KIN 223 Exam 2 review questions with accurate detailed
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answers
which is not considered part of the cytoplasm?
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-cytosol
-nucleus
-inclusions
-organelles - ✔✔nucleus || ||
The shape of skeletal muscle cells is described as:
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-irregular
-spherical
-cylindrical
-columnar
-biconcave - ✔✔cylindrical || ||
Proteins that are embedded within, and extend across, the phospholipid bilayer are called _____
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proteins - ✔✔integral || ||
The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic
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regions of the bilayer is: - ✔✔cholesterol
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Channel-mediated diffusion is a subtype of: - ✔✔facilitated diffusion || || || || || || || ||
During osmosis, water moves toward the solution with the ______ solute concentration. -
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✔✔greater
, Which is a passive transport process?
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-osmosis
-phagocytosis
-receptor meditated endocytosis || ||
-ion pump ||
-pinocytosis - ✔✔osmosis || ||
Cell shrinking, also known as crenation, occurs when a cells is placed into a(n) _______ solution.
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- ✔✔hypertonic
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To maintain a resting membrane potential, the sodium-potassium pump:
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-actively transports 3 sodium ions out of the cells and 2 potassium ions into the cell.
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-passively transports 3 potassium ions out of the cell and 2 sodium ions into the cell.
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-actively transports 2 potassium ions out of the cell and 2 sodium ions into the cell.
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-passively transports 3 sodium ions out of the cell and 2 potassium ions into the cell. - ✔✔-
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actively transports 3 sodium ions out of the cells and 2 potassium ions into the cell.
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T or F:
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the sodium-potassium pump moves both potassium and sodium down their concentration
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gradients, from higher to lower concentration. - ✔✔False || || || || || || ||
These junctions hold adjacent cells together and provide resistance to mechanical stress. -
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✔✔desmosomes
The folds of the internal membrane of a mitochondrion are called: - ✔✔cristae
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The term "flagellum" is appropriate for the structure it represents because it means: - ✔✔a whip
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answers
which is not considered part of the cytoplasm?
|| || || || || || ||
-cytosol
-nucleus
-inclusions
-organelles - ✔✔nucleus || ||
The shape of skeletal muscle cells is described as:
|| || || || || || || || ||
-irregular
-spherical
-cylindrical
-columnar
-biconcave - ✔✔cylindrical || ||
Proteins that are embedded within, and extend across, the phospholipid bilayer are called _____
|| || || || || || || || || || || || || ||
proteins - ✔✔integral || ||
The lipid that stabilizes the membrane at extreme temperatures and is found in the hydrophobic
|| || || || || || || || || || || || || || ||
regions of the bilayer is: - ✔✔cholesterol
|| || || || || ||
Channel-mediated diffusion is a subtype of: - ✔✔facilitated diffusion || || || || || || || ||
During osmosis, water moves toward the solution with the ______ solute concentration. -
|| || || || || || || || || || || || ||
✔✔greater
, Which is a passive transport process?
|| || || || ||
-osmosis
-phagocytosis
-receptor meditated endocytosis || ||
-ion pump ||
-pinocytosis - ✔✔osmosis || ||
Cell shrinking, also known as crenation, occurs when a cells is placed into a(n) _______ solution.
|| || || || || || || || || || || || || || || ||
- ✔✔hypertonic
||
To maintain a resting membrane potential, the sodium-potassium pump:
|| || || || || || || || ||
-actively transports 3 sodium ions out of the cells and 2 potassium ions into the cell.
|| || || || || || || || || || || || || || || ||
-passively transports 3 potassium ions out of the cell and 2 sodium ions into the cell.
|| || || || || || || || || || || || || || ||
-actively transports 2 potassium ions out of the cell and 2 sodium ions into the cell.
|| || || || || || || || || || || || || || ||
-passively transports 3 sodium ions out of the cell and 2 potassium ions into the cell. - ✔✔-
|| || || || || || || || || || || || || || || || ||
actively transports 3 sodium ions out of the cells and 2 potassium ions into the cell.
|| || || || || || || || || || || || || || ||
T or F:
|| ||
the sodium-potassium pump moves both potassium and sodium down their concentration
|| || || || || || || || || || ||
gradients, from higher to lower concentration. - ✔✔False || || || || || || ||
These junctions hold adjacent cells together and provide resistance to mechanical stress. -
|| || || || || || || || || || || || ||
✔✔desmosomes
The folds of the internal membrane of a mitochondrion are called: - ✔✔cristae
|| || || || || || || || || || || ||
The term "flagellum" is appropriate for the structure it represents because it means: - ✔✔a whip
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