Which Is an Experimental Means That Can Be Used to Distinguish

question 234

Multiple Choice

Which is an experimental means that can be used to distinguish between a signal transduction pathway that uses a cell membrane receptor and one that uses an intracellular receptor?

• A) Compare the ability of cells to respond to chemical signals that are similar in structure to the actual signal molecule.
• B) Observe whether stimulation of the signal transduction pathway by the signal molecule can be inhibited by another molecule.
• C) Incubate cells with a signal molecule containing the carbon-14 radioisotope and observe whether any carbon-14 enters cells.
• D) Quantify the number of cell membrane receptors present in a single cell and compare with cell membrane receptor numbers in other cell types.
• E) Determine whether the cell response involves a change in gene expression or a change in the activity of a cytosolic enzyme.

Explain the role of ion channels and ion pumps in neuron functions.

Understand the conditions under which action potentials are generated.

Recognize the importance of experimental models in neuroscience research.

Understand the basic principles of action potentials and their all-or-none law.

---

Definitions:

Socially

Pertaining to or involving the interaction of individuals within a society or community.

Acculturation

The process of cultural exchange and adaptation between groups or individuals of different backgrounds, often following prolonged contact.

Ethnocide

The deliberate and systematic destruction of the culture of an ethnic group, while not necessarily targeting its members' lives directly.

Nonviolent Resistance

A method of protest or activism that rejects the use of physical force, relying instead on various forms of peaceful demonstration to achieve goals.