Download Chapter_6_review_questions Fall 2012

Ch. 6 Review
Chapter 6
Chemistry in Biology
Chapter Diagnostic
Questions
Which of the following particles is negatively
charged?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. electron
B. isotope
C. neutron
D. proton
Chapter 6
Chemistry in Biology
Chapter Diagnostic
Questions
Isotopes are created by a change in the
number of what particle of an atom?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. electrons
B. neutrons
C. protons
D. ions
Chapter 6
Chemistry in Biology
6.1 Formative
Questions
What provides the energy for all living
processes?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. chemical bonds
B. ionic compounds
C. radioactive isotopes
D. van der Waals forces
Chapter 6
Chemistry in Biology
6.2 Formative
Questions
Which is a chemical reaction?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. a match burning
B. salt dissolving
C. water boiling
D. gasoline evaporating
Chapter 6
Chemistry in Biology
Chapter Diagnostic
Questions
Identify the proteins that speed up the rate
of chemical reactions.
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. substrates
B. enzymes
C. ions
D. reactants
Chapter 6
Chemistry in Biology
6.1 Formative
Questions
What particles are in an
atom’s nucleus?
A
B
C
0%
0%
0%
C
1.
2.
3.
B
A
A. neutrons and electrons
B. protons and electrons
C. protons and neutrons
Chapter 6
Chemistry in Biology
6.1 Formative
Questions
What type of electron is available to form
bonds?
1.
2.
3.
0%
B
A
0%
A
B
C
0%
C
A. covalent
B. ionic
C. valence
D.nucleus
Chapter 6
Chemistry in Biology
6.1 Formative
Questions
What type of substance is water?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. a compound
B. an element
C. an isotope
D. a mixture
Chapter 6
Chemistry in Biology
6.2 Formative
Questions
To change the shape of an enzyme?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. denature
B. catalize
C. adhesion
D. cohesion
Chapter 6
Chemistry in Biology
6.2 Formative
Questions
How does an enzyme increase the rate of a
chemical reaction?
A. It acts as a reactant.
B. It reduces the amount
of heat produced.
0%
0%
0%
A
D. It lowers the
activation
energy.
B
C. It increases the
amount of product.
0%
D
A
B
C
D
C
1.
2.
3.
4.
Chapter 6
Chemistry in Biology
6.3 Formative
Questions
Which property is responsible for the fact
that water and oil do not mix?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. polarity
B. mass
C. phase
D. density
Chapter 6
Chemistry in Biology
Chapter Diagnostic
Questions
The atom has 10 protons and 11 neutrons,
what is it’s atomic mass?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. 10
B. 21
C. 11
D. 31
Chapter 6
Chemistry in Biology
Chapter Diagnostic
Questions
Identify the proteins that speed up the rate
of chemical reactions.
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. substrates
B. enzymes
C. ions
D. reactants
Chapter 6
Chemistry in Biology
6.1 Formative
Questions
Which type of ion forms when an atom
loses electrons?
0%
0%
C
A
B
C
D
B
A
0%
1.
2.
3.
4.
0%
D
A. positive
B. negative
C. neutral
D. either + or -
Chapter 6
Chemistry in Biology
Formative Questions
What is cohesion and adhesion? Give an
example of each.
0%
B
A
0%
A
B
C
0%
C
1.
2.
3.
Chapter 6
Chemistry in Biology
Formative Questions
When added to water, how does an acid affect the
pH and H+
A. The pH decreases while the
H+ increases.
B. The pH increases while the H+
decreases.
1.
2.
+
3.
C. Both pH and H decrease
4.
D. Both pH and H+
0%
D
0%
C
0%
B
A
0%
A
B
C
D
Chemistry in Biology
Chapter 6
6.2 Formative
Questions
Include glucose, lactose, sucrose and cellulose:
Proteins
D. Lipids
1.
2.
0%
A
B
0%
B
B.
