Why do we cry when chopping onions?

What do onions spew?

• Odor

• Enzymes & sulfenic acid

• Genus allium

• Allium cepa

Using a fan or ventilator helps you cry less?

• Yes

• Maybe

• No

• Definitely not

Propanethial S-oxide turns into...

• Allium cepa

• Water layer

• Enzymes

• Sulfuric acid

Onions allergies can lead to...

• Crying

• Hives, itching, tingling

• Irritation

• Crying, itching, irritation

Some ways of prevention are...

• Soak the onion in water to disolve the amino acids

• Wear swimming/ski googles

• Cut the onions vertically

• Wash the onion with soap and water

As soon as the knife cuts the onion cells, it releases...

• Enzymes

• Aliinase (enzyme)

• Acids

• All of the above

Wich is the scientific name of the onion?

• None of the above

• Allium cepa

• Genus allium

• Onion

Propanethial S-oxide is an...

• Irritating gas

• Enzyme

• Lachrymatory agent

• Acid

What onion compound is the responsible of making you cry?

• Sulfuric acid

• Propanethial S-oxide

• Sulfenic acid

• Allinase

Onions are equipped with...

• A defense mechanism

• A barrier

• A layered armour

• A peel off skin