Rutgers Biology Exam 1 (115) Questions
and Answers Graded A+
You are studying a poison that interferes with the process of protein transport. You
have determined that this poison inhibits the formation of vesicles by the rough
endoplasmic reticulum. Hypothesize which of the following steps in protein
transport STILL OCCUR despite the cell being exposed to the poison?
I. Tertiary folding of the polypeptide.
II. Exocytosis of the protein
III. Formation of the mRNA
IV. Hydrolysis of peptide bonds
V. Protein modification in Golgi Apparatus
A. II only
B. I, III, and IV
C. II, III, and V
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,D. II and V - Correct answer-B. I, III, and IV
If an organism is incapable of neuronal plasticity, which of the following will still
occur.
A. removal of existing synapses
B. neuronal development
C. encoding to short-term memory
D. retrieval from long-term memory - Correct answer-B. neuronal development
Compare and contrast the components of a chloroplast. Photosystem II is located in
the ______________ and the Calvin cycle occurs in the ______________.
A. outer membrane, cytosol
B. thylakoid membrane, stroma
C. inner membrane, thylakoid
D. stroma, thylakoid membrane - Correct answer-B. thylakoid membrane, stroma
The oxygen molecules that are used in the mitochondrion during cell respiration
move into the cell because they:
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,A. are actively transported against their concentration gradient.
B. cycle through ATP synthase.
C. bind to transmembrane proteins which produce channels in the membrane.
D. follow their concentration gradient. - Correct answer-D. follow their
concentration gradient.
Compare and contrast organelles. Which of the following is/are TRUE regarding
the endoplasmic reticulum and Golgi apparatus?
I. Both organelles are contiguous with the nuclear envelope.
II. Both the Golgi and ER are studded with ribosomes.
III. The ER is involved both protein synthesis and modification, the Golgi only
with protein synthesis.
IV. The Golgi is a set of separate compartments while the ER has a single
continuous lumen.
A. I and II
B. II and III
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, C. IV only
D. III only - Correct answer-C. IV only
The human small intestine has a pH of about 5.5, the human stomach has a pH of
2. Diagnose the result of taking a medication that lowers the pH in the intestine to
the same as in the stomach? The intestinal enzymes _________
A. will stimulate an abnormally high rate of digestion.
B. will denature and will no longer be biologically active.
C. will function properly and begin to digest materials in the stomach.
D. will raise the pH of the stomach and begin to function. - Correct answer-B. will
denature and will no longer be biologically active.
Identify which of the following statements are functions of enzymes in biological
systems.
I. lower the activation energy needed for a reaction
II. increase the rate of chemical reactions in cells
III. physically bring together two reactants
IV. facilitate the breaking of chemical bonds
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and Answers Graded A+
You are studying a poison that interferes with the process of protein transport. You
have determined that this poison inhibits the formation of vesicles by the rough
endoplasmic reticulum. Hypothesize which of the following steps in protein
transport STILL OCCUR despite the cell being exposed to the poison?
I. Tertiary folding of the polypeptide.
II. Exocytosis of the protein
III. Formation of the mRNA
IV. Hydrolysis of peptide bonds
V. Protein modification in Golgi Apparatus
A. II only
B. I, III, and IV
C. II, III, and V
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,D. II and V - Correct answer-B. I, III, and IV
If an organism is incapable of neuronal plasticity, which of the following will still
occur.
A. removal of existing synapses
B. neuronal development
C. encoding to short-term memory
D. retrieval from long-term memory - Correct answer-B. neuronal development
Compare and contrast the components of a chloroplast. Photosystem II is located in
the ______________ and the Calvin cycle occurs in the ______________.
A. outer membrane, cytosol
B. thylakoid membrane, stroma
C. inner membrane, thylakoid
D. stroma, thylakoid membrane - Correct answer-B. thylakoid membrane, stroma
The oxygen molecules that are used in the mitochondrion during cell respiration
move into the cell because they:
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,A. are actively transported against their concentration gradient.
B. cycle through ATP synthase.
C. bind to transmembrane proteins which produce channels in the membrane.
D. follow their concentration gradient. - Correct answer-D. follow their
concentration gradient.
Compare and contrast organelles. Which of the following is/are TRUE regarding
the endoplasmic reticulum and Golgi apparatus?
I. Both organelles are contiguous with the nuclear envelope.
II. Both the Golgi and ER are studded with ribosomes.
III. The ER is involved both protein synthesis and modification, the Golgi only
with protein synthesis.
IV. The Golgi is a set of separate compartments while the ER has a single
continuous lumen.
A. I and II
B. II and III
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, C. IV only
D. III only - Correct answer-C. IV only
The human small intestine has a pH of about 5.5, the human stomach has a pH of
2. Diagnose the result of taking a medication that lowers the pH in the intestine to
the same as in the stomach? The intestinal enzymes _________
A. will stimulate an abnormally high rate of digestion.
B. will denature and will no longer be biologically active.
C. will function properly and begin to digest materials in the stomach.
D. will raise the pH of the stomach and begin to function. - Correct answer-B. will
denature and will no longer be biologically active.
Identify which of the following statements are functions of enzymes in biological
systems.
I. lower the activation energy needed for a reaction
II. increase the rate of chemical reactions in cells
III. physically bring together two reactants
IV. facilitate the breaking of chemical bonds
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