Test Bank:
Essentials of
Oral
Histology
and
Embryology,
6th Edition
by Chiego.
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,TESTBA NK@_Essentials of oral histology and embry ology 6th edition ch iego_...
Chapter 01: Development and Structure of Cells and Tissues
MULTIPLE CHOICE
1. Mitochondria produce which chemical for intracellular energy?
a. ADP
b. ATP
c. RNA
d. DNA
CORRECT ANSWER: B
Feedback
A Mitochondria generate energy through ATP, not ADP, production.
B Correct. Mitochondria produce energy via ATP.
C Mitochondria generate energy through ATP, not RNA, production.
D Mitochondria generate energy through ATP, not DNA, production. DIF: Recall REF:
pp. 2-3 OBJ: 1
2. Each tissue originates from mesoderm, EXCEPT one. Which is the EXCEPTION?
a. Bone
b. Liver
c. Blood
d. Muscle
CORRECT ANSWER: B
Feedback
A Bone tissue develops from mesodermal cells.
B Correct. Liver tissue is produced by endodermal cells.
C Blood develops from mesodermal cells.
D Muscle tissue develops from mesodermal cells. DIF: Recall
REF: p. 6 OBJ: 3
3. Which chemical is called the second messenger?
a. aDNA
b. mRNA
c. dGMP
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,d. cAMP
CORRECT ANSWER: B
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.
D . cAMP transmits information to the intracellular organelles when activated by surface receptors on the
plasma membrane.
DIF: Recall REF: p. 3 OBJ: 3
4. Which cellular component facilitates protein synthesis?
a. Ribosomes
b. Lysosomes
c. Mitochondria
d. Plasmalemma
CORRECT ANSWER: A
Feedback
A Correct. Ribosomes synthesize protein.
B Lysosomes facilitate the breakdown of 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
CORRECT ANSWER: 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; the endoplasmic reticulum does not. DIF: Recall REF: p. 3
OBJ: 1
6. Which phase of the cell cycle is characterized as the initial resting stage?
a. S phase
b. G1 phase
c. G2 phase
, d. Prophase
CORRECT ANSWER: B
Feedback
A The S phase is characterized as the stage in which DNA synthesis is complete.
B Correct. The G1 phase is the initial resting stage.
C The G2 phase is characterized by post-DNA duplication.
D Prophase is characterized by four specific structural changes. DIF:
Recall REF: p. 4 OBJ: 1
7. Posttranslational modifications to proteins produced by the rough endoplasmic reticulum are
accomplished by .
a. mitochondria
b. Golgi apparatus
c. messenger RNA
d. smooth endoplasmic reticulum
CORRECT ANSWER: B
Feedback
A The Golgi apparatus is responsible for posttranslational alterations; mitochondria are not.
B Correct. The Golgi apparatus makes alterations to proteins produced by the rough endoplasmic
reticulum.
C The Golgi apparatus is responsible for posttranslational alterations; mRNA is not.
D The Golgi apparatus is responsible for posttranslational alterations; the smooth endoplasmic reticulum is
not.
DIF: Recall REF: p. 2 OBJ: 1
8. The provides an ideal environment for the implantation and growth of the embryo.
a. ovary
b. uterine tube
c. myometrium
d. endometrium
CORRECT ANSWER: D
Feedback
A The ovary is the female reproductive organ, in which the ova or eggs are produced.
B The uterine tube conducts the egg from the ovary to the uterus.
C The myometrium is the smooth muscle that lines the uterus.
D Correct. The endometrium provides the ovum with the nourishment necessary for implantation and
growth.
9. Intercalated disks are present in which type of muscle?
a. Cardiac
b. Smooth