - Answer Hydrophilic (polar; water soluble)
organic compounds - Answer •Are those that form the building blocks of life
•contains carbon
amino acids - Answer Are the building blocks of protein and polypeptides
, Amino - Answer -NH2
• usually positive charge
•protein donors
carboxylic acid - Answer -COOH
•usually negative charge
•donates H+
Glutamate - Answer Used as a nerve signaling molecule
•positively charged
peptide bond - Answer •amino acids are chained together by a covalent bond called peptide
bond
•formed by a special case of the general dehydration synthesis reaction
Methionine - Answer Is the first amino acid in every protein
Polar if - Answer Can form hydrogen bonds with water molecules
Sulfhydryl - Answer -SH
Cysteine - Answer forms disulfide bonds
Primary sequence of a protein - Answer •the order in which amino acids are connected
• starts at the amino (-NH3+) ends
• ends with (-COO-) group
primary protein structure - Answer sequence of amino acids
• joined by peptide bond
• always present
secondary protein structure - Answer hydrogen bonding of the peptide backbone causes the
amino acids to fold into a repeating pattern
• either x helices or B-pleated sheets
