Of the 4 most abundant elements oxygen is the most

This preview shows page 1 - 3 out of 3 pages.

- Of the 4 most abundant elements oxygen is the most likely to form a asymmetrical bond 7. Explain what electronegativity is and how it affects molecules in chemical reactions. - Electronegativity measures how tightly an atom will hold on to its electrons. The lower the electronegativity the more potential energy. 8. Understand and apply concepts related to the first and second law of thermodynamics; when is a reaction likely to occur spontaneously? What kinds of reactions that you have seen require energy? Do more ‘ordered’ molecules require more energy to construct? Why? - Reactions are likely to occur spontaneously when the reaction does not require energy to be added - Endergonic reactions require energy to be added and exergonic reactions due not require that energy they react spontaneously. 9. Water is considered an important molecule for life on this planet. Why? What properties of water make it so “special?” - Water is an important molecule because it is an excellent solvent. It is such a good solvent because oxygen has a slightly negative charge and the hydrogens have a slightly positive charge, plus it has a bent shape keeping the two away from each other.
Image of page 1

Subscribe to view the full document.

Things to know and think about – Macromolecules and Membranes: 1. Describe each of the four macromolecules of life, what monomers comprise them, the types of bonds between the monomers that form the polymers, and any major examples and the function of each kind. 2. Explain what occurs during a) a condensation reaction and b) hydrolysis. -Condensation is building a molecule, while hydrolysis is the breaking down of ATP to ADP+Pi+E 3. Recognize the chemical structure of an amino acid. Explain the difference between an amino acid, a polypeptide and a protein. 4. Explain how the primary structure of a protein differs from its secondary, tertiary & quaternary structures. How does quaternary and tertiary structure affect form and function? 5. Explain why a change in the linear primary sequence of a protein can affect protein form and function. 6. Explain how enzymes catalyze chemical reactions and speed them up. Why is this important for living organisms?
Image of page 2
Image of page 3
You've reached the end of this preview.
  • Fall '12
  • freeman
  • DNA, Energy storage, Explain

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern