Transcript Unit 5 Microbiology Day 7 2016-2017 Parasites and Epidemicsx

Unit 5: Structure and Function of Living Organisms
Day 7: Fungi/Parasites/Epidemics and Pandemics
2-21-17
1. Take out your ABCD formative assessment card.
2. Science starter- Copy: Which of the following
explain why fossil fuels (coal, oil, and natural gas)
are still the primary energy resources used
worldwide: (may be more than one answer)
*they are cheap
*they are clean/help the environment
*they are easy to transport to power plants
*they are efficient
*extracting them from the Earth does not harm the
environment or ecosystems
*they are nonrenewable
ABCD card- Do you remember…
1.A scientist finds the bones of a dinosaur. What
could help the scientist determine the approximate
age of the dinosaur bones? A) the birds living in
the area of the bones, b) the weather conditions
in the area of the bones, c) the kinds of trees
living in the area of the bones, d) the index
fossils in the area of the bones
2.Which best describes how ice cores are important
to the study of geologic history? A) they show
unconformities, which signal changes in deposition,
b) they hold index fossils, which are used to date
the different ice cores, c) they contain evidence
showing changes in the atmospheric composition
over time
Plan for the Day
• Read about blood in preparation for a
lab tomorrow.
• Set up page 9 of flipbook –
Epidemics/Pandemics/Vectors/Carriers
• Review Fungi and Parasites
Homework
•1. Finish the worksheet on
“Blood” in preparation for
tomorrow’s lab.
•2. Study guide due Friday.
•3. Quiz Friday.
•*Extra credit if you do page
9 in the flipbook tonight – Ppt
on my webpage.
Essential Question: Page 7
What are characteristics of
parasites?
Vocabulary
• 18. Parasite: Organisms that live in or on
another organism known as a host;
• *Steal nourishment from the host;
*Harm/weaken the host but don’t kill it
(at first)
• *worms (tapeworm), lice, fleas, ticks,
flies
• 19. Adaptation: Any body structure,
function, or behavior that helps an
organism survive in its environment.
• Ex. Tapeworm has no digestive
system/absorbs nutrients through its skin
Guinea Worm-gets in
through the soles of the
feet…wear shoes!
Tapeworms, hookworms,
other worms
Blood-sucking things
Trypanosoma worms-cause African
sleeping sickness
• Examples of Parasitic Diseases
• 1.Malaria
(Plasmodium-a protist)
Vector: Mosquito
• 2.African Sleeping Sickness
(Trypanosoma worms)
• 3.Giardia• a protist
Vector: Tsetse
fly
Contaminated water (no vector)
• 4.Tapeworm
• 5.Chagas Disease-Vector• Triatomine bugs (kissing bugs)
Malaria is a world health concern.
It is caused by
a parasite! The parasite is a protist that lives in
water; mosquitoes lay eggs in/mature in water. They
can pick up the protist and transmit it to a human
when it bites them. OR, a “healthy” mosquito can bite
an infected person and carry it to another person
infecting them. Mosquitoes are NOTORIOUS
vectors! Eliminate standing water, and you cut down on
the mosquito population.
• You MUST know this. It is specifically mentioned in the
science standards from the state.
• Malaria is a parasitic disease carried by mosquitoes (vectors).
• It is NOT caused by a virus, bacteria, or fungus.
• Malaria is caused by a PARASITE!!!!!!!
• Any questions???
Treatment & Prevention of
Parasitic Diseases
• Treatment:
1. Antibiotics
2. Ultraviolet Radiation
• Prevention:
1. Pasteurization
2. Cooking foods well
3. Vaccines (malaria)
4. Wearing shoes
5. Avoid non-chlorinated water
20. