Podcast
Questions and Answers
Which of the following is true about polar molecules?
Which of the following is true about polar molecules?
- They contain oxygen, nitrogen, sulfur, or phosphorus atoms (correct)
- They have covalent bonds
- They contain carbon and hydrogen atoms
- They have nonpolar bonds
Which of the following is true about noncovalent bonds?
Which of the following is true about noncovalent bonds?
- They store energy for useful work
- They are broken using enzymes (correct)
- They are stronger than thermal energies of random collisions
- They involve the sharing of electrons
Which type of bond is characterized by the sharing of electrons between atoms?
Which type of bond is characterized by the sharing of electrons between atoms?
- Ionic bond
- Covalent bond (correct)
- Hydrogen bond
- van der Waals attraction
Which of the following is NOT a basic property of cells?
Which of the following is NOT a basic property of cells?
Which type of bond is relatively weak and forms attractive forces between atoms of opposite charges?
Which type of bond is relatively weak and forms attractive forces between atoms of opposite charges?
Which type of noncovalent interaction is especially important in the behavior of water?
Which type of noncovalent interaction is especially important in the behavior of water?
Which type of bond holds molecules together through electrostatic attraction?
Which type of bond holds molecules together through electrostatic attraction?
Which level of protein structure involves the linking of polypeptide chains to form multisubunit functional proteins?
Which level of protein structure involves the linking of polypeptide chains to form multisubunit functional proteins?
What type of interaction helps stabilize protein structure through covalent linkage between cysteine residues?
What type of interaction helps stabilize protein structure through covalent linkage between cysteine residues?
Which type of proteins are composed of two or more distinct modules that fold independently of one another?
Which type of proteins are composed of two or more distinct modules that fold independently of one another?
What is the term for proteins that can adopt two or more conformations, regulated by something binding to its non-active site?
What is the term for proteins that can adopt two or more conformations, regulated by something binding to its non-active site?
What is the primary structure of a protein?
What is the primary structure of a protein?
Which of the following is a characteristic of nucleotides?
Which of the following is a characteristic of nucleotides?
Which of the following is a characteristic of alpha-helices?
Which of the following is a characteristic of alpha-helices?
What are the four levels of protein structure?
What are the four levels of protein structure?
Which of the following elements are found in polar molecules?
Which of the following elements are found in polar molecules?
Which of the following elements are found in nonpolar molecules?
Which of the following elements are found in nonpolar molecules?
What is the primary difference between polar and nonpolar molecules?
What is the primary difference between polar and nonpolar molecules?
Which type of bond involves the sharing of electrons between atoms?
Which type of bond involves the sharing of electrons between atoms?
Which type of bond is relatively weak and forms attractive forces between atoms of opposite charges?
Which type of bond is relatively weak and forms attractive forces between atoms of opposite charges?
What is the term for the water-based gel that makes up the cytoplasm of a eukaryotic cell?
What is the term for the water-based gel that makes up the cytoplasm of a eukaryotic cell?
Which of the following elements are NOT found in polar molecules?
Which of the following elements are NOT found in polar molecules?
Which type of bond holds molecules together through attractive forces between atoms of opposite charges?
Which type of bond holds molecules together through attractive forces between atoms of opposite charges?
Which of the following is a characteristic of lipids?
Which of the following is a characteristic of lipids?
What is the function of hydrogen bonds in biological systems?
What is the function of hydrogen bonds in biological systems?
Which type of macromolecule is the primary source of cell energy?
Which type of macromolecule is the primary source of cell energy?
Which of the following is a characteristic of monosaccharides?
Which of the following is a characteristic of monosaccharides?
Which type of bond is characterized by the sharing of electrons between atoms?
Which type of bond is characterized by the sharing of electrons between atoms?
Which of the following is NOT a function of lipids?
Which of the following is NOT a function of lipids?
Which of the following is NOT one of the four types of biological macromolecules?
Which of the following is NOT one of the four types of biological macromolecules?
What is the primary structure of a protein?
What is the primary structure of a protein?
Which level of protein structure involves the linking of polypeptide chains to form multisubunit functional proteins?
Which level of protein structure involves the linking of polypeptide chains to form multisubunit functional proteins?
Which type of noncovalent interaction is especially important in the behavior of water?
Which type of noncovalent interaction is especially important in the behavior of water?
Which type of bond holds molecules together through electrostatic attraction?
Which type of bond holds molecules together through electrostatic attraction?
Which of the following is true about polar molecules?
Which of the following is true about polar molecules?
What are the four levels of protein structure?
What are the four levels of protein structure?
Which type of protein structure involves long strands or flattened sheets that resist pulling?
Which type of protein structure involves long strands or flattened sheets that resist pulling?
Which type of noncovalent interaction occurs between R groups in the same polypeptide chain?
Which type of noncovalent interaction occurs between R groups in the same polypeptide chain?
Which type of bond is often covalently linked to another cysteine to help stabilize protein structure?
Which type of bond is often covalently linked to another cysteine to help stabilize protein structure?
What is the term for the linking of polypeptide chains to form a multisubunit functional protein?
What is the term for the linking of polypeptide chains to form a multisubunit functional protein?
Which type of protein structure can be stabilized by accessory proteins and may involve protein folding?
Which type of protein structure can be stabilized by accessory proteins and may involve protein folding?
Which type of protein can assume two or more conformations, regulated by something binding to its non-active site?
Which type of protein can assume two or more conformations, regulated by something binding to its non-active site?
What is the term for the part of a protein sequence that can function, evolve, and exist independently of the rest of the protein chain?
What is the term for the part of a protein sequence that can function, evolve, and exist independently of the rest of the protein chain?
What is the term for the large conformational change that can occur in a protein through ATP hydrolysis?
What is the term for the large conformational change that can occur in a protein through ATP hydrolysis?
How are cellular motors able to move along a track?
How are cellular motors able to move along a track?
