Question

Which of the following act as a neurotransmitter in a frog?

• A. Acetylcholine is the only neurotransmitter
• B. Noradrenaline is the only neurotransmitter
• C. Both acetylcholine and noradrenaline act as neurotransmitters
• D. Neither acetylcholine nor noradrenaline act as neurotransmitter

Answer 1

The correct option is C Both acetylcholine and noradrenaline act as neurotransmitters

Acetylcholine and noradrenaline are neurotransmitters i.e., are endogenous chemicals that transmit signals across a synapse from one neuron to another target neuron.
In the frog, the electrical stimulation of the vagus nerve releases a chemical known as acetylcholine. Acetylcholine and noradrenaline are present in frog and causes vasoconstriction in the frog's vessels.
So, the correct answer is option C.