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Questions and Answers
Which type of molecule is water considered in terms of its nucleophilic properties?
Which type of molecule is water considered in terms of its nucleophilic properties?
- Free radical
- Electrophile
- Nucleophile (correct)
- Neutral molecule
What atoms of biologic molecules are mentioned as nucleophiles in the text?
What atoms of biologic molecules are mentioned as nucleophiles in the text?
- Nitrogen and sulfur
- Carbon and phosphorus
- Hydrogen and oxygen
- Oxygen and nitrogen (correct)
Which type of bond is typically cleaved by nucleophilic attack by water?
Which type of bond is typically cleaved by nucleophilic attack by water?
- Disulfide bonds
- Peptide bonds
- Amide, glycoside, or ester bonds (correct)
- Phosphodiester bonds
In what type of reaction is water a product when monomer units are joined together?
In what type of reaction is water a product when monomer units are joined together?
Which bonds in polypeptides and oligonucleotides are noted as stable in the cell's aqueous environment?
Which bonds in polypeptides and oligonucleotides are noted as stable in the cell's aqueous environment?
Which is a common electrophile mentioned in the text?
Which is a common electrophile mentioned in the text?
Where do proteins tend to fold with the R-groups of amino acids with hydrophobic side chains?
Where do proteins tend to fold with the R-groups of amino acids with hydrophobic side chains?
What do most biomolecules possess in terms of functional groups?
What do most biomolecules possess in terms of functional groups?
What do amphipathic biomolecules have in terms of characteristics?
What do amphipathic biomolecules have in terms of characteristics?
Which component constitutes the foundation of the plasma membrane of an animal cell?
Which component constitutes the foundation of the plasma membrane of an animal cell?
What type of interactions do the forces involving biomolecules and water have?
What type of interactions do the forces involving biomolecules and water have?
Where are amino acids with charged or polar side chains generally present in proteins?
Where are amino acids with charged or polar side chains generally present in proteins?
What functional groups on serine, tyrosine, and threonine are points of covalent attachment for phosphoryl groups?
What functional groups on serine, tyrosine, and threonine are points of covalent attachment for phosphoryl groups?
What type of bonds link amino acids together in a polypeptide chain?
What type of bonds link amino acids together in a polypeptide chain?
What is the primary structure of a polypeptide determined by?
What is the primary structure of a polypeptide determined by?
How are aminoacyl residues in peptides named compared to free amino acids?
How are aminoacyl residues in peptides named compared to free amino acids?
In the peptide Lys-Leu-Tyr-Gln, what is the name of the carboxy-terminal residue?
In the peptide Lys-Leu-Tyr-Gln, what is the name of the carboxy-terminal residue?
What type of bond is present in the non-α peptide bond linking Glu to Cys in glutathione?
What type of bond is present in the non-α peptide bond linking Glu to Cys in glutathione?
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