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NURS 6501-Advanced Pathophysiology Quiz 1 Questions With 100% Correct Answers.
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NURS 6501-Advanced Pathophysiology Quiz 1 Questions With 100% Correct Answers. How are cells specialized? through the process of differentiation or maturation What are the eight specialized cellular functions? movement, conductivity, metabolic absorption, secretion, excretion, respiration, re...

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  • 4 december 2023
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NURS 6501-Advanced Pathophysiology Quiz 1 Questions
With 100% Correct Answers.
How are cells specialized?
through the process of differentiation or maturation
What are the eight specialized cellular functions?
movement, conductivity, metabolic absorption, secretion, excretion, respiration,
reproduction, and communication
What are the three general components of an eukaryotic cell?
the plasma membrane, the cytoplasm, and the intracellular organelles.
What causes the release of lysosomal enzemes?
Cellular injury causing cellular self-digestion
What is the location and function of the nucleus?
the largest membrane-bound organelle and is found usually in the cell's center. The
chief functions of the nucleus are cell division and control of genetic information.
What is Cytoplasm?
an aqueous solution (cytosol) that fills the space between the nucleus and the plasma
membrane.
What is the endoplasmic reticulum and what does it specialize in?
a network of tubular channels (cisternae) that extend throughout the outer nuclear
membrane. It specializes in the synthesis and transport of protein and lipid components
of most of the organelles
What is the Golgi complex and what does it do?
a network of smooth membranes and vesicles located near the nucleus. The Golgi
complex is responsible for processing and packaging proteins into secretory vesicles
What are lysosomes and what do they do?
saclike structures that originate from the Golgi complex and contain digestive enzymes.
These enzymes are responsible for digesting most cellular substances to their basic
form, such as amino acids, fatty acids, and carbohydrates
What are peroxisomes?
involved in the production and breakdown of hydrogen peroxide
Importance of proteins in disease
The major workhorses of the cell, if misfolded they can cause diseases
What are mitochondria responsible for?
. Mitochondria contain the metabolic machinery necessary for cellular energy
metabolism (Makes ATP).
What is the cytoskeleton?
the "bone and muscle" of the cell. The internal skeleton is composed of a network of
protein filaments, including microtubules and actin filaments (microfilaments).
What is the plasma membrane?
encloses the cell and, by controlling the movement of substances across it, exerts a
powerful influence on metabolic pathways
What is signal transduction?
The transfer of molecular signals from the exterior to the interior of a cell. If not done
apoptosis occurs

, What is protein regulation and what is it composed of?
protein homeostasis and is defined by the proteostasis network. This network is
composed of ribosomes (makers), chaperones (helpers), and protein breakdown or
proteolytic systems. Malfunction of these systems is associated with disease.
What do protein receptors do?
on the plasma membrane, enable the cell to interact with other cells and with
extracellular substances
What means accomplish cell-to-cell adhesions?
(1) the extracellular membrane, (2) cell adhesion molecules in the cell's plasma
membrane, and (3) specialized cell junctions.
What makes up the extracellular matrix and what does it do?
(1) fibrous structural proteins (collagen and elastin), (2) adhesive glycoproteins, and (3)
proteoglycans and hyaluronic acid. The matrix helps regulate cell growth, movement,
and differentiation.
How do cells communicate?
(1) they form protein channels (gap junctions); (2) they display receptors that affect
intracellular processes or other cells in direct physical contact; and (3) they use receptor
proteins inside the target cell.
How is intercellular signaling done?
contact-dependent, paracrine, hormonal, neurohormonal, and neurotransmitter.
What is ATP?
Adenosine Triphosphate - ENERGY - is required for active transport.
What is anabolism?
energy-using process of metabolism
What is catabolism?
the energy-releasing process of metabolism
What is passive transport?
The movement of materials across the cell membrane without using cellular energy,
water and small electrically uncharged molecules, done through osmosis
What is oxidative phosphorylation?
occurs in the mitochondria and is the mechanism by which the energy produced from
carbohydrates, fats, and proteins is transferred to ATP.
What is endocytosis and exocytosis?
Endo= into the cell (engulf). Exo= out of the cell (excrete).
What is active transport?
requires the cell to expend energy (by means of ATP) to move larger molecules and
molecular complexes
What is pinocytosis?
the ingestion of liquid into a cell by the budding of small vesicles from the cell
membrane. (drinking)
How is endocytosis done?
when the substance to be transported is engulfed by a segment of the plasma
membrane, forming a vesicle that moves into the cell.
What is phagocytosis?
the ingestion of bacteria or other material by phagocytes and amoeboid protozoans.
(eating)

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