)
,Chapter 1: Cellular Biology
MULTIPLE CHOICE
1. Which Statement Best Describes The Cellular Function Of Metabolic
Absorption?
a. Cells Can Produce Proteins. C. Cells Can Take In And Use Nutrients.
b. Cells Can Secrete Digestive Enzymes. D. Cells Can Synthesize Fats.
ANSWER: C
In Metabolic Absorption, All Cells Take In And Use Nutrients And Other Substances
From Thei R Surroundings. The Remaining Options Are Not Inclusive In Their
Descriptions Of Cellular M Etabolic Absorption.
PTS: 1 REFERENCE:Page 2
2. Most Of A Cell’s Genetic Information, Including RNA And DNA, Is Contained In The:
a. Mitochondria C. Nucleolus
b. Ribosome D. Lysosome
ANSWER: C
The Nucleus Contains The Nucleolus, A Small Dense Structure Composed Largely Of
RNA, M Ost Of The Cellular DNA, And The DNA-
Binding Proteins, Such As The Histones, Which Regulate Its Activity. The Other Options
Do N Ot Contain Most Of A Cell’s Genetic Information.
PTS: 1 REFERENCE:Page 2
3. Which Component Of The Cell Produces Hydrogen Peroxide (HNURSINGTB.COM
2O2) By Using Oxygen To Remove Hydrogen Atoms From Specific Substrates In An
Oxidativ E Reaction?
a. Lysosomes C. Ribosomes
b. Peroxisomes D. Oxyhydrosomes
ANSWER: B
Peroxisomes Are So Named Because They Usually Contain Enzymes That Use Oxygen
To Rem Ove Hydrogen Atoms From Specific Substrates In An Oxidative Reaction That
Produces H2O2, Which Is A Powerful Oxidant And Potentially Destructive If It
Accumulates Or Escapes From Peroxisomes. Ribosomes Are RNA-
Protein Complexes (Nucleoproteins) That Are Synthesized In The Nucleolus And
Secreted Into The Cytoplasm Through Pores In The Nuclear Envelope Called Nuclear
Pore Complexes. Lys Osomes Are Saclike Structures That Originate From The Golgi
Complex And Contain More Tha N 40 Digestive Enzymes Called Hydrolases, Which
Catalyze Bonds In Proteins, Lipids, Nuclei C Acids, And Carbohydrates. Oxyhydrosomes
Are Involved In Enzyme Production.
PTS: 1 REFERENCE:Page 8
4. Which Cell Component Is Capable Of Cellular Autodigestion When It Is Released During
Cell I Njury?
, a. Ribosome C. Smooth Endoplasmic Reticulum
b. Golgi Complex D. Lysosomes
ANSWER: D
The Lysosomal Membrane Acts As A Protective Shield Between The Powerful Digestive
Enzy Mes Within The Lysosome And The Cytoplasm, Preventing Their Leakage Into The
Cytoplasmi C Matrix. Disruption Of The Membrane By Various Treatments Or Cellular
Injury Leads To A R Elease Of The Lysosomal Enzymes, Which Can Then React With
Their Specific Substrates, Caus Ing Cellular Self-Digestion. The Other Options Do Not
Correctly Describe This Process.
PTS: 1 REFERENCE:Pages 7-8
5. What Is The Sequence Of Steps In The Development Of A Digestive Enzyme By The
Pancreas Ce Lls From The Initial Transcription To The Release From The Cell?
a. The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Riboso Me For Synthesis, And Is Transported In A Secretory Vesicle To The Cell
Membrane.
b. The Enzyme Is Transcribed From RNA By DNA In The Nucleus, Proceeds To The
Lysoso Me For Synthesis, And Is Transported In An Encapsulated Membrane To The
Cell Membra Ne.
c. The Enzyme Is Transcribed By The Mitochondria In The Nucleus, Proceeds To The
Riboso Me For Synthesis, And Is Transported In A Cytoskeleton To The Cell
Membrane.
d. The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Golgi Complex For Synthesis, And Is Transported In A Cytosol To The Cell
Membrane.
ANSWER: A
The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Ribosome F Or Synthesis, And Is Transported In A Secretory Vesicle To The Cell
Membrane. The Other Opt Ions Do Not Correctly Describe This Process.
NURSINGTB.COM
PTS: 1 REFERENCE:Page 7 | Figure 1-5
6. During Which Phase Of The Cell Cycle Is DNA Synthesized?
a. G1 C. G2
b. S D. M
ANSWER: B
The Four Designated Phases Of The Cell Cycle Are: (1) The G1 Phase (G = Gap), Which
Is The Period Between The M Phase (M = Mitosis) And The Start Of DNA Synthesis; (2)
The S Pha Se (S = Synthesis), During Which DNA Is Synthesized In The Cell Nucleus;
(3) The G2 Phase
, During Which RNA And Protein Synthesis Occurs, The Period Between The
Completion Of DNA Synthesis And The Next Phase (M); And (4) The M Phase, Which
Includes Nuclear And Cytoplasmic Division.
PTS: 1 REFERENCE:Page 37
7. What Organic Compound Facilitates Transportation Across Cell Membranes By Acting As
Recep Tors, Transport Channels For Electrolytes, And Enzymes To Drive Active Pumps?
