Transcript Standardized Test Preparation (Practice)

Chapter 3
Standardized Test Prep
Preview
Multiple Choice
Short Response
Extended Response
Chapter 3
Standardized Test Prep
Multiple Choice
1. Which of the following is not a function of
polysaccharides?
A. energy source
B. energy storage
C. structural support
D. storage of genetic information
Chapter 3
Standardized Test Prep
Multiple Choice, continued
1. Which of the following is not a function of
polysaccharides?
A. energy source
B. energy storage
C. structural support
D. storage of genetic information
Chapter 3
Standardized Test Prep
Multiple Choice, continued
2. Which of the following statements is false?
F. A wax is a lipid.
G. Starch is a lipid.
H. Saturated fats are solid at room temperature.
J. Unsaturated fats are liquid at room temperature.
Chapter 3
Standardized Test Prep
Multiple Choice, continued
2. Which of the following statements is false?
F. A wax is a lipid.
G. Starch is a lipid.
H. Saturated fats are solid at room temperature.
J. Unsaturated fats are liquid at room temperature.
Chapter 3
Standardized Test Prep
Multiple Choice, continued
3. Which of the following molecules stores hereditary
information?
A. ATP
B. DNA
C. protein
D. carbohydrates
Chapter 3
Standardized Test Prep
Multiple Choice, continued
3. Which of the following molecules stores hereditary
information?
A. ATP
B. DNA
C. protein
D. carbohydrates
Chapter 3
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Multiple Choice, continued
4. What is the name of the molecule in plants that
stores sugars?
F. starch
G. protein
H. cellulose
J. glycogen
Chapter 3
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Multiple Choice, continued
4. What is the name of the molecule in plants that
stores sugars?
F. starch
G. protein
H. cellulose
J. glycogen
Chapter 3
Standardized Test Prep
Multiple Choice, continued
The figure below illustrates
the basic structure of a cell
membrane. Use the
figure to answer the questions
that follow.
5. Which of the following
molecules make up the
basic structure of a cell
membrane?
A. waxes
B. steroids
C. fatty acids
D. phospholipids
Chapter 3
Standardized Test Prep
Multiple Choice, continued
The figure below illustrates
the basic structure of a cell
membrane. Use the
figure to answer the questions
that follow.
5. Which of the following
molecules make up the
basic structure of a cell
membrane?
A. waxes
B. steroids
C. fatty acids
D. phospholipids
Chapter 3
Standardized Test Prep
Multiple Choice, continued
The figure below illustrates
the basic structure of a cell
membrane. Use the
figure to answer the questions
that follow.
6. The “tails” of the molecules
in the figure orient away from
water. Which of the following
describes the tail’s
movement away from water?
F. polar
G. adhesive
H. hydrophilic
J. hydrophobic
Chapter 3
Standardized Test Prep
Multiple Choice, continued
The figure below illustrates
the basic structure of a cell
membrane. Use the
figure to answer the questions
that follow.
6. The “tails” of the molecules
in the figure orient away from
water. Which of the following
describes the tail’s
movement away from water?
F. polar
G. adhesive
H. hydrophilic
J. hydrophobic
Chapter 3
Standardized Test Prep
Multiple Choice, continued
7. simple sugars : carbohydrates :: amino acids :
A. lipids
B. proteins
C. nucleic acids
D. amino acids
Chapter 3
Standardized Test Prep
Multiple Choice, continued
7. simple sugars : carbohydrates :: amino acids :
A. lipids
B. proteins
C. nucleic acids
D. amino acids
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Multiple Choice, continued
The figure below represents
the structural formula of a
molecule. Use the
figure to answer the question
that follows.
8. What is the name of the
functional group circled in the
structural formula?
F. amino
G. hydroxyl
H. phosphate
J. carboxyl
Chapter 3
Standardized Test Prep
Multiple Choice, continued
The figure below represents
the structural formula of a
molecule. Use the
figure to answer the question
that follows.
8. What is the name of the
functional group circled in the
structural formula?
F. amino
G. hydroxyl
H. phosphate
J. carboxyl
Chapter 3
Standardized Test Prep
Short Response
Proteins are affected by environmental conditions
such as heat and pH.
Explain why the process of cooking an egg cannot be
reversed.
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Short Response, continued
Proteins are affected by environmental conditions
such as heat and pH.
Explain why the process of cooking an egg cannot be
reversed.
Answer:
The heat that is added to the egg changes the bonds
in the proteins and other molecules that make up the
egg to such a large extent that the original protein
shape can no longer be distinguished.
Chapter 3
Standardized Test Prep
Extended Response
Enzymes are essential for the functioning of all cells.
Part A Explain what enzymes do that is essential for
cell function.
Part B Explain the induced fit model of enzyme
action.
Chapter 3
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Extended Response, continued
Answer:
Part A Enzymes catalyze chemical reactions that are
involved in important cell processes.
Part B Bonding of the substrates to enzymes causes a
slight change in the enzyme’s shape, thereby
weakening some of the bonds and lowering activation
energy.