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Multiple Choice
What are the three types of protein structures that contribute to the cytoskeleton?
A
Microtubules, microfilaments, and intermediate filaments
B
Actin filaments, collagen fibers, and elastin fibers
C
Collagen fibers, microtubules, and actin filaments
D
Keratin fibers, myosin filaments, and tubulin strands
Verified step by step guidance
1
Begin by understanding the cytoskeleton, which is a network of protein fibers in the cytoplasm of cells that provides structural support, shape, and facilitates movement.
Identify the three main types of protein structures that make up the cytoskeleton: microtubules, microfilaments, and intermediate filaments.
Microtubules are cylindrical structures made of tubulin proteins, providing support and shape to the cell, and are involved in intracellular transport and cell division.
Microfilaments, also known as actin filaments, are thin strands composed of actin proteins, playing a role in cell movement and muscle contraction.
Intermediate filaments are fibrous proteins that provide mechanical support for the cell, helping to maintain its shape and integrity.