Test Bank for Essentials of Oral Histology and Embryology: A Clinical Approach 6th Edition by Daniel J. Chiego Jr. ISBN-9780323876643 Graded A+ Latest Verified Edition

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Chapter 01: Development and Structure of Cells and Tissues Chiego: Essentials of Oral
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Histology and Embryology, 5th Edition
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MULTIPLE CHOICE n




1. Mitochondria produce which chemical for intracellular energy?
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a. ADP
b. ATP
c. RNA
d. DNA
ANS: B
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A Mitochondria generate energy through ATP, not ADP, production.
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B Correct. Mitochondria produce energy via ATP.
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C Mitochondria generate energy through ATP, not RNA, production.
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D Mitochondria generate energy through ATP, not DNA, production.
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DIF:
n Recall REF: pp. 2-3 OBJ: 1
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2. Each tissue originates from mesoderm, EXCEPT one. Which is the EXCEPTION?
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a. Bone
b. Liver
c. Blood
d. Muscle
ANS: B
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A Bone tissue develops from mesodermal cells.
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B Correct. Liver tissue is produced by endodermal cells.
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C Blood develops from mesodermal cells.
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D Muscle tissue develops from mesodermal cells.
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DIF:
n Recall REF: p. 6 n n n OBJ: 3 n




3. Which chemical is called the second messenger?
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a. aDNA
b. mRNA
c. dGMP

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d. cAMP
ANS: D
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A cAMP is the second messenger; aDNA is not.
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B cAMP is the second messenger; mRNA is not.
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C cAMP is the second messenger; dGMP is not.
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D Correct. cAMP transmits information to the intracellular organelles when
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activated by surface receptors on the plasma membrane.
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DIF: Recall REF: n n n p. 3 n OBJ: 3 n




4. Which cellular component facilitates protein synthesis?
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a. Ribosomes
b. Lysosomes
c. Mitochondria
d. Plasmalemma ANS: A n n




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A Correct. Ribosomes synthesize protein.
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B Lysosomes facilitate the breakdown of intracellular and extracellular substances.
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C Mitochondria generate energy. n n


D The plasmalemma provides a protective barrier and regulates the transport of
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substances to and from the cell.
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5. Which organelle produces microtubules?
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a. Nucleus
b. Centriole
c. Golgi apparatus
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d. Endoplasmic reticulum ANS: B n n n




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A Centrioles generate microtubules; the nucleus does not.
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B Correct. Centrioles produce microtubules.
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C Centrioles generate microtubules; the Golgi apparatus does not.
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D Centrioles generate microtubules; the endoplasmic reticulum does not.
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DIF:
n Recall REF: p. 3 n n n OBJ: 1 n




6. Which phase of the cell cycle is characterized as the initial resting stage?
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a. S phase
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b. G1 phasen



c. G2 phasen


d. Prophase ANS: B n n




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A The S phase is characterized as the stage in which DNA synthesis is complete.
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B Correct. The G1 phase is the initial resting stage.
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C The G2 phase is characterized by post-DNA duplication.
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D Prophase is characterized by four specific structural changes.
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DIF:
n Recall REF: p. 4 n n n OBJ: 1 n




7. Posttranslational modifications to proteins produced by the rough endoplasmic reticulumn n n n n n n n n


are
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accomplished by . n


a. mitochondria
b. Golgi apparatus n


c. messenger RNA n


d. smooth endoplasmic reticulum ANS: Bn n n n




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A The Golgi apparatus is responsible for posttranslational alterations; mitochondria
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are not.
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B Correct. The Golgi apparatus makes alterations to proteins produced by the
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rough endoplasmic reticulum.
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C The Golgi apparatus is responsible for posttranslational alterations; mRNA is
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not.
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D The Golgi apparatus is responsible for posttranslational alterations; the smooth
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endoplasmic reticulum is not.
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DIF: Recall REF: n n n p. 2 n OBJ: 1 n




8. The provides an ideal environment for the implantation and growth of the embryo.
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a. ovary
b. uterine tube n



c. myometrium
d. endometrium ANS: D n n




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