Transcript Chemicals_in_Tobaccox

Chemicals in
Tobacco
WHAT’S THAT PICTURE?
– Small Groups
– 9 Pictures
– 1 Minute for Every Picture
– Write down everything that comes to
mind
ACETONE
– Definition: A strong smelling, clear liquid
– Example: Nail Polish Remover
– Some Health Concerns have been expressed about the
effects of Acetone. For example, some sources suggest
that exposure to moderate-to-high amounts of acetone
can irritate the eyes and respiratory system, and make
people feel dizzy.
AMMONIA
– Definition: a colorless gas with a characteristic strong smell.
– Example: cleaning supplies
– Tobacco companies discovered that adding ammonia to the
cigarette manufacturing process helps convert bound
nicotine molecules in tobacco smoke into free nicotine
molecules. This process is known as “freebasing.” Similar to
the chemical process of freebasing cocaine, the end result is
an enhanced effect of the drug on the user.
BENZENE
– Definition: A colorless, flammable, toxic,
liquid.
– Example: gasoline
– Benzene is known to cause cancer, based on
evidence in both people and lab animals. The
link between benzene and cancer has largely
focused on leukemia and cancers of other
blood cells.
CADMIUM
– Definition: toxic metal
– Example: batteries
– Nausea, vomiting
– Diarrhea
– Muscle cramps
– Salivation
– Sensory disturbances
– Liver injury
– Convulsions
– Shock
– Renal failure
CARBON MONOXIDE
– Definition: a colorless, odorless toxic flammable gas
– Example: Car Exhaust
– Symptoms of Carbon Monoxide exposure may mimic
influenza and include fatigue, headache, dizziness,
nausea and vomiting, mental confusion, and rapid
heart rate. Depending on the level of Exposure,
Carbon Monoxide can be immediately fatal.
FORMALDEHYDE
– Definition: gas used to preserve.
– Example: save dead bodies
– Lab studies have shown that exposure to
formaldehyde could cause nasal cancer in rate, and
some studies of industrial workers have suggested
that formaldehyde exposure might be associated
with nasal cancer and nasopharyngeal cancer in
humans
LEAD
– Definition: naturally occurring metal.
– Example: old pencils or paint.
– Lead poisoning affects nearly every system in the body,
and may occur without noticeable symptoms. Low but
ongoing exposure over time can affect the developing
nervous systems (children are most at risk) in subtle but
persistent ways
MERCURY
– Definition: a heavy silvery-white, very poisonous metal
– Example: old thermometer.
– In adults, Mercury poisoning can adversely affect fertility
and blood pressure regulation and can cause memory
loss, tremors, vision loss, and numbness of the fingers
and toes. A growing body of evidence suggests that
exposure to mercury may also lead to heart disease.
–
TAR
– Definition: dark, thick, flammable liquid
– Example: road pavement.
– The idea was that the filter would trap harmful tars and
nicotine, but the design never worked as well as hoped.
Toxins still make it through and into the smoker’s lungs,
exposing them to the risks of smoking-related disease.
ARE THE CHEMICALS
REALLY THAT BAD?
The
Respiratory
System
TURN AND TALK
– How does your body pull air in and push air
out?
– Where does air travel when it enters the
body?
– How does air move into your blood?
How does the Respiratory
System Work?
– The Respiratory System Video
3 Facts From the Video
– __________________________________
– __________________________________
– __________________________________
Label the Respiratory System
Label the Respiratory System
1.
7.
2.
8.
3.
9.
4.
10.
5.
11.
6.
Passage of Air to the Lungs
– Enters through the Nose/Mouth
– Goes through the Esophagus
– Passes the Epiglottis
– Enters the Trachea
– Breaks off into the Left and Right Bronchi (Enters Lungs)
– Enters Bronchioles
– Goes through Alveoli (Covered by Capillaries that exchange oxygen and carbon
dioxide)
How Breathing Works
Inhaling:
– Your diaphragm moves down and your ribcage moves up,
creating more room in your chest. This causes air to flow
into your body through the nose/mouth. The air then
moves past the epiglottis and into the trachea and
bronchi.
How Breathing Works
Exhaling:
– Your diaphragm moves up and your ribs move
down, pushing air out of your lungs. The air, now
containing carbon dioxide, moves back through
Captain Oxygen Storyboard
– Using your PowerPoint notes, please complete the
mission below.
– Healthy comics just hired you as a new comic strip writer
and artist. For your first project, you’ve been assigned to
write and illustrate a comic strip about Captain Oxygen’s
journey through the Human respiratory system.
– All 9 blanks must be filled in and the bottom lines must
be captions explaining which step in the journey Captain
Oxygen is.