Test Bank For Essentials Of Oral Histology and Embryology: A Clinical Approach 6th Edition Author:Daniel J. Chiego Jr |9780323497251| All Chapters| LATEST VERSION

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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 g1




1. Mitochondria produce which chemical for intracellular energy?
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a. ADP
b. ATP
c. RNA
d. DNA
ANS:
g1 B
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Feedback
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 energythrough ATP, not DNA,
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production. DIF:
g1 g1 Recall REF: g 1 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
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cells. DIF:
g1 g1 Recall REF: g 1 p. 6 g1




OBJ: 3 g1




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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Feedback
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
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when activated by surface receptors on the plasma membrane.
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DIF: Recall g 1 REF: p. 3 g1 OBJ: 3 g1




4. Which cellular component facilitates protein synthesis?
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a. Ribosomes
b. Lysosomes
c. Mitochondria
d. Plasmalemma ANS: A g1 g1




Feedback
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. g1 g1


D The plasmalemma provides a protective barrier and regulates the transport
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of
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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 g1 g1 g1




Feedback
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
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not. DIF:
g1 g1 Recall REF: g 1 p. 3 g1 OBJ: 1 g1




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 phase g1



c. G2 phase g1



d. Prophase ANS: B g1 g1




Feedback
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
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changes. DIF:
g1 g1 Recall REF: g 1 p. 4 g1 OBJ: 1 g1




7. Posttranslational modifications to proteins produced bythe rough endoplasmicg1 g1 g1 g1 g1 g1 g1


reticulum are
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accomplished by . g1


a. mitochondria
b. Golgi apparatus g1


c. messenger RNA g1



d. smooth endoplasmic reticulum ANS: B
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Feedback
A The Golgi apparatus is responsible for posttranslational alterations;
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mitochondria are not.
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B Correct. The Golgi apparatus makes alterations to proteins produced by
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the rough endoplasmic reticulum.
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C The Golgi apparatus is responsible for posttranslational alterations; mRNA
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is not.
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D The Golgi apparatus is responsible for posttranslational alterations; the
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smooth endoplasmic reticulum is not.
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DIF: Recall g 1 REF: p. 2 g1 OBJ: 1 g1




8. The provides an ideal environment for the implantation and growth of the embryo.
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a. ovary
b. uterine tube g1


c. myometrium
d. endometrium ANS: D g1 g1




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