18 Questions
What is the crucial role of the cytoskeleton in a cell?
Providing structural support and determining cell shape
How does the cytoskeleton contribute to tissue stabilization?
By interacting with the extracellular matrix and other cells
What is the primary function of the integration of cells into tissues?
Ensuring proper tissue development and coordinated function of multicellular organisms
What is the main role of the interactions between cells and the extracellular matrix?
Aiding in the attachment and signaling processes of cells
What is the significance of the precise regulation of cytoskeletal filaments' formation and breakdown?
It allows cells to adapt their internal structure dynamically
How does the cytoskeleton contribute to cell polarity?
By organizing the cytoplasm and establishing cell polarity
What is the primary function of microtubules in the cell?
Vesicular transport and formation of cilia and flagella
Which type of collagen is abundant in cartilage and important for its structure?
Type II collagen
What is the main function of type IV collagen in the body?
Structural organization of cells and basal membrane function
What is the role of fibronectin in the extracellular matrix?
Enables cell adhesion to the ECM, linking to specific receptors and contributing to tissue organization
What is the function of laminin in the extracellular matrix?
Facilitation of cell adhesion and connection of cells to the ECM
Which protein provides resistance and serves as the principal structural protein in the extracellular matrix?
Collagen (Type I)
What is the primary role of microfilaments in the cell?
Cell motility and contractility
What are the main functions of the extracellular matrix?
Rigidity, compressibility, adhesion, and selectivity
Which type of collagen is present in tissues constantly subjected to stretching, such as blood vessels and smooth muscle?
Type III collagen
What is the role of non-collagenous proteins like elastin in the extracellular matrix?
Contribution to tissue elasticity
What is the primary function of filaments intermediate (e.g., keratin, vimentin) in the cell?
Structural support
What role do specialized proteins like fibronectin play in the extracellular matrix?
Facilitation of cell adhesion to the ECM through specific receptors
This quiz focuses on the effective integration of cells into tissues in tissue engineering, emphasizing direct cell-cell interactions and interactions between cells and the extracellular matrix. It also covers the crucial role of the cytoskeleton in providing structural support and enabling directed cell movements.
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