You Have Discovered a New Coccoid-Shaped Microorganism with No Nucleus

question 63

Multiple Choice

You have discovered a new coccoid-shaped microorganism with no nucleus, a rigid cell wall, and a diameter of 2 μm. Chemical tests reveal that its cell wall does NOT contain peptidoglycan. The new microorganism is

• A) most likely a bacterium.
• B) most likely a eukaryote.
• C) most likely an archaeon.
• D) either a bacterium or an archaeon.

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Definitions:

Action Potential

A momentary change in electrical potential on the surface of a cell, especially a nerve or muscle cell, that occurs when it is stimulated, leading to the transmission of an electrical impulse.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another, influencing a variety of physiological functions and behaviors.

Action Potentials

Electrical impulses that travel along the axon of a neuron, signaling the transmission of information.

Potassium Ions

Positively charged ions (K+) crucial for various biological functions, including the regulation of heartbeat and muscle functions, and critical in establishing the resting membrane potential in neurons.