The neurotransmitter glutamate opens channels that are permeable to sodium ions. what effect does glutamate produce on a postsynaptic neuron?

Glutamate is one of the most abundant neurotransmitters in the body. It is the main excitatory neurotransmitter. Glutamate binds to glutamate receptors on a postsynaptic neurone and that way it performs its function. The most important effects on the postsynaptic neuron are achieved through postsynaptic excitation of the neurons. Some of them are neural communication, learning, and memory formation. Mutations of glutamate receptors are linked to many neurodegenerative diseases.

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Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.