Many signal transduction pathways use second messengers to:

relay the message from the inside of the membrane throughout the cytoplasm.

transport a signal through the lipid bilayer portion of the plasma membrane.

relay a signal from the outside to the inside of the cell.

relay the message from the inside of the membrane throughout the cytoplasm.

amplify the message by phosphorylating proteins.

protein on the cytoplasmic side of a membrane

specific type of membrane-receptor protein

protein on the cytoplasmic side of a membrane

Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to

the active site of an enzyme in the cytoplasm that binds to a specific substrate.

RNA specifying the amino acids in a polypeptide.

an enzyme with an optimal pH and temperature for activity.

The 3 steps of signal transduction in order are

reception, transduction, response

response, transduction, reception

reception, response, transduction

transduction, reception, response

In cell signaling, how is the flow of specific ionsregulated?

Opening and closing of ligand-gated channels

Cell Signaling Class 11 MCQ Questions With Answers Quiz

5.

What could happen to the target cells in an animal that lack receptors for local regulators?

They could compensate by receiving nutrients via an α factor.

They could develop normally in response to neurotransmitters instead.

They could divide but never reach full size.

They would not be able to multiply in response to growth factors from nearby cells.

1.

Many signal transduction pathways use second messengers to:

2.

What is a G protein?

3.

Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to

4.

Which of the following can activate a protein by transferring a phosphate group to it?

5.

What could happen to the target cells in an animal that lack receptors for local regulators?

6.

Which letter represents the cell surface receptor protein?

7.

Which letter represents the cell membrane?

8.

Which of the following is a chemical message that usually travels through the bloodstream to target cells?

9.

The 3 steps of signal transduction in order are

10.

Which letter represents the ligand?

11.

In cell signaling, how is the flow of specific ionsregulated?

Time

1. Many signal transduction pathways use second messengers to:

2. What is a G protein?

3. Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to

4. Which of the following can activate a protein by transferring a phosphate group to it?

5. What could happen to the target cells in an animal that lack receptors for local regulators?

6. Which letter represents the cell surface receptor protein?

7. Which letter represents the cell membrane?

8. Which of the following is a chemical message that usually travels through the bloodstream to target cells?

9. The 3 steps of signal transduction in order are

10. Which letter represents the ligand?

11. In cell signaling, how is the flow of specific ionsregulated?

Time

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1.

Many signal transduction pathways use second messengers to:

2.

What is a G protein?

3.

Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to

4.

Which of the following can activate a protein by transferring a phosphate group to it?

5.

What could happen to the target cells in an animal that lack receptors for local regulators?

6.

Which letter represents the cell surface receptor protein?

7.

Which letter represents the cell membrane?

8.

Which of the following is a chemical message that usually travels through the bloodstream to target cells?

9.

The 3 steps of signal transduction in order are

10.

Which letter represents the ligand?

11.

In cell signaling, how is the flow of specific ionsregulated?