Proteoglycans in Cell Development

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What is a key function of proteoglycans in cell development?

Cell signaling

Cell division

Cell adhesion

Extracellular communication (correct)

What is the primary component of the proteoglycan aggregate?

Core protein (correct)

Link proteins

Hyaluronic acid

Glycosaminoglycan chains

What is the role of proteoglycans in the extracellular matrix?

Structural support (correct)

Biochemical signaling

Cell adhesion

All of the above

What is the function of glycosaminoglycan chains in proteoglycans?

Water retention and hydration Signup and view all the answers

What is the term for the interaction between proteoglycans and other components of the extracellular matrix?

Supramolecular complex Signup and view all the answers

What is the primary component of the extracellular matrix?

Fibrous proteins Signup and view all the answers

What is the primary function of lectins in the context of glycoproteins?

To recognize and bind to specific sugars on glycoproteins Signup and view all the answers

What is the main difference between glycosaminoglycans and proteoglycans?

Glycosaminoglycans are single molecules, while proteoglycans are hybrids of glycosaminoglycans and a core protein Signup and view all the answers

What is the role of the 'spike protein' of SARS-CoV-2?

To recognize and bind to human cells Signup and view all the answers

What is the primary function of proteoglycans in connective tissues?

To regulate hydration and maintain tissue integrity Signup and view all the answers

What type of carbohydrate molecules are found in glycoproteins?

Oligosaccharides Signup and view all the answers

Where are glycosaminoglycans primarily found?

In the extracellular matrix and joints Signup and view all the answers

What is the function of fibronectin in the extracellular matrix?

Cell adhesion, migration, growth and differentiation Signup and view all the answers

What type of protein allows cells to adhere to the ECM?

Integrin proteins Signup and view all the answers

What is the main component of proteoglycan aggregates in the ECM?

Glycosaminoglycans Signup and view all the answers

What is the role of proteoglycans in the ECM?

Maintaining ECM structure and organization Signup and view all the answers

Which type of lipid is involved in cell signaling and is a co-factor for enzymes?

Eicosanoids Signup and view all the answers

What is the main function of glycoproteins like fibronectin?

Cell-ECM adhesion Signup and view all the answers