Select the two true statements about signal transduction from the statements bel

ID: 164283 • Letter: S

Question

Select the two true statements about signal transduction from the statements below.

1. Galpha proteins are active in the GTP-bound state.

2. First messengers must be transported into the cells to initiate signal transduction.

3. Ligand binding causes conformational changes in G-protein coupled receptors that result in changes in the receptor’s enzymatic activity.

4. Either phosphodiesterase or phospholipase C can act as a second messenger in signal transduction processes.

5. Interactions of Galpha with other proteins, such as adenylate cyclase, can affect their enzymatic activity.

1. Galpha proteins are active in the GTP-bound state.

2. First messengers must be transported into the cells to initiate signal transduction.

3. Ligand binding causes conformational changes in G-protein coupled receptors that result in changes in the receptor’s enzymatic activity.

4. Either phosphodiesterase or phospholipase C can act as a second messenger in signal transduction processes.

5. Interactions of Galpha with other proteins, such as adenylate cyclase, can affect their enzymatic activity.

The two true statements about signal transduction from the statements are-

1. G-alpha proteins are active in the GTP-bound state.

5. Interactions of G-alpha with other proteins, such as adenylate cyclase, can affect their enzymatic activity.

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