1. Review Chapter 2

2. Which of the following particles is negatively charged?
Chapter 6
Chemistry in Biology
Chapter 6 Diagnostic Questions (1-31)
Which of the following particles is
negatively charged?
electron
isotope
neutron
proton

3. 2. Isotopes are created by a change in the
Chapter 6
Chemistry in Biology
Chapter 6 Diagnostic Questions
2. Isotopes are created by a change in the
number of what particle of an atom?
electrons
neutrons
protons
ions

4. 3. Identify the proteins that speed up the rate of chemical reactions.
Chapter 6
Chemistry in Biology
Chapter 6 Diagnostic Questions
3. Identify the proteins that speed up the rate
of chemical reactions.
substrates
enzymes
ions
reactants

5. neutrons and electrons protons and electrons protons and neutrons
Chapter 6
Chemistry in Biology
6.1 Formative Questions
4. What particles are in
an atom’s nucleus?
neutrons and electrons
protons and electrons
protons and neutrons
protons, neutrons and electrons

6. 5. What causes the overall charge of an atom to be zero?
Chapter 6
Chemistry in Biology
6.1 Formative Questions
5. What causes the overall charge of an atom
to be zero?
an equal number of protons and neutrons
an equal number of protons and electrons
an equal number of neutrons and electrons
an unequal number of protons and electrons

7. Which of the following particles is negatively charged?
Chapter 6
Chemistry in Biology
Chapter 6 Diagnostic Questions (1-31)
Which of the following particles is
negatively charged?
electron
isotope
neutron
proton

8. 6. What type of substance is water?
Chapter 6
Chemistry in Biology
6.1 Formative Questions
6. What type of substance is water?
a compound
an element
an isotope
a mixture

9. 7. What provides the energy for all living processes?
Chapter 6
Chemistry in Biology
6.1 Formative Questions
7. What provides the energy for all living
processes?
chemical bonds
ionic compounds
radioactive isotopes
van der Waals forces

10. 8. Which is a chemical reaction?
Chapter 6
Chemistry in Biology
6.2 Formative Questions
8. Which is a chemical reaction?
a match burning
salt dissolving
water boiling
gasoline evaporating

11. 9. Which chemical reaction is endothermic?
Chapter 6
Chemistry in Biology
6.2 Formative Questions
9. Which chemical reaction is endothermic?

12. 10. How does an enzyme increase the rate of a chemical reaction?
Chapter 6
Chemistry in Biology
6.2 Formative Questions
10. How does an enzyme increase the rate of
a chemical reaction?
It acts as a reactant.
It reduces the amount of heat produced.
It increases the amount of product.
It lowers the activation energy.

13. 11. What occurs at the active site in the enzyme substrate complex?
Chapter 6
Chemistry in Biology
6.2 Formative Questions
11. What occurs at the active site in the
enzyme substrate complex?

14. A. An exothermic chemical reaction takes place.
Chapter 6
Chemistry in Biology
6.2 Formative Questions
A. An exothermic chemical reaction takes
place.
Chemical bonds are broken and new
bonds are formed.
The enzyme gets used up in the
reaction.
The substrates provide energy for the
enzyme.

15. 12. Why is water able to dissolve a wide variety of solutes?
Chapter 6
Chemistry in Biology
6.3 Formative Questions
12. Why is water able to dissolve a wide
variety of solutes?
It acts as a catalyst.
Its pH is neutral.
It is a polar molecule.
It is an ionic compound.

16. 13. What type of bonds attracts water molecules
Chapter 6
Chemistry in Biology
6.3 Formative Questions
13. What type of bonds attracts water molecules
to each other and to other substances?
covalent bonds
double bonds
hydrogen bonds
ionic bonds

17. 14. Which ion, when released in water, causes a solution to be basic?
Chapter 6
Chemistry in Biology
6.3 Formative Questions
14. Which ion, when released in water, causes
a solution to be basic?
Cl–
OH– H+
Na+

18. 15. What is the name for a substance that keeps
Chapter 6
Chemistry in Biology
6.3 Formative Questions
15. What is the name for a substance that keeps
the pH in cells within the 6.5 to 7.5 pH range?
alkali
antacid
buffer
neutralizer

19. 16. Which element do almost all biological molecules contain?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
16. Which element do almost all biological
molecules contain?
carbon
nitrogen
phosphorus
sodium

20. How many covalent bonds can carbon form with other atoms?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
How many covalent bonds can carbon
form with other atoms? 1 2 4 8

21. 18. What type of biological molecule is an enzyme?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
18. What type of biological molecule is an
enzyme?
hormone
nucleic acid
protein
steroid

22. 19. What are fats, oils, and waxes composed of?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
19. What are fats, oils, and waxes composed of?
lipids
nucleotides
polypeptides
sugars

