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The lacrimal puncta/canaliculi/sac & hasolacrimal duct in the eye & accessory structures secrete and contain lysozyme which is an antibacterial enzyme(naturally occurring in tears). due to its acidity its responsible for killing some bacteria.
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∙ 12y ago
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What are substances do tears contain that kill bacteria?
Lysozyme
How does tears compare to blood pH?
tears are 5.0 blood is 7.4 but the both can kill bacteria. with the acid in them.
What produces enzymes to digest bacteria?
Tears produce lysozyme to kill bacteria, gastric juice secretes Hcl that kills bacteria.
What is the role of tears in the immune system?
They have enzymes in them to kill pathogens
Tears contain antibacterial substances that destroy many bacteria?
Basic a level knowledge: Tears are a form of chemical barrier from infection. The enzyme lysozyme is found in tears which kills of some bacteria which helps prevent pathogens entering the body and causing infection. I hope this helps, I'm unsure how the enzyme kills the bacteria as I was only aware that enzymes are catalysts that lower the activation energy in a reaction. If any one knows I'll be very grateful. :) Xxx
Can tears destroy bacteria?
Tears contain an antibacterial substance :)
What chemical in your tears kills?
Your tears contain the enzyme lysozyme. This chemical disrupts the cell walls of gram-positive bacteria by digesting the peptidoglycan in them. This enzyme is also found in your saliva and is an example of a non-specific immune response.
Can sweat or tears kill germs?
Your tears contain the enzyme lysozyme which can kill gram-positive bacteria by disrupting their cell-walls. It does this by digesting the peptidoglycan found in them. Secretions from sebacious and sweat glands on your skin don't necessarily kill bacteria but they do give the skin a PH of around 3-5. This acidity helps prevent colonisation by pathogens on the skin.
What kind of drugs can kill bacteria?
The types of drugs that can kill bacteria are called 'antibiotics'.
Does aspirin kill bacteria?
No , aspirin does not kill Bacteria .
Two natural defences the body has against viruses?
Tears, sweat and saliva all contain enzymes which weaken the cell membrane and kill the bacteria cells. INTERFERON and VACCINES
How do tears fight against pathogens?
True A+
