Alcohol and caffeine

Question 1

Alcohol definiton

Answer 1

A colourless, volatile, flammable liquid, synthesised or obtained by fermentation of sugars and starches and widely used, either pure or denatured

Question 1

Alcohol chemistry formula

Answer 1

C2 H5 OH

Question 2

UK guidelines

Answer 2

Total 14 units per week

Question 3

Binge drinking

Answer 3

Half the weekly allowance consumed in one session

Question 4

Absorption of alcohol following digestion

Answer 4

• Ethanol is rapidly absorbed
• It appears in the blood 5 mins after ingestion
• Most in the small intestine

Question 5

First pass metabolism

Answer 5

Process by which a substance is metabolised by the liver before entering circulation

Question 6

What are the 3 routes that ethanol is oxidised to acetaldehyde

Answer 6

1. Alcohol dehydrogenase
2. Microsomal ethanol oxidising system
3. Catalase

Question 7

What are the factors affecting alcohol metabolism (3)

Answer 7

• Prescence of food in the stomach
• Speed drinking
• Body weight

Question 8

Acute effects of alcohol

Answer 8

In healthy adults consuming low-to-moderate amounts of alcohol typically has little acute effects on hemodynamic or blood pressure

Question 9

J-shaped curve

Answer 9

A small-moderate level of alcohol consumption has been proposed to be protective

Question 10

Caffeine mechanism of action

Answer 10

• Psychoactive
• Adenosine receptor antagonist
• Inhibitory neurotransmitter
• Promotes sleep
• Suppresses arousal