What Happens When a Neurotransmitter Is Released by a Presynaptic

question 97

Multiple Choice

 What happens when a neurotransmitter is released by a presynaptic cell?

• A) It causes calcium to rush into the presynaptic neuron.
• B) It causes calcium to rush into the postsynaptic neuron.
• C) The neurotransmitter passively spreads across the synaptic cleft.
• D) The neurotransmitter is actively transported across the synaptic cleft.

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Definitions:

Abiotic Components

Non-living chemical and physical parts of the environment that affect living organisms.

Biotic

Term that indicates life; a cell is an example of a biotic factor in the environment.

Energy Flow

The movement of energy through a food chain or ecosystem, typically from the sun through producers to consumers and finally to decomposers.

Trophic Level

The position an organism occupies in a food chain, based on its feeding relationships, ranging from primary producers to apex predators.