ESSENTIALS0OF0ORAL0HISTOLOGY0AND0EMBRYOLOGY05THEDITIO
N0CHIEGO0TEST0BANK0A+
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, Oral0Histology0and0Embryology05th0edition0Chiego 2
Chapter001:0Development0and0Structure0of0Cells0and0Tissues0Chiego:0Essentials0of0Oral0
Histology0and0Embryology,05th0Edition
MULTIPLE0CHOICE
1. Mitochondria0produce0which0chemical0for0intracellular0energy?
a. ADP
b. ATP
c. RNA
d. DNA
0ANS:0B
Feedback
A Mitochondria0generate0energy0through0ATP,0not0ADP,0production.
B Correct.0Mitochondria0produce0energy0via0ATP.
C Mitochondria0generate0energy0through0ATP,0not0RNA,0production.
D Mitochondria0generate0energy0through0ATP,0not0DNA,0production.
0DIF: Recall0 REF:0 pp.02-30OBJ:01
2. Each0tissue0originates0from0mesoderm,0EXCEPT0one.0Which0is0the0EXCEPTION?
a. Bone
b. Liver
c. Blood
d. Muscle
0ANS:0B
Feedback
A Bone0tissue0develops0from0mesodermal0cells.
B Correct.0Liver0tissue0is0produced0by0endodermal0cells.
C Blood0develops0from0mesodermal0cells.
D Muscle0tissue0develops0from0mesodermal0cells.
0DIF: Recall0 REF:0 p.06 OBJ:03
3. Which0chemical0is0called0the0second0messenger?
a. aDNA
b. mRNA
c. dGMP
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, Oral0Histology0and0Embryology05th0edition0Chiego 3
d. cAMP
0ANS:0D
Feedback
A cAMP0is0 the0 second0messenger;0 aDNA0 is0 not.
B cAMP0 is0 the0 second0messenger;0 mRNA0 is0 not.
C cAMP0is0the0second0messenger;0dGMP0is0not.
D0 Correct.0 cAMP0 transmits0 information0 to0 the0 intracellular0 organelles0 when0ac
tivated0by0surface0receptors0on0the0plasma0membrane.
DIF: Recall0 REF:0 0 p.03 OBJ:03
4. Which0cellular0component0facilitates0protein0synthesis?
a. Ribosomes
b. Lysosomes
c. Mitochondria
d. Plasmalemma0ANS:0A
Feedback
A Correct.0Ribosomes0synthesize0protein.
B Lysosomes0facilitate0the0breakdown0of0intracellular0and0extracellular0substances.
C Mitochondria0generate0energy.
D The0plasmalemma0provides0a0protective0barrier0and0regulates0the0transport0of
0substances0to0and0from0the0cell.
5. Which0organelle0produces0microtubules?
a. Nucleus
b. Centriole
c. Golgi0apparatus
d. Endoplasmic0reticulum0ANS:0B
Feedback
A Centrioles0generate0microtubules;0the0nucleus0does0not.
B Correct.0Centrioles0produce0microtubules.
C Centrioles0generate0microtubules;0the0Golgi0apparatus0does0not.
D Centrioles0generate0microtubules;0the0endoplasmic0reticulum0does0not.
0DIF: Recall0 REF:0 p.03 OBJ:01
6. Which0phase0of0the0cell0cycle0is0characterized0as0the0initial0resting0stage?
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, Oral0Histology0and0Embryology05th0edition0Chiego 4
a. S0phase
b. G10phase
c. G20phase
d. Prophase0ANS:0B
Feedback
A The0S0phase0is0characterized0as0the0stage0in0which0DNA0synthesis0is0complete.
B Correct.0The0G10phase0is0the0initial0resting0stage.
C The0G20phase0is0characterized0by0post-DNA0duplication.
D Prophase0is0characterized0by0four0specific0structural0changes.
0DIF: Recall0 REF:0 p.04 OBJ:01
7. Posttranslational0modifications0to0proteins0produced0by0the0rough0endoplasmic0reticulum
0are
accomplished0by .
a. mitochondria
b. Golgi0apparatus
c. messenger0RNA
d. smooth0endoplasmic0reticulum0ANS:0B
Feedback
A The0Golgi0apparatus0is0responsible0for0posttranslational0alterations;0mitochondria
0are0not.
B Correct.0The0Golgi0apparatus0makes0alterations0to0proteins0produced0by0the
0rough0endoplasmic0reticulum.
C The0Golgi0apparatus0is0responsible0for0posttranslational0alterations;0mRNA0is
0not.
D The0Golgi0apparatus0is0responsible0for0posttranslational0alterations;0the0smooth
0endoplasmic0reticulum0is0not.
DIF: Recall0 REF:0 0 p.02 OBJ:01
8. The provides0an0ideal0environment0for0the0implantation0and0growth0of0the0embryo.
a. ovary
b. uterine0tube
c. myometrium
d. endometrium0ANS:0D
0 Feedback
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