What Causes the Membrane Potential to Return to the Normal

question 43

Multiple Choice

What causes the membrane potential to return to the normal negative value after an action potential has occurred?

• A)opening of a voltage-gated K+ channel
• B)opening of a voltage-gated Na+ channel
• C)closing of a voltage-gated K+ channel
• D)opening of a ligand-gated Na+ channel
• E)opening of a voltage-gated K+ facilitated transporter

Gain knowledge on how disaccharides interact with chemical tests like Tollin's test.

Identify and differentiate types of glycosidic linkages in carbohydrates.

Learn the structural elucidation methods for carbohydrates using chemical reactions (e.g., Ruff degradation, Kiliani-Fischer synthesis) and their interpretation.

Recognize the natural occurrence and structural features of bioactive compounds like soyasaponin and their aglycones.

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Definitions:

Lignin

A complicated organic molecule found in the cell walls of numerous plants, contributing to their stiff and woody nature.

Cellulose

A complex carbohydrate that forms the primary structural component of plant cell walls and is indigestible to humans.

Xylem

The plant's vascular system responsible for transporting water and dissolved nutrients from the roots throughout the rest of the plant.

Liverworts

Non-vascular plants belonging to the division Marchantiophyta, among the earliest land plants.