Neurotransmitters

Question 1

histamine (H)

Answer 1

(small molecule neurotransmitter) - Neurotransmitter that controls arousal and waking; can cause the constriction of smooth muscles and so, when activated in allergic reactions, contributes to asthma, a constriction of the airways.

Question 2

serotonin (5-HT)

Answer 2

(small molecule neurotransmitter) - Amine neurotransmitter that plays a role in regulating mood and aggression, appetite and arousal, the perception of pain, and respiration.

Question 3

glutamate (Glu)

Answer 3

Amino acid neurotransmitter that excites neurons

Question 4

gamma-aminobutryric acid (GABA)

Answer 4

Amino acid neurotransmitter that inhibits neurons.

Question 5

neuropeptide

Answer 5

Multifunctional chain of amino acids that acts as a neurotransmitter; synthesized from mRNA on instructions from the cell’s DNA. Peptide neurotransmitters can act as hormones and may contribute to learning.

Question 6

nitric oxide (NO)

Answer 6

Gas that acts as a neurotransmitter - for example. to dilate blood vessels, aid digestion, and activate cellular metabolism.

Question 7

carbon monoxide (CO)

Answer 7

Gas that acts as a neurotransmitter in the activation of cellular metabolism.