A Student Views a Cross Section of a Plant Stem

question 87

Multiple Choice

A student views a cross section of a plant stem under a microscope.She decides that the plant must be a monocot,rather than a eudicot,because its vascular tissue

• A) is arranged in vascular bundles.
• B) contains phloem but not xylem.
• C) contains xylem but not phloem.
• D) has vascular bundles arranged in a circle.
• E) has vascular bundles scattered throughout.

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Definitions:

Neurotransmitter Molecules

Chemical substances in the nervous system that transmit signals across a chemical synapse from one neuron to another neuron, muscle cell, or gland cell.

Agonists

Agonists are chemicals or drugs that activate receptors in the body to produce a physiological response similar to that of a natural substance.

Neurotransmitters

Chemical messengers in the brain and nervous system that transmit signals between neurons, influencing various functions including mood, sleep, and appetite.

Chemical Molecules

Groups of atoms bonded together, representing the smallest fundamental units of a chemical compound that can take part in a chemical reaction.