Vaping was introduced as a way of helping people to give up smoking tobacco. The liquid used in vaping contains nicotine but not the other chemicals found in tobacco smoke. (i) Complete the sentence by putting a cross (X) in the box next to your answer. Nicotine is classified as a ☐ A depressant ☐ B hallucinogen ☐ C painkiller ☐ D stimulant (ii) Describe the effect of nicotine on the human brain.

GCSE Edexcel Biology Antibiotics & other medicines: Vaping was introduced as a way o

Vaping was introduced as a way of helping people to give up smoking tobacco - Edexcel - GCSE Biology - Question 4 - 2018 - Paper 1

Question 4

Vaping was introduced as a way of helping people to give up smoking tobacco. The liquid used in vaping contains nicotine but not the other chemicals found in tobacc... show full transcript

Worked Solution & Example Answer:Vaping was introduced as a way of helping people to give up smoking tobacco - Edexcel - GCSE Biology - Question 4 - 2018 - Paper 1

Step 1

Complete the sentence by putting a cross (X) in the box next to your answer.

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Answer

Nicotine is classified as a D stimulant. This classification is because nicotine increases alertness and arousal, affecting the central nervous system.

Step 2

Describe the effect of nicotine on the human brain.

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Answer

Nicotine has several effects on the human brain, including:

Dopamine Release: Nicotine stimulates the release of dopamine, a neurotransmitter associated with pleasure and reward, leading to feelings of euphoria.
Increase in Synaptic Activity: It enhances synaptic transmission, which can improve attention and cognitive functions.
Addiction Potential: Its effects can lead to dependency, making it difficult for users to quit.

These actions contribute to both the short-term pleasurable effects and the long-term addiction potential associated with nicotine use.

Vaping was introduced as a way of helping people to give up smoking tobacco - Edexcel - GCSE Biology - Question 4 - 2018 - Paper 1

Worked Solution & Example Answer:Vaping was introduced as a way of helping people to give up smoking tobacco - Edexcel - GCSE Biology - Question 4 - 2018 - Paper 1

Complete the sentence by putting a cross (X) in the box next to your answer.

Describe the effect of nicotine on the human brain.

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