Which of the Following Is a Unique Characteristic of Active

question 9

Multiple Choice

Which of the following is a unique characteristic of active transport?

• A)transport of hydrophobic molecules
• B)absolute requirement for ATP hydrolysis and light energy,or ion gradient energy will not work
• C)transport of a molecule or ion across a membrane,with the species going from a greater concentration to a lesser concentration
• D)the tight coupling of an input of energy to drive a thermodynamically unfavourable reaction

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Definitions:

Cell Death

The process by which cells cease to function, including apoptosis (programmed cell death) and necrosis (death caused by injury or disease).

Dendritic Length

The measure of the extent of a neuron's dendrites, which are the branched projections that receive electrochemical stimulation from other neural cells.

Spine Density

A measure of the number of dendritic spines per unit length of dendrite, indicating the potential for synaptic connectivity and plasticity in neurons.

Neuron Size

The dimension or size of a neuron, including its cell body, dendrites, and axon, which can vary greatly depending on the neuron's type and location in the nervous system.