23. 20. Which biological molecule transports substances between cells?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
20. Which biological molecule transports
substances between cells?
carbohydrate
lipid
nucleic acid
protein

24. 21. What are the monomers that make up proteins?
Chapter 6
Chemistry in Biology
6.4 Formative Questions
21. What are the monomers that make up
proteins?
amino acids
fatty acids
glycerols
nucleotides

25. 22. Look at the following figure. Determine
Chapter 6
Chemistry in Biology
Chapter Assessment Questions
22. Look at the following figure. Determine
what the upward curve represents. ?
activation energy
reactants
products
enzymes

26. 23. Look at the energy levels in the atom.
Chapter 6
Chemistry in Biology
Chapter Assessment Questions
23. Look at the energy levels in the atom.
What is the maximum number of electrons
energy level two can hold? 2 4 6 8

27. 24. Explain why chemical equations must be balanced. Short answer.
Chapter 6
Chemistry in Biology
Chapter Assessment Questions
24. Explain why chemical equations must
be balanced. Short answer.
Answer: Chemical reactions require balance
of mass. Therefore, the number of
atoms of each element on the
reactant side must equal the number
of atoms of the same element on the
product side.

28. 25. Which is a result of van der Waals forces?
Chapter 6
Chemistry in Biology
Standardized Test Practice
25. Which is a result of van der Waals forces?
atoms sharing electrons
table salt dissolving in water
ionic compounds forming crystals
water molecules forming droplets

29. 26. What is true of this chemical reaction?
Chapter 6
Chemistry in Biology
Standardized Test Practice
26. What is true of this chemical reaction?

30. A. Energy is not needed to start the chemical reaction.
Chapter 6
Chemistry in Biology
Standardized Test Practice
A. Energy is not needed to start the
chemical reaction.
Heat and/or light energy are released
in this reaction.
The activation energy is greater than
the energy released.
The energy of the products and the
reactants is the same.

31. 27. Which fruit contains a higher concentration of hydrogen ions?
Chapter 6
Chemistry in Biology
Standardized Test Practice
27. Which fruit contains a higher concentration
of hydrogen ions?
tomatoes
bananas

32. 28. What do cellulose and chitin have in common?
Chapter 6
Chemistry in Biology
Standardized Test Practice
28. What do cellulose and chitin have in common?
They are energy-storing polymers.
They are found in the cells of animals.
They are structural polysaccharides.
They are composed of repeating
sucrose units.

33. 29. Which polysaccharide stores energy in muscle and liver tissue?
Chapter 6
Chemistry in Biology
Standardized Test Practice
29. Which polysaccharide stores energy in
muscle and liver tissue?
gluten
glycogen
starch
sucrolose

34. 30. What is the function of this biological macromolecule?
Chapter 6
Chemistry in Biology
Standardized Test Practice
30. What is the function
of this biological
macromolecule?
A. communicate signals between cells
B. produce vitamins and hormones
C. provide support and protection
D. store and transmit genetic information

35. 31. Which is a characteristic of all lipids?
Chapter 6
Chemistry in Biology
Standardized Test Practice
31. Which is a characteristic of all lipids?
They are saturated triglycerides.
They do not dissolve in water.
They are liquid at room temperature.
They store less energy than
carbohydrates.

36. Modeling Macromolecules
Group Grade

37. What type of element is this?
A. hydrogen
B. carbon
C. oxygen
D. helium

38. What are the three types of bonding that can take place with a carbon atom?
A. single
B. single, double
C. single, double, ring
D. single, double, ring and branched.

39. Which of the following are macromolecules?
Carbohydrate
Lipids, proteins
Proteins, carbohydrate
Lipids, carbohydrates, proteins, and nucleic acids

40. What atom do all four macromolecules have in common?
Nitrogen
Phosphorus
Carbon
oxygen

41. What type of bond is involved in all four macromolecules?
A. ionic
B. covalent

42. A monomer is the building block for a
_________________.
A. compound
B. element
C. atom
D. polymer

43. This is a monomer for A. carbohydrate B. lipids C. nucleic acids
D. proteins

44. What type of carbohydrate?
A. monosaccharide
B. disaccharide
C. polysaccharide

45. Which type of macromolecules have fatty acids?

46. A. saturated
B. unsaturated
C. polyunsaturated

47. What type of bond is involved in all four macromolecules?
A. ionic
B. covalent

48. A monomer is the building block for a
_________________.
A. compound
B. element
C. atom
D. polymer

49. This is a monomer for A. carbohydrate B. lipids C. nucleic acids
D. proteins

50. What type of carbohydrate?
A. monosaccharide
B. disaccharide
C. polysaccharide

51. Which type of macromolecules have fatty acids?

52. A. saturated
B. unsaturated
C. polyunsaturated