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What are the effects of MDMA (“ecstasy”)? Stimulant effects at low doses and hal

ID: 3503039 • Letter: W

Question

What are the effects of MDMA (“ecstasy”)?

Stimulant effects at low doses and hallucinogenic effects at high doses.

Antisocial effects at low doses and prosocial effects at high doses.

Depressant effects at low doses and stimulant effects at high doses.

Reduced pain at low doses and increased pain at high doses.

29)

25) What is the difference in function between the dendrites and the axon of a neuron?

Dendrites send messages and the axon receives messages

Dendrites receive messages and the axon sends messages

Dendrites synthesize proteins, and the axon contains the chromosomes.

Dendrites contain the chromosomes and the axon synthesizes proteins

17)

What crosses the membrane to cause an action potential?

Neurotransmitters

Hormones

Sodium ions

Water molecules

22)

New experiences produce what effect on adult neurons?

Axons and dendrites form new branches.

Axons change the speed and magnitude of their action potentials.

Neurons migrate from one brain area to another, depending on where they are needed.

Certain neurons can grow a second or third axon.

20) What does a neurotransmitter do?

It either excites or inhibits a neuron.

It measures the amount of activity in a brain.

It flows through the bloodstream.

It conveys information from one brain to another.

a.

Stimulant effects at low doses and hallucinogenic effects at high doses.

b.

Antisocial effects at low doses and prosocial effects at high doses.

c.

Depressant effects at low doses and stimulant effects at high doses.

d.

Reduced pain at low doses and increased pain at high doses.

Explanation / Answer

Question 25

Answer : Option B

Axon sends the message away and dendrites receives the message.

Question 20

Answer : Option A

It either excites or inhibits a neuron.

Question 17

Answer : Option C

Sodium ions

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