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