m
, MedMCMFile:
m
Robbins Basic Pathology 10th Edition Kymar Abbas Test Ba
M M M M M M M M
nk QUESTIONS & ANSWERS
M M M
ChapterM1.MTheMCellMasMaMUnitMofMHealthMandMDisease
1 The nucleus
M
, which is essential for function an
M M M M M M
d survival of the cell.
M M M M
A) is the site of protein synthesis M M M M M
B) contains the genetic code M M M
C) transforms cellular energy M M
D) initiates aerobic metabolismM M
2 Although energy is not made in mitochondria, they are know
M M M M M M M M M
n as the power plants of the cell because they:
M M M M M M M M M
A) contain RNA for protein synthesis. M M M M
B) utilize glycolysis for oxidative energy. M M M M
C) extract energy from organic compounds.
M M M M
D) store calcium bonds for muscle contractions.
M M M M M
3 Although the basic structure of the cell plasma membrane is f
M M M M M M M M M M
ormed by a lipid bilayer, most of the specific membrane func
M M M M M M M M M M
tions are carried out by:
M M M M
A) bound and transmembrane proteins. M M M
B) complex, long carbohydrate chains.
M M M
C) surface antigens and hormone receptors.
M M M M
D) a gating system of selective ion channels.
M M M M M M
4 To effectively relay signals, cell-to-
M M M M
cell communication utilizes chemical messenger systems th
M M M M M M
at:
A) displace surface receptor proteins. M M M
B) accumulate within cell gap junctions. M M M M
C) bind to contractile microfilaments.
M M M
D) release secretions into extracellular fluid.
M M M M
,MedMCMFile:
m
5 Aerobic metabolism, also known as oxidative metabolism
M M M M M M
, provides energy by:
M M M
A) removing the phosphate bonds from ATP. M M M M M
B) combining hydrogen and oxygen to for M M M M M
m water.
M
C) activating pyruvate stored in the cytoplasm.
M M M M M
D) breaking down glucose to form lactic acid.
M M M M M M
6 Exocytosis, the reverse of endocytosis, is important in
M M M M M M M
M into the extracellular fluid.
M M M
A) Engulfing and ingesting fluid and proteins fo M M M M M M
r transport M
B) Killing, degrading, and dissolving harmfu M M M M
l microorganisms M
C) Removing cellular debris and releasin M M M M
g synthesized substances
M M
D) Destruction of particles by lysosomal enzyme M M M M M
s for secretion
M M
7 The process responsible for generating and conductin
M M M M M M
g membrane potentials is:
M M M
A) diffusion of current-carrying ions. M M M
B) millivoltage of electrical potential. M M M
C) polarization of charged particles. M M M
D) ion channel neurotransmission.
M M
8 Epithelial tissues are classified according to the shape of th
M M M M M M M M M
e cells and the number of layers. Which of the following is
M M M M M M M M M M M M
a correctly matched description and type of epithelial tissue
M M M M M M M M
?
A) Simple epithelium: cells in contact with i M M M M M M
ntercellular matrix; some do not extend to M M M M M M M
surface
, MedMCMFile:
m
B) Stratified epithelium: single layer of cells; al
M M M M M M
l cells rest on basement membrane
M M M M M
C) Glandular epithelium: arise from surface
M M M M M
epithelia and underlying connective tissu
M M M M
e
D) Pseudostratified epithelium: multiple layers o M M M M
f cells; deepest layer rests on basement memb
M M M M M M M
rane
9 Connective tissue contains fibroblasts that are responsible for:
M M M M M M M
A) providing a fibrous framework for capillaries.
M M M M M
B) synthesis of collagen, elastin, and reticula
M M M M M
r fibers.
M
C) forming tendons and the fascia that cover
M M M M M M
s muscles.
M
D) filling spaces between tissues to keep organs i
M M M M M M M
n place.
M
10 Although all muscle tissue cells have some similarities, sm
M M M M M M M M
ooth muscle (also known as involuntary muscle) differs by:
M M M M M M M M
A) having dense bodies attached to acti
M M M M M
n filaments.
M
B) containing sarcomeres between Z lines and
M M M M M M
M bands.
M
C) having rapid contractions and abundant cross
M M M M M
- striations.
M
D) contracting in response to increase
M M M M
d intracellular calcium.
M M
11 Which of the following aspects of the function of the nucleu
M M M M M M M M M M
s is performed by ribosomal RNA (rRNA)?
M M M M M M
A) Copying and carrying DNA instructions fo
M M M M M
r protein synthesis
M M