Transcript March 1, 2010

February 13, 2012
• STND: (7-3.4)
• OBJ: Explain how infectious diseases affect the
human body
• EQ: How do infectious diseases affect the human
body?
• FF:
• HW: Create vocabulary cards including Disease,
Infectious Disease, Pathogen, Immune System ;
Review for Thursday's quiz
Vocabulary
• Disease--condition in which the normal function
of some part of the body is disturbed
• Infectious disease – diseases that can be passed
from one organism to another, are caused by
pathogens
• Pathogen – tiny organisms that cause disease
examples include bacteria, viruses, fungi, and
protists
• Immune system – responsible for distinguishing
one pathogen from another and responding to
the correct type
Essential Content
Infectious diseases are caused by tiny organisms called
pathogens.
· These pathogens can be bacteria, viruses, fungi, or protists.
· These pathogens can come from another person, a
contaminated object, an animal bite, or the environment.
· The immune system is responsible for distinguishing between
the different kinds of pathogens and reacting to each
according to its type.
· Once a pathogen has entered the body, it works by damaging
individual cells within the organs or in some cases attacks
an entire body system.
How Are Pathogens Spread?
• Pathogens can spread through contact with an
infected person; soil, food, or water; a
contaminated object; or an infected animal.
Defending Against Pathogens
• Your body’s first defense against pathogens is
your skin.
• White blood cells, which travel through the
body in the blood are capable of recognizing
and destroying viruses.
• You can avoid infections by washing your
hands with soap before eating and after using
the bathroom.
Extend
• http://www.cdc.gov/
• http://science.education.nih.gov/supplements
/nih1/Diseases/activities/activity4.htm
Smithers thinks that a special juice will increase the productivity of workers. He
creates two groups of 50 workers each and assigns each group the same task (in
this case, they're supposed to staple a set of papers). Group A is given the special
juice to drink while they work. Group B is not given the special juice. After an
hour, Smithers counts how many stacks of papers each group has made. Group A
made 1,587 stacks, Group B made 2,113 stacks
Smithers thinks that a special juice will increase the productivity of workers. He
creates two groups of 50 workers each and assigns each group the same task (in
this case, they're supposed to staple a set of papers). Group A is given the special
juice to drink while they work. Group B is not given the special juice. After an
hour, Smithers counts how many stacks of papers each group has made. Group A
made 1,587 stacks, Group B made 2,113 stacks
Smithers thinks that a special juice will increase the productivity of workers. He
creates two groups of 50 workers each and assigns each group the same task (in
this case, they're supposed to staple a set of papers). Group A is given the special
juice to drink while they work. Group B is not given the special juice. After an
hour, Smithers counts how many stacks of papers each group has made. Group A
made 1,587 stacks, Group B made 2,113 stacks
Smithers thinks that a special juice will increase the productivity of workers. He
creates two groups of 50 workers each and assigns each group the same task (in
this case, they're supposed to staple a set of papers). Group A is given the special
juice to drink while they work. Group B is not given the special juice. After an
hour, Smithers counts how many stacks of papers each group has made. Group A
made 1,587 stacks, Group B made 2,113 stacks
Smithers thinks that a special juice will increase the productivity of workers. He
creates two groups of 50 workers each and assigns each group the same task (in
this case, they're supposed to staple a set of papers). Group A is given the special
juice to drink while they work. Group B is not given the special juice. After an
hour, Smithers counts how many stacks of papers each group has made. Group A
made 1,587 stacks, Group B made 2,113 stacks