MacConkey Agar Is Used To

question 8

Multiple Choice

MacConkey agar is used to:

• A) Differentiate between hemolytic and nonhemolytic gram-negative rods.
• B) Show the clear, pinpoint colonies of Haemophilus influenzae.
• C) Demonstrate the large, pink colonies of Neisseria meningitidis.
• D) Differentiate between lactose fermenters and lactose nonfermenters.

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Definitions:

Excitation

The process of stimulating activity in an organism or in any of its parts, often leading to increased activity or responsiveness.

Synapses

The junctions between neurons through which they communicate with each other using chemical or electrical signals.

Presynaptic Neuron

The neuron that sends a signal across the synapse to another neuron.

Neurotransmitter

Chemical substances released by neurons to transmit signals across a synapse to another neuron or to a muscle or gland cell.