WHAT ARE
SOME
ANIMALS THAT
HAVE A
TOXIN,POISON
,OR VENOM?
▪ Do NOW: In the Chat box put an animal
you think could be one of those three
things
ANIMALS
THAT HAVE
TOXINS
POISONS OR
VENOM
WHAT’S THE DIFFERENCE??
▪ They’re similar but also very different
▪ A toxin is a biologically produced chemical that changes how another organism
works
▪ Venom is injected; if it bites you, you die.
▪ Poison is secreted; if you bite or touch it, you die.
THE TRUTH ABOUT TOXINS
▪ Poisons and Venom are both forms
toxins
▪ Exotoxins- discharged by an
organism
▪ Endotoxins- toxins that are part
bacteria
▪ Two functions
Predation- killing a meal(ex. Spiders,
wasps, jelly fish)
▪ Defense- discouraging a predator(ex.
Honey bees, ants, broccoli)
▪
TYPES OF TOXINS
▪ Hemotoxin- destroys red blood cells
▪ Phototoxin- cause allergic reactions
▪ Necrotoxin- destroy cells(decay)
▪ Neurotoxin- affects the nervous system(paralysis)
POISONOUS
POISONS
▪
Poison is secreted; if you bite or touch it, you
die.
▪
Can be absorbed, inhaled, ingested
▪
Some can make you sick
▪
Some might kill you
▪
Some may cause health problems years later
POISONOUS
POISONS
▪
Poisons can be natural and synthetic (made
in a lab)
▪
Natural poisons
▪ Belladonna- a poisonous plant
▪ Tetrodotoxin- neurotoxin with no
antidote; found in pufferfish
▪ Nitrous oxide- laughing gas
▪
Synthetic poisons
▪ Pesticides
▪ Sarin- neurotoxin that causes
paralysis within minutes
VENOMOUS
VENOM
▪
Venoms occur only naturally
▪
Typically injected by either a bite or sting
▪
Animals are the only producers of venom
▪
Animals that produce Venom
▪
Snakes
▪
Scorpions
▪
Bees
▪
Spiders