Ch 2 Clicker Review

1. Energy of movement kinetic potential mechanical radiant

2. Which particles dictate chemical behavior? protons neutrons electrons nucleus

3. Most abundant element in body? carbon hydrogen oxygen nitrogen

4. Energy of moving ions (K+) throughout body? kinetic electrical mechanical radiant

5. Smallest part of a compound that retains all the properties? electron atom proton molecule

6. Describes an electron? negative (-), 1 amu, located in nucleus positive (+), 1 amu, located in orbitals neutral (0), 1 amu, located in orbitals negative (-), 0 amu, located in orbitals

7. The reaction A + B →AB is an example denaturation reaction synthesis reaction decomposition reaction exchange reaction

8. Larger, unstable nuclei are likely to be radioisotopes radioactive used as medical tracers in diagnostic tests none of the above

9. Organic compounds that act as enzymes or building blocks in your body? carbohydrates proteins lipids nuclei acids ATP

10. Carbon is capable of these bonds double bonds triple bonds covalent bonds all of the above

11. Type of energy where your arm moves like a lever? kinetic potential mechanical chemical

12. Bond that unequally shares electrons. ionic polar covalent nonpolar covalent carbon hydrogen

13. Which is NOT a lipid? phospholipids triglycerides steroids polysaccharides

14. A bond in which electrons are transferred? ionic polar covalent nonpolar covalent carbon hydrogen

15. What type of bonds break to release energy from ATP? carbon hydrogen phosphate ionic

16. Which pH is indicative of a weak acid? 2 4 6 8 10

17. Identify the inorganic compound C12H22O11 C3H5(OH)3 none of the above

18. Which shape represents starch? b c d e

19. Collagen & keratin are examples of carbohydrates proteins lipids nucleic acids

20. Which make good electrolytes? acids bases salts all of the above

21. Why is water useful to your body’s processes? It has low heat capacity It is a good solvent It is chemically inert (doesn’t react) All of the above

22. Which shape represents globular protein? D e

23. When dissolved in water, acids release hydrogen ions (H+) accept hydrogen ions (H+) release hydroxyl ions (OH-) accept hydroxyl ions (OH-)

24. “Anabolic” is another way to describe decomposition reactions synthesis reactions exchange reactions neutralization reactions.

25. The liver stores this complex carbohydrate (polysaccharide). starch triglyceride glycogen keratin glucose

26. Which shape represents lipids? b c D e

27. RNA & DNA are both nucleic acids. What makes RNA different? only found in nucleus single-stranded has bases A,C,T,G has sugar deoxyribose

28. Which shape represents glucose? b c D e

29. The atomic number dictates the # of electrons # of protons # of neutrons mass number

30. Element always in proteins and nucleic acids, but NOT present in lipids & carbohydrates? carbon hydrogen oxygen nitrogen