toxins LD 50 (mg/kg) - Cathedral High School
Toxins
LD
50
200
Toxin
Calculations
100
Movie
Quotes
Relationships
500
Which route of exposure usually enters your blood stream the fastest: oral, lung, dermal
lungs
A man inhales a large quantity of pesticides one day while gardening?
What type of exposure is this? Acute or chronic?
acute
What type of toxin bonds to your muscle and fat?
Oil soluble
Lysol ®
Disinfectant Spray
Disinfects: On environmental surfaces, LYSOL
®
Brand
Disinfectant Spray is tuberculocidal and kills bacteria, viruses and fungi.
Kills viruses, bacteria, mold & mildew
Kills 99.9% of Germs in 30 seconds
Eliminates odors
Original scent
KEEP OUT OF REACH OF CHILDREN
Warning: Read Precautions on First Aid on Back Panel
Precautionary Statements: Hazards to Humans and Domestic
Animals.
WARNING; Causes eye irritation. Do not spray in eyes, on skin or on clothing.
Physical Hazards; FLAMMABLE: Contents under pressure.
Keep away from hear, sparks, and open flames. Do not puncture or incinerate container. Exposure to temperatures above 130 o F may cause bursting.
Active Ingredients:
Dimethyl Benzyl Ammonium Saccharinate, Ethanol
Name a hazardous property of Lysol
flamable
Lysol ®
Disinfectant Spray
Disinfects: On environmental surfaces, LYSOL
®
Brand
Disinfectant Spray is tuberculocidal and kills bacteria, viruses and fungi.
Kills viruses, bacteria, mold & mildew
Kills 99.9% of Germs in 30 seconds
Eliminates odors
Original scent
KEEP OUT OF REACH OF CHILDREN
Warning: Read Precautions on First Aid on Back Panel
Precautionary Statements: Hazards to Humans and Domestic
Animals.
WARNING; Causes eye irritation. Do not spray in eyes, on skin or on clothing.
Physical Hazards; FLAMMABLE: Contents under pressure.
Keep away from hear, sparks, and open flames. Do not puncture or incinerate container. Exposure to temperatures above 130 o F may cause bursting.
Active Ingredients:
Dimethyl Benzyl Ammonium Saccharinate, Ethanol
What is the LD50 range of lysol
50-500
What is LD50?
Lethal dose for 50% of population
What is LD50 for toxin below
40mg/kg
toxins
Cyanide
Nicotine
Black Widow Spider venom
Rattle Snake venom
Tetrodotoxin (from fish)
Dioxin (TCDD)
LD
50
(mg/kg)
10
1
0.55
0.24
0.01
0.001
Which toxin is most lethal
Dioxin
What is half life of the toxin above?
2 days
Name two factors that can cause a difference in response between two individuals exposed to the same toxin with the same LD50?
Age - young or old
Gender - male or female
Genetic differences – different genes
Nutrition
Health – previous or current diseases
Exposure to other toxins – previous or current
20 mg/L = what in ppm?
20 ppm
A 75 kg person consumes 25 mg of tetradotoxin while eating puffer fish. What is the dose of toxin the person consumed?
0.33 mg/kg
Convert 50,000 ppm to % concentration
5%
75% to ppm?
750,000ppm
What % is 500,000 ppm?
50%
Ever since I was a kid I wanted to go to school here, and ever since
I was a kid everyone said it couldn't be done. My whole life people have been telling me what
I could do and couldn't do. I've always listened to them, believed in what they said. I don't want to do that any more .
Rudy
Cornish pixies? Laugh if you will
Mr. Finnigan. But Cornish pixies can be devilishly tricky little blighters.
Harry Potter and the Chamber of
Secrets
Inconceivable
The Princess Bride
I care. Every year the seniors through this dance for the underclassmen called the Spring
Fling. And whosoever is elected
King and Queen automatically become head of the Student
Activities Committee and since I am an active member of the Student
Activities Committee, I would safely say, I care.
Mean Girls
We're getting off on the wrong foot. Allow us to introduce ourselves. Hello, I'm Simon, the smart one.
Alvin and the Chimpmunks
What type of competition is most severe?
intraspecific
What did this experiment support?
