Essentials OfOral Histology And Embryology6thedition Chiego 1
,Essentials OfOral Histology And Embryology6thedition Chiego 2
Chapter01: Development and Structure of Cells and Tissues Chiego: Essentials of Oral
Histology and Embryology, 6th Edition
MULTIPLE CHOICE
1. Mitochondriaproduce which chemical for intracellular energy?
a. ADP
b. ATP
c. RNA
d. DNA
ANS: B
Feedback
A Mitochondria generate energythrough ATP, not ADP, production.
B Correct. Mitochondria produce energyvia ATP.
C Mitochondria generate energythrough ATP, not RNA, production.
D Mitochondria generate energythroughATP, not DNA, production.
DIF: Recall REF: pp. 2-3 OBJ: 1
2. Eachtissue originates from mesoderm, EXCEPT one. Which is the EXCEPTION?
a. Bone
b. Liver
c. Blood
d. Muscle
ANS: B
Feedback
A Bone tissue develops from mesodermalcells.
B Correct. Liver tissue is produced byendodermal cells.
C Blood develops from mesodermal cells.
D Muscletissuedevelops frommesodermalcells.
DIF: Recall REF: p. 6 OBJ: 3
3. Whichchemical is called the second messenger?
a. aDNA
b. mRNA
c. dGMP
,Essentials OfOral Histology And Embryology6thedition Chiego 3
d. cAMP
ANS: D
Feedback
A cAMP is the second messenger; aDNA is not.
B cAMP is the second messenger; mRNA is not.
C cAMP is the second messenger; dGMP is not.
D Correct. cAMP transmits informationto the intracellular organelles when
activated by surface receptors on the plasma membrane.
DIF: Recall REF: p. 3 OBJ: 3
4. Whichcellular component facilitates protein synthesis?
a. Ribosomes
b. Lysosomes
c. Mitochondria
d. PlasmalemmaANS: A
Feedback
A Correct. Ribosomes synthesize protein.
B Lysosomes facilitate the breakdownof intracellular and extracellular substances.
C Mitochondria generate energy.
D The plasmalemma provides a protective barrier and regulates the transport of
substances to and from the cell.
5. Which organelle produces microtubules?
a. Nucleus
b. Centriole
c. Golgi apparatus
d. Endoplasmic reticulum ANS: B
Feedback
A Centrioles generate microtubules; the nucleus does not.
B Correct. Centrioles produce microtubules.
C Centrioles generate microtubules; the Golgi apparatus does not.
D Centrioles generate microtubules;theendoplasmic reticulumdoes not.
DIF: Recall REF: p. 3 OBJ: 1
6. Whichphase ofthe cell cycle is characterized as the initial resting stage?
, Essentials OfOral Histology And Embryology6thedition Chiego 4
a. S phase
b. G1 phase
c. G2 phase
d. Prophase ANS: B
Feedback
A The S phase is characterized as the stage in which DNAsynthesis is complete.
B Correct. The G1 phase is the initial resting stage.
C The G2 phase is characterized bypost-DNA duplication.
D Prophase is characterized byfour specificstructuralchanges.
DIF: Recall REF: p. 4 OBJ: 1
7. Posttranslational modifications to proteins produced bythe rough endoplasmic reticulum are
accomplishedby .
a. mitochondria
b. Golgi apparatus
c. messengerRNA
d. smooth endoplasmic reticulum ANS: B
Feedback
A TheGolgi apparatus is responsible for posttranslationalalterations; mitochondria are
not.
B Correct. The Golgi apparatus makes alterations to proteins produced bythe
rough endoplasmic reticulum.
C TheGolgi apparatus is responsible for posttranslationalalterations; mRNAis not.
D The Golgi apparatus is responsible for posttranslationalalterations; the smooth
endoplasmic reticulum is not.
