Chapter 01: Development and Structure of Cells and Tissues Chiego: Essentials of Oral
Histology and Embryology, 5th Edition
MULTIPLE CHOICE
1.
... [Show More] Mitochondria produce which chemical for intracellular energy?
a. ADP
b. ATP
c. RNA
d. DNA
ANS: 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
ANS: 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
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 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
ANS: 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
ESSENTIALS OF ORAL HISTOLOGY AND EMBRYOLOGY5 TH EDITION CHIEGO TEST BANK
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; 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
ANS: 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
ANS: 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 [Show Less]