Law of competitive exclusion
The cattle egret and cattle or other grazing African ungulate species.
The egret benefits from catching insects that cattle
“scare-up” while grazing.
Cattle unaffected
. What type of relationship?
commensalism
MBOYCEAEOT
What does this illustrate
Partitioning of resources
The fungus retains water and takes up minerals.
The algae provides carbohydrates and other organic nutrients as the result of photosynthesis.
What type of relationship exists between fungus and algae?
mutualism
Growing
Species
Biodiversity
200
Soil Agriculture
Movie
Quotes
100
500
What could have caused the reindeer population to overshoot the carrying capacity?
Predator removed from ecosystem
What growth pattern do species who reproduce quickly and have a short life span have?
R- selected
What determines the carrying capacity of a species?
Abundance of most limited resource
What caused the population of reindeer to crash?
Depletion of resources
Which type of species has this growth curve
R- selected
Name one human activity that has caused extinctions
HIPPO
Biodiversity hot spots are recognized by?
# of species they contain?
What are the three types of biodiversity?
Genes, species, ecosystems
Why was the cane toad introduced to australia?
Biological control
Name one type of plant that releases allopathic toxins?
Honeysuckle or black walnut
How is sand, clay, and silt classified?
By their size
What is the most important factor that will determine if a soil will hold water well
Size of their particles
What two factors determine water holding capacity?
Infiltration rate and capillary effect
What is the strong attraction between water molecules and soil causes water to be drawn upward from the water table (opposite of gravity)?
Capillary Action
What is the measure of how fast water passes through the soil?
Soil permeability
Which two plants are grown in more farms than any other plant
Corn and soy beans
Which mineral promotes well developed roots and improves color and flavor of fruits
Potassium (K)
What pH of soil do plants grow best in?
7
Which layer of soil is important in agriculture?
Top soil (horizon A)
What negative human health affect can occur by giving livestock antibiotics?
Antibiotic resistance
Yes. Well, I-I don't know. Sometimes it would stop raining long enough for the stars to come out... and then it was nice.
It was like just before the sun goes to bed down on the bayou.
There was always a million sparkles on the water... like that mountain lake. It was so clear, Jenny, it looked like there were two skies one on top of the other. And then in the desert, when the sun comes up, I couldn't tell where heaven stopped and the earth began. It's so beautiful.
Forrest Gump
There's plenty of money out there. They print more of it every day. But that ticket? There are only five of them in the world, and that's all there's ever going to be. Only a dummy would give this up for something as common as money. Are you a dummy?
Charlie and the Chocolate Factory
I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock them up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess
I just miss my friend.
The Shawshank Redemption
Well, yes, ma'am, I do... I mean, I got everything I need right here with me. I got air in my lungs, a few blank sheets of paper. I mean, I love waking up in the morning not knowing what's gonna happen or, who I'm gonna meet, where I'm gonna wind up. Just the other night I was sleeping under a bridge and now here I am on the grandest ship in the world having champagne with you fine people. I figure life's a gift and I don't intend on wasting it. You don't know what hand you're gonna get dealt next. You learn to take life as it comes at you... to make each day count.
Titanic
I don't know where I am... I don't know what's going on. I think I lost somebody but I, I can't remember... and I can't remember...
Finding Nemo
Yes. Well, I-I don't know. Sometimes it would stop raining long enough for the stars to come out... and then it was nice. It was like just before the sun goes to bed down on the bayou. There was always a million sparkles on the water... like that mountain lake. It was so clear, Jenny, it looked like there were two skies one on top of the other. And then in the desert, when the sun comes up, I couldn't tell where heaven stopped and the earth began. It's so beautiful.
Forrest Gump
Well, yes, ma'am, I do... I mean, I got everything I need right here with me. I got air in my lungs, a few blank sheets of paper. I mean, I love waking up in the morning not knowing what's gonna happen or, who I'm gonna meet, where I'm gonna wind up. Just the other night I was sleeping under a bridge and now here I am on the grandest ship in the world having champagne with you fine people.
I figure life's a gift and I don't intend on wasting it.
You don't know what hand you're gonna get dealt next. You learn to take life as it comes at you... to make each day count.
Titanic
