Kinesin Is a Motor Molecule That Is Characterized by

question 13

Multiple Choice

Kinesin is a motor molecule that is characterized by

• A)motion along actin filaments.
• B)sliding along actin in sarcomere.
• C)motion toward the "plus" end of the microtubule.
• D)motion toward the "minus" end of the microtubule.
• E)activation of sliding in flagellar microtubules.

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Definitions:

Depolarization Phase

The process in which a cell's membrane potential becomes less negative, leading towards the threshold for an action potential.

Action Potential

A quick electrical impulse that travels down a neuron's axon, triggering the release of neurotransmitters.

Repolarization Phase

A stage in the cardiac cycle following depolarization, where the heart muscle returns to its resting state by restoring the negative charge on the cell's membrane.

Neuromuscular Junction

The synapse or interface between a neuron and a muscle cell, allowing for the transmission of a nerve impulse to trigger muscle contraction.