Test Bank Robbins Basic Pathology 10th 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
...
Test Bank Robbins Basic Pathology 10th 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 fromorganic compounds.
D) store calciumbonds 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 fromATP.
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 crossstriations.
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
B) Carrying amino acids to the site of protein
synthesis
C) Providing the site where protein synthesis
occurs
D) Regulating and controlling protein synthesis
12 Breakdown and removal of foreign substances and worn-out cell
parts are performed by which of the following organelles?
A) Lysosomes
B) Golgi apparatus
C) Ribosomes
D) Endoplasmic reticulum(ER)
13 Impairment in the function of peroxisomes would result in:
A) inadequate sites for protein synthesis.
B) an inability to transport cellular products
across the cell membrane.
C) insufficient energy production within a cell.
D) accumulation of free radicals in the cytoplasm.
14 After several months of trying to conceive, a couple is undergoing
fertility testing. Semen analysis indicates that the mans sperm have
decreased motility, a finding that is thought to underlie the couples
inability to become pregnant. Which of the following cellular
components may be defective within the mans sperm?
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
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