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Nurs 611 Chapter 1&2
study guide questions
with complete verified
solutions (PASSED)
Week 1 Chapter 1
1. Question # 13: What is the Difference between a lysosome and a
peroxisome?
• Lysosomes contain enzymes for digesting most cellular
substances, such as amino acids, fatty acids, and carbohydrates,
to their basic forms.
• Lysosomes maintain cellular health because of efficient removal
of toxic cellular components, removal of useless organelles,
termination of signal transduction, and maintenance of
metabolic homeostasis.
• Aging can lead to progressive loss of lysosomal efficiency and
decline of the regenerative capacity of organs and tissues.
• Peroxisomes contain several oxidative enzymes that detoxify
compounds and fatty acids.
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• Peroxisomes also have an important role in the synthesis of
specialized phospholipids that are necessary for nerve
myelination.
2. Question # 23: Write the letters here in the correct order of the
events that occur during a neuronal action potential: (C,A,E,B,D)
• The transporter protein is ATPase, which requires Na+, K+, and
magnesium (Mg+ +) ions.
• Approximately 60% to 70% of the ATP synthesized by cells,
especially muscle and nerve cells, is used to maintain the Na+-
K+–transport system.
• For every ATP molecule hydrolyzed, three molecules of Na+
are transported out of the cell, whereas only two molecules of
K+ move into the cell.
• The conformational change lowers the affinity for Na+ and K+
to the ATPase transporter, resulting in the release of the cations
after transport.
• The active transport system for Na+ and K+ is found in
virtually all mammalian cells.
3. Question # 40: If the ECF becomes hypotonic, in which direction
will the water move? (A. into the cell)
• A hypotonic solution has a lower concentration and is thus
more diluted than body fluids.
• Hypotonic solutions is pulled into the cells by osmosis, causing
the cells to swell or burst.
A hypertonic solution has a higher concentration than
body fluids.
• Cells shrink in a hypertonic solution because water is being
pulled out of the cells.
FOR MORE EXAMS
EMAIL:
EMAIL:
1
Nurs 611 Chapter 1&2
study guide questions
with complete verified
solutions (PASSED)
Week 1 Chapter 1
1. Question # 13: What is the Difference between a lysosome and a
peroxisome?
• Lysosomes contain enzymes for digesting most cellular
substances, such as amino acids, fatty acids, and carbohydrates,
to their basic forms.
• Lysosomes maintain cellular health because of efficient removal
of toxic cellular components, removal of useless organelles,
termination of signal transduction, and maintenance of
metabolic homeostasis.
• Aging can lead to progressive loss of lysosomal efficiency and
decline of the regenerative capacity of organs and tissues.
• Peroxisomes contain several oxidative enzymes that detoxify
compounds and fatty acids.
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EMAIL:
, FOR MORE EXAMS
EMAIL:
• Peroxisomes also have an important role in the synthesis of
specialized phospholipids that are necessary for nerve
myelination.
2. Question # 23: Write the letters here in the correct order of the
events that occur during a neuronal action potential: (C,A,E,B,D)
• The transporter protein is ATPase, which requires Na+, K+, and
magnesium (Mg+ +) ions.
• Approximately 60% to 70% of the ATP synthesized by cells,
especially muscle and nerve cells, is used to maintain the Na+-
K+–transport system.
• For every ATP molecule hydrolyzed, three molecules of Na+
are transported out of the cell, whereas only two molecules of
K+ move into the cell.
• The conformational change lowers the affinity for Na+ and K+
to the ATPase transporter, resulting in the release of the cations
after transport.
• The active transport system for Na+ and K+ is found in
virtually all mammalian cells.
3. Question # 40: If the ECF becomes hypotonic, in which direction
will the water move? (A. into the cell)
• A hypotonic solution has a lower concentration and is thus
more diluted than body fluids.
• Hypotonic solutions is pulled into the cells by osmosis, causing
the cells to swell or burst.
A hypertonic solution has a higher concentration than
body fluids.
• Cells shrink in a hypertonic solution because water is being
pulled out of the cells.
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EMAIL:
