How Does ChR2 Activate Neurons

question 21

Multiple Choice

How does ChR2 activate neurons?

• A) Blue light causes a conformational change in a rhodopsin protein which causes the channel to open. This results in a nonselective cation current that allows more Na⁺ influx than K⁺ efflux, depolarizing the neuron.
• B) Blue light causes a conformational change in a rhodopsin protein which causes the channel to open. This results in a nonselective cation current that allows more K⁺ efflux than Na⁺ influx, depolarizing the neuron.
• C) Blue light activates the rhodopsin protein that activates a G protein which opens a nonselective cation current which allows more Na⁺ influx than K⁺ efflux, depolarizing the neuron.
• D) Blue light activates the rhodopsin protein that activates a G protein which opens a nonselective cation current which allows more Na⁺ influx than K⁺ efflux, hyperpolarizing the neuron.
• E) Blue light activates the rhodopsin protein that activates a G protein which opens a nonselective cation current which allows more K⁺ efflux than Na⁺ influx, depolarizing the neuron.
• F) Blue light activates the rhodopsin protein that activates a G protein which opens a nonselective cation current which allows more K⁺ efflux than Na⁺ influx, hyperpolarizing the neuron.

---

Definitions:

Memos

Brief written messages, typically used within an organization to communicate information, updates, or instructions.

Leadership Theories

Conceptual frameworks that seek to explain how leaders influence the behavior of individuals or groups to achieve common goals.

Leadership

Leadership is the act of guiding or influencing a group towards a goal or vision, often by encouraging and inspiring others to follow.

Management

The organization and coordination of activities to achieve predefined objectives, often involving planning, leading, organizing, and controlling resources.