The Uptake of Nutrients by Roots Requires Energy Because the

question 60

Multiple Choice

The uptake of nutrients by roots requires energy because the

• A) concentrations of nutrients in the soil are greater than the concentrations in root cells.
• B) concentrations of nutrients in the soil are much more dilute than the concentrations in root cells.
• C) concentrations of nutrients in the soil and in root cells are equal.
• D) root hairs are covered by a waxy layer.

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Definitions:

Presynaptic Cell

Refers to the neuron that sends signals to a synapse before neurotransmitter release during neural communication.

Calcium Ions

Vital ions within cellular processes, including muscle contraction, neurotransmitter release, and signal transduction.

Transmitter-Activated Receptor

Protein that has a binding site for a specific neurotransmitter and is embedded in the membrane of a cell.

Membrane Depolarization

The process by which a cell's membrane potential becomes less negative (or more positive), often leading to the initiation of an action potential in neurons.