C. Nucleic Acids
Carbohydrates
A
A.
Chapter 6
Chemistry in Biology
6.2 Formative
Questions
What occurs at the
active site in the
enzyme substrate
complex?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. An exothermic chemical
reaction takes place.
B. Chemical bonds are broken
and new bonds are formed.
C. The enzyme gets used up
in the reaction.
D. The substrates provide
energy for the enzyme.
Chapter 6
Chemistry in Biology
6.3 Formative
Questions
Why is water able to dissolve a wide variety
of solutes?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. It acts as a catalyst.
B. Its pH is neutral.
C. It is a polar molecule.
D. It is an ionic compound.
Chapter 6
Chemistry in Biology
6.3 Formative
Questions
What type of bonds attracts water molecules
to each other and to other substances?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. covalent bonds
B. double bonds
C. hydrogen bonds
D. ionic bonds
Chapter 6
Chemistry in Biology
6.3 Formative
Questions
Which ion, when released in water, causes a
solution to be basic?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. Cl–
B. OH–
C. H+
D. Na
Chapter 6
Chemistry in Biology
6.3 Formative
Questions
What is the name for a substance that keeps
the pH in cells within the 6.5 to 7.5 pH range?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. alkali
B. antacid
C. buffer
D. neutralizer
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
Which element do almost all biological
molecules contain?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. carbon
B. nitrogen
C. phosphorus
D. sodium
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
How many covalent bonds can
carbon form with other atoms?
A. 1
B. 2
C. 4
D. 8
1.
2.
3.
4.
0%
D
0%
C
0%
B
A
0%
A
B
C
D
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
What type of biological molecule is an
enzyme?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. hormone
B. nucleic acid
C. protein
D. steroid
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
What are fats, oils, and waxes composed
of?
A. lipids
B. nucleotides
C. polypeptides
D. sugars
1.
A
0%
C
0%
B
A
0%
B
C
D
0%
D
2.
3.
4.
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
What are the monomers that make up
proteins?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. amino acids
B. fatty acids
C. glycerols
D. nucleotides
Chapter 6
Chemistry in Biology
6.4 Formative
Questions
Which biological molecule transports
substances between cells?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. carbohydrate
B. lipid
C. nucleic acid
D. protein
Chapter 6
Chemistry in Biology
Chapter Assessment
Questions
?
Look at the following figure.
Determine what the upward
curve represents.
0%
B
A
0%
A
B
C
D
0%
0%
D
1.
2.
3.
4.
C
A. activation energy
B. reactants
C. products
D. enzymes
Chapter 6
Chemistry in Biology
Chapter Assessment
Questions
Explain why chemical equations must be
balanced.
Answer:
Conservation 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.
Chapter 6
Chemistry in Biology
Standardized Test
Practice
Which fruit contains
a higher concentration
of hydrogen ions?
A. tomatoes
B. bananas
0%
0%
D
0%
B
A
0%
A
B
C
D
C
1.
2.
3.
4.
Chapter 6
Chemistry in Biology
Standardized Test
Practice
A
B
C
D
0%
D
0%
C
B
A
What do cellulose and chitin have in
common?
A. They are energystoring polymers.
B. They are found in the
cells of animals.
1.
C. They are structural
2.
3.
polysaccharides.
4.
D. They are composed of
0%
0%
repeating sucrose
units.
Chapter 6
Chemistry in Biology
Standardized Test
Practice
What is the function of this
biological macromolecule?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. communicate signals
between cells
B. produce vitamins
and hormones
C. provide support
and protection
D. store and transmit
genetic information
Chapter 6
Chemistry in Biology
Standardized Test
Practice
Which is a characteristic of all lipids?
1.
2.
3.
4.
0%
C
0%
B
A
0%
A
B
C
D
0%
D
A. They are saturated
triglycerides.
B. They do not dissolve
in water.
C. They are liquid at
room
temperature.
D.