When Voltage-Gated K⁺ Channels Open on the Conductive Segment of a Neuron

question 148

Multiple Choice

When voltage-gated K⁺ channels open on the conductive segment of a neuron,

• A) potassium exits, repolarizing the cell to a negative value.
• B) potassium exits, depolarizing the cell to an even more negative value.
• C) potassium enters, depolarizing the cell to a positive value.
• D) potassium enters, repolarizing the cell to a negative value.
• E) potassium enters, repolarizing the cell to a positive value.

Understand the concepts of hydrophilicity and hydrophobicity in molecules.

Recognize the structural differences and similarities between different types of lipids including triglycerides and phospholipids.

Describe the organization and properties of biological membranes.

Classify carbohydrates and understand their functions and structures.

---

Definitions:

Fraternal Twin

Siblings who are born at the same time but developed from two separate eggs fertilized by two different sperm, genetically similar as typical siblings.

Range of Reaction

The concept that an individual’s genetic makeup establishes the range of possible responses to different environmental qualities.

Epigenetics

The study of changes in organism caused by modification of gene expression rather than alteration of the genetic code itself.

Phenotypes

The observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.