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Cellular Messaging Overview Quiz

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Questions and Answers

What is the main function of scaffolding proteins in signal transduction?

Promote enzyme leakage from cells

Increase signal transduction efficiency by grouping proteins (correct)

Facilitate the binding of ligands to receptors

Prevent the activation of relay proteins

In cell signaling, what happens to unbound receptors when ligand concentration falls?

Receptors become permanently activated

Receptors remain active

Receptors revert to an active state

Receptors revert to an inactive state (correct)

What is the purpose of apoptosis in cell biology?

Inactivate scavenger cells

Promote enzyme leakage from dying cells

Prevent enzymes from leaking out of dying cells (correct)

Facilitate cell division

How does apoptosis contribute to embryonic development?

Shapes an organism by eliminating unnecessary structures Signup and view all the answers

What happens to components of a cell during apoptosis?

They are packaged into vesicles Signup and view all the answers

Which statement about signaling complexes is true?

They group together proteins involved in the same pathway Signup and view all the answers

What is the role of termination mechanisms in cell signaling?

Inactivate signaling pathways when needed Signup and view all the answers

How does scaffolding protein help in signal transduction?

By increasing the efficiency through grouping proteins Signup and view all the answers

What is the significance of apoptosis in preventing damage to neighboring cells?

It packages cell components for digestion by scavenger cells Signup and view all the answers

How does apoptosis contribute to shaping an organism during embryonic development?

It systematically eliminates unnecessary structures to shape the organism Signup and view all the answers