Which of the Following Nutrients Provides Energy for Humans

question 9

Multiple Choice

Which of the following nutrients provides energy for humans?

• A)carbohydrates
• B)vitamin A
• C)iron
• D)calcium

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Definitions:

Nicotinic Receptors

A type of acetylcholine receptor found in the nervous system that, when activated, allows for the passage of ions across cell membranes, involved in muscle contraction and other processes.

Acetylcholine

A neurotransmitter involved in both the peripheral and central nervous systems, playing a critical role in muscle contraction and potentially in memory formation.

Excitatory

Relating to or causing an increase in activity or efficiency in a nerve or muscle, often involving the release of neurotransmitters.

Parasympathetic Preganglionic Axons

Nerve fibers originating in the central nervous system that extend to a ganglion in the parasympathetic part of the autonomic nervous system.