Cell Signaling Pathways: G-Protein Activation and Secondary Messengers

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What are the two modes of induction mentioned in the text?

Informative and Directive

Instructive and Situational

Permissive and Coercive

Permissive and Instructive (correct)

In permissive induction, what is required for genes to be expressed?

High cellular metabolism

Physical contact with other cells

Specific gene markers

Proper environment (correct)

What is the role of Laminin in embryonic development?

Substrate adhesion molecule (correct)

Transcription factor

Metabolic enzyme

Cell cycle regulator

Where can cascades of induction/reciprocal interactions be observed according to the text?

Mouse Lens Signup and view all the answers

What does instructive induction require for the genes to be specified?

A signal from the inducing cell Signup and view all the answers

How do embryonic cells commit to their developmental pathway in permissive induction?

By waiting for the go-signal of information Signup and view all the answers

What is responsible for the competence of dorsal ectoderm?

Pax6 protein Signup and view all the answers

What happens when the optic vesicle is removed?

No lens is induced Signup and view all the answers

Which proteins further activate the Sox2 & Sox3 genes as inductive signals?

BMP4 Signup and view all the answers

What happens if tissue other than the optic vesicle is implanted?

No induction occurs Signup and view all the answers

Which type of interactions can lead to cellular responses at the cytoplasmic level according to the text?

Cell-to-cell signaling Signup and view all the answers

What is the role of Phospholipase C in signal transduction?

Cleaves phosphorylated molecules into diacylglycerol and inositol triphosphate Signup and view all the answers

What is the function of inositol triphosphate (IP3) in signal transduction?

Activates the release of calcium ions from the endoplasmic reticulum Signup and view all the answers

How does calcium contribute to signal transduction?

Acts as a secondary messenger Signup and view all the answers

What defines embryonic cell competence?

The ability of a cell/tissue to respond to a specific inductive signal Signup and view all the answers

How can embryonic cell competence be established?

Synthesizing new membrane receptors and repressing inhibitors Signup and view all the answers

What role do secondary messengers play in embryonic cell signaling?

Triggering the next step of signaling transduction Signup and view all the answers

Cell Signaling Pathways: G-Protein Activation and Secondary Messengers

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Questions and Answers

What are the two modes of induction mentioned in the text?

In permissive induction, what is required for genes to be expressed?

What is the role of Laminin in embryonic development?

Where can cascades of induction/reciprocal interactions be observed according to the text?

What does instructive induction require for the genes to be specified?

How do embryonic cells commit to their developmental pathway in permissive induction?

What is responsible for the competence of dorsal ectoderm?

What happens when the optic vesicle is removed?

Which proteins further activate the Sox2 & Sox3 genes as inductive signals?

What happens if tissue other than the optic vesicle is implanted?

Which type of interactions can lead to cellular responses at the cytoplasmic level according to the text?

What is the role of Phospholipase C in signal transduction?

What is the function of inositol triphosphate (IP3) in signal transduction?

How does calcium contribute to signal transduction?

What defines embryonic cell competence?

How can embryonic cell competence be established?

What role do secondary messengers play in embryonic cell signaling?

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Cell Signaling Pathways: G-Protein Activation and Secondary Messengers

Podcast Beta

Questions and Answers

What are the two modes of induction mentioned in the text?

In permissive induction, what is required for genes to be expressed?

What is the role of Laminin in embryonic development?

Where can cascades of induction/reciprocal interactions be observed according to the text?

What does instructive induction require for the genes to be specified?

How do embryonic cells commit to their developmental pathway in permissive induction?

What is responsible for the competence of dorsal ectoderm?

What happens when the optic vesicle is removed?

Which proteins further activate the Sox2 & Sox3 genes as inductive signals?

What happens if tissue other than the optic vesicle is implanted?

Which type of interactions can lead to cellular responses at the cytoplasmic level according to the text?

What is the role of Phospholipase C in signal transduction?

What is the function of inositol triphosphate (IP3) in signal transduction?

How does calcium contribute to signal transduction?

What defines embryonic cell competence?

How can embryonic cell competence be established?

What role do secondary messengers play in embryonic cell signaling?

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