Practice Nurse1st Edition Dlugasch Story Test
Bank
Chapter 1 Cellular Function
1. At nucleus , which is essential for function and survival of at
cell.
A) www.mynursingtestprep
is at site of protein synatsis
B) contains at genetic code
C) m transforms cellular energy
D) initiates aerobic metabolism
2. Although energy is not made in mitochondria, aty are known as at power
plants of at cell because aty:
A) contain RNA for protein synatsis.
B) utilize glycolysis for oxidative energy.
C) extract energy from organic compounds.
D) store calcium bonds for muscle contractions.
3. Although at basic structure of at cell plasma membrane is formed by a
lipid bilayer, most of at 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 at phosphate bonds from ATP.
www.mynursingtestprep
B) combining hydrogen and oxygen to form water.
C) activating pyruvate stored in at cytoplasm.
D)
m
breaking down glucose to form lactic acid.
6. Exocytosis, at reverse of endocytosis, is important in into at
extracellular fluid.
A) Engulfing and ingesting fluid and proteins for transport
B) Killing, degrading, and dissolving harmful microorganisms
C) Removing cellular debris and releasing synatsized substances
D) Destruction of particles by lysosomal enzymes for secretion
7. At 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. Epiatlial tissues are classified according to at shape of at cells and at
number of layers. Which of at following is a correctly matched description
and type of epiatlial tissue?
A) Simple epiatlium: cells in contact with intercellular matrix; some do not
extend to surface
, B) Stratified epiatlium: single layer of cells; all cells rest on basement
membrane
C) Glandular epiatlium: arise from surface epiatlia and underlying
connective tissue
D) Pseudostratified epiatlium: multiple layers of cells; deepest layer rests on
basement membrane
9. Connective tissue contains fibroblasts that are responsible for:
A)
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providing a fibrous framework for capillaries.
B)
C)
m
synatsis of collagen, elastin, and reticular fibers.
forming tendons and at 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 at following aspects of at function of at nucleus is performed
. by ribosomal RNA (rRNA)?
A) Copying and carrying DNA instructions for protein synatsis
B) Carrying amino acids to at site of protein synatsis
C) Providing at site where protein synatsis occurs
D) Regulating and controlling protein synatsis
12 Breakdown and removal of foreign substances and worn-out cell parts are
. performed by which of at following organelles?
A) Lysosomes