, a. Lipids C. Proteins
,Chapter 1: Cellular Biology
MULTIPLE CHOICE
1. Which Statement Best Describes The Cellular Function Of Metabolic
Absorption?
a. Cells Can Produce Proteins. C. Cells Can Take In And Use Nutrients.
b. Cells Can Secrete Digestive Enzymes. D. Cells Can Synthesize Fats.
ANSWER: C
In Metabolic Absorption, All Cells Take In And Use Nutrients And Other Substances
From Thei R Surroundings. The Remaining Options Are Not Inclusive In Their
Descriptions Of Cellular M Etabolic Absorption.
PTS: 1 REFERENCE:Page 2
2. Most Of A Cell’s Genetic Information, Including RNA And DNA, Is Contained In The:
a. Mitochondria C. Nucleolus
b. Ribosome D. Lysosome
ANSWER: C
The Nucleus Contains The Nucleolus, A Small Dense Structure Composed Largely Of
RNA, M Ost Of The Cellular DNA, And The DNA-
Binding Proteins, Such As The Histones, Which Regulate Its Activity. The Other Options
Do N Ot Contain Most Of A Cell’s Genetic Information.
PTS: 1 REFERENCE:Page 2
3. Which Component Of The Cell Produces Hydrogen Peroxide (HNURSINGTB.COM
2O2) By Using Oxygen To Remove Hydrogen Atoms From Specific Substrates In An
Oxidativ E Reaction?
a. Lysosomes C. Ribosomes
b. Peroxisomes D. Oxyhydrosomes
ANSWER: B
Peroxisomes Are So Named Because They Usually Contain Enzymes That Use Oxygen
To Rem Ove Hydrogen Atoms From Specific Substrates In An Oxidative Reaction That
Produces H2O2, Which Is A Powerful Oxidant And Potentially Destructive If It
Accumulates Or Escapes From Peroxisomes. Ribosomes Are RNA-
Protein Complexes (Nucleoproteins) That Are Synthesized In The Nucleolus And
Secreted Into The Cytoplasm Through Pores In The Nuclear Envelope Called Nuclear
Pore Complexes. Lys Osomes Are Saclike Structures That Originate From The Golgi
Complex And Contain More Tha N 40 Digestive Enzymes Called Hydrolases, Which
Catalyze Bonds In Proteins, Lipids, Nuclei C Acids, And Carbohydrates. Oxyhydrosomes
Are Involved In Enzyme Production.
PTS: 1 REFERENCE:Page 8
4. Which Cell Component Is Capable Of Cellular Autodigestion When It Is Released During
Cell I Njury?
, a. Ribosome C. Smooth Endoplasmic Reticulum
b. Golgi Complex D. Lysosomes
ANSWER: D
The Lysosomal Membrane Acts As A Protective Shield Between The Powerful Digestive
Enzy Mes Within The Lysosome And The Cytoplasm, Preventing Their Leakage Into The
Cytoplasmi C Matrix. Disruption Of The Membrane By Various Treatments Or Cellular
Injury Leads To A R Elease Of The Lysosomal Enzymes, Which Can Then React With
Their Specific Substrates, Caus Ing Cellular Self-Digestion. The Other Options Do Not
Correctly Describe This Process.
PTS: 1 REFERENCE:Pages 7-8
5. What Is The Sequence Of Steps In The Development Of A Digestive Enzyme By The
Pancreas Ce Lls From The Initial Transcription To The Release From The Cell?
a. The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Riboso Me For Synthesis, And Is Transported In A Secretory Vesicle To The Cell
Membrane.
b. The Enzyme Is Transcribed From RNA By DNA In The Nucleus, Proceeds To The
Lysoso Me For Synthesis, And Is Transported In An Encapsulated Membrane To The
Cell Membra Ne.
c. The Enzyme Is Transcribed By The Mitochondria In The Nucleus, Proceeds To The
Riboso Me For Synthesis, And Is Transported In A Cytoskeleton To The Cell
Membrane.
d. The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Golgi Complex For Synthesis, And Is Transported In A Cytosol To The Cell
Membrane.
ANSWER: A
The Enzyme Is Transcribed From DNA By RNA In The Nucleus, Proceeds To The
Ribosome F Or Synthesis, And Is Transported In A Secretory Vesicle To The Cell
Membrane. The Other Opt Ions Do Not Correctly Describe This Process.
NURSINGTB.COM
PTS: 1 REFERENCE:Page 7 | Figure 1-5
6. During Which Phase Of The Cell Cycle Is DNA Synthesized?
a. G1 C. G2
b. S D. M
ANSWER: B
The Four Designated Phases Of The Cell Cycle Are: (1) The G1 Phase (G = Gap), Which
Is The Period Between The M Phase (M = Mitosis) And The Start Of DNA Synthesis; (2)
The S Pha Se (S = Synthesis), During Which DNA Is Synthesized In The Cell Nucleus;
(3) The G2 Phase
, During Which RNA And Protein Synthesis Occurs, The Period Between The
Completion Of DNA Synthesis And The Next Phase (M); And (4) The M Phase, Which
Includes Nuclear And Cytoplasmic Division.
PTS: 1 REFERENCE:Page 37
7. What Organic Compound Facilitates Transportation Across Cell Membranes By Acting As
Recep Tors, Transport Channels For Electrolytes, And Enzymes To Drive Active Pumps?
, a. Lipids C. Proteins
