1. Ch 2 Clicker Review

2. 1. Energy of movement
kinetic
potential
mechanical
radiant

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

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

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

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

7. 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

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

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

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

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

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

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

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

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

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

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

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

19. 18. Which shape represents starch?b c d e

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

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

22. 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

23. 22. Which shape represents globular protein?D e

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

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

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

27. 26. Which shape represents lipids?b c D e

28. 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

29. 28. Which shape represents glucose?b c D e

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

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