Multiple Choice
What is the name of the initiation process that beings to assemble the subunits of the cytoskeleton?
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15. Cytoskeleton and Cell Movement
Overview of the Cytoskeleton
Multiple Choice
In eukaryotic cells, cell shape is primarily reinforced by which structure?
A
Ribosomes bound to the rough endoplasmic reticulum
B
The nuclear envelope and nuclear lamina
C
The Golgi apparatus and its transport vesicles
D
The cytoskeleton (microfilaments, intermediate filaments, and microtubules)
Verified step by step guidance1
Identify the main cellular structures involved in maintaining cell shape in eukaryotic cells.
Understand that ribosomes bound to the rough endoplasmic reticulum are primarily involved in protein synthesis, not shape reinforcement.
Recognize that the nuclear envelope and nuclear lamina provide structural support to the nucleus but do not primarily maintain overall cell shape.
Note that the Golgi apparatus and its transport vesicles are involved in modifying, sorting, and transporting proteins and lipids, not in maintaining cell shape.
Conclude that the cytoskeleton, composed of microfilaments, intermediate filaments, and microtubules, is the primary structure responsible for reinforcing and maintaining the shape of eukaryotic cells.
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