DIF: Recall REF: p. 2 OBJ: 1
8. The provides an idealenvironment for the implantation and growthofthe embryo.
a. ovary
b. uterine tube
c. myometrium
d. endometriumANS:D
Feedback
,Essentials OfOral Histology And Embryology6thedition Chiego 2
Chapter01: Development and Structure of Cells and Tissues Chiego: Essentials of Oral
Histology and Embryology, 6th Edition
MULTIPLE CHOICE
1. Mitochondriaproduce which chemical for intracellular energy?
a. ADP
b. ATP
c. RNA
d. DNA
ANS: B
Feedback
A Mitochondria generate energythrough ATP, not ADP, production.
B Correct. Mitochondria produce energyvia ATP.
C Mitochondria generate energythrough ATP, not RNA, production.
D Mitochondria generate energythroughATP, not DNA, production.
DIF: Recall REF: pp. 2-3 OBJ: 1
2. Eachtissue originates from mesoderm, EXCEPT one. Which is the EXCEPTION?
a. Bone
b. Liver
c. Blood
d. Muscle
ANS: B
Feedback
A Bone tissue develops from mesodermalcells.
B Correct. Liver tissue is produced byendodermal cells.
C Blood develops from mesodermal cells.
D Muscletissuedevelops frommesodermalcells.
DIF: Recall REF: p. 6 OBJ: 3
3. Whichchemical is called the second messenger?
a. aDNA
b. mRNA
c. dGMP
,Essentials OfOral Histology And Embryology6thedition Chiego 3
d. cAMP
ANS: D
Feedback
A cAMP is the second messenger; aDNA is not.
B cAMP is the second messenger; mRNA is not.
C cAMP is the second messenger; dGMP is not.
D Correct. cAMP transmits informationto the intracellular organelles when
activated by surface receptors on the plasma membrane.
DIF: Recall REF: p. 3 OBJ: 3
4. Whichcellular component facilitates protein synthesis?
a. Ribosomes
b. Lysosomes
c. Mitochondria
d. PlasmalemmaANS: A
Feedback
A Correct. Ribosomes synthesize protein.
B Lysosomes facilitate the breakdownof intracellular and extracellular substances.
C Mitochondria generate energy.
D The plasmalemma provides a protective barrier and regulates the transport of
substances to and from the cell.
5. Which organelle produces microtubules?
a. Nucleus
b. Centriole
c. Golgi apparatus
d. Endoplasmic reticulum ANS: B
Feedback
A Centrioles generate microtubules; the nucleus does not.
B Correct. Centrioles produce microtubules.
C Centrioles generate microtubules; the Golgi apparatus does not.
D Centrioles generate microtubules;theendoplasmic reticulumdoes not.
DIF: Recall REF: p. 3 OBJ: 1
6. Whichphase ofthe cell cycle is characterized as the initial resting stage?
, Essentials OfOral Histology And Embryology6thedition Chiego 4
a. S phase
b. G1 phase
c. G2 phase
d. Prophase ANS: B
Feedback
A The S phase is characterized as the stage in which DNAsynthesis is complete.
B Correct. The G1 phase is the initial resting stage.
C The G2 phase is characterized bypost-DNA duplication.
D Prophase is characterized byfour specificstructuralchanges.
DIF: Recall REF: p. 4 OBJ: 1
7. Posttranslational modifications to proteins produced bythe rough endoplasmic reticulum are
accomplishedby .
a. mitochondria
b. Golgi apparatus
c. messengerRNA
d. smooth endoplasmic reticulum ANS: B
Feedback
A TheGolgi apparatus is responsible for posttranslationalalterations; mitochondria are
not.
B Correct. The Golgi apparatus makes alterations to proteins produced bythe
rough endoplasmic reticulum.
C TheGolgi apparatus is responsible for posttranslationalalterations; mRNAis not.
D The Golgi apparatus is responsible for posttranslationalalterations; the smooth
endoplasmic reticulum is not.
DIF: Recall REF: p. 2 OBJ: 1
8. The provides an idealenvironment for the implantation and growthofthe embryo.
a. ovary
b. uterine tube
c. myometrium
d. endometriumANS:D
Feedback
