Citoesqueleto Flashcards
(25 cards)
What is the primary function of the cytoskeleton?
The primary function of the cytoskeleton is to maintain cell shape, provide mechanical support, and facilitate cell movement.
True or False: The cytoskeleton is composed of three main types of filaments.
True
Name the three main components of the cytoskeleton.
Microfilaments, intermediate filaments, and microtubules.
Fill in the blank: Microfilaments are primarily made of ______.
actin
Which cytoskeletal component is involved in muscle contraction?
Microfilaments
What is the role of intermediate filaments?
Intermediate filaments provide structural support and stability to the cell.
True or False: Microtubules are involved in intracellular transport.
True
Which protein is primarily associated with microtubules?
Tubulin
Fill in the blank: The cytoskeleton plays a crucial role in ______ during cell division.
chromosome movement
What structure do microtubules form during cell division?
The mitotic spindle
What is the function of motor proteins in relation to the cytoskeleton?
Motor proteins transport cellular cargo along the cytoskeletal filaments.
Name two types of motor proteins associated with microtubules.
Kinesin and dynein
True or False: The cytoskeleton is static and does not change.
False
What is the role of the cytoskeleton in cell signaling?
The cytoskeleton helps transmit signals from the cell membrane to the interior of the cell.
Fill in the blank: The cytoskeleton is dynamic and can rapidly ______.
assemble and disassemble
What is the relationship between the cytoskeleton and cell motility?
The cytoskeleton is essential for cell motility, allowing cells to crawl and change shape.
Which type of cytoskeletal filament is the thickest?
Microtubules
True or False: Cytoskeletal components are only found in eukaryotic cells.
False
What specialized structure do microtubules form in cilia and flagella?
The axoneme
Fill in the blank: The cytoskeleton interacts with ______ to influence cell shape and motility.
the plasma membrane
What is the role of the cytoskeleton in maintaining tissue integrity?
The cytoskeleton helps maintain the structure and cohesion of tissues by connecting cells.
Which cytoskeletal element is primarily responsible for the formation of the cleavage furrow during cytokinesis?
Microfilaments
What is the function of the centrosome in relation to microtubules?
The centrosome organizes microtubules and serves as a microtubule organizing center.
True or False: Actin filaments are involved in the transport of organelles within the cell.
True
