Home Quiz "Caffeine Challenge: Test Your Knowledge on the World's Favorite Stimulant!
Preview (10 questions)
1 Question
30 secondi fa
Q.

What type of compound is caffeine?

Alkaloid

Protein

Fat

Carbohydrate
2 Question
30 secondi fa
Q.

How does caffeine primarily work in the body?

By increasing serotonin levels

By blocking adenosine receptors

By reducing dopamine production

By increasing the oxygen supply to the brain
3 Question
30 secondi fa
Q.

Which organ primarily metabolizes caffeine?

Heart

Eyes

Liver

Brain
4 Question
30 secondi fa
Q.

How long does it typically take for caffeine to reach peak levels in the bloodstream?

between 15 and 120 minutes

between 3 hours

20 minutes

1 hour
5 Question
30 secondi fa
Q.

Which type of coffee generally has the most caffeine per serving?

Robusta beans

Espresso

Instant coffee

Decaf coffee
6 Question
30 secondi fa
Q.

Which is known as the best-known source of caffeine?

coffee bean

milk

orange juice

none of the mentioned
7 Question
30 secondi fa
Q.

State true or false.

Caffeine has both positive and negative health effects.

true

false
8 Question
30 secondi fa
Q.

Below the following, How does caffeine affect the body?

Makes it easier to focus

Increased breathing and heart rate

Raises the blood pressure

All the mentioned
9 Question
30 secondi fa
Q.

How much caffeine does the average U.S. adult caffeine-drinker have in a day?

120 mg

135 mg

110 mg

90 mg
10 Question
30 secondi fa
Q.

To which class does caffeine belong?

Methylxanthine class

Nitrate class

Glycerol

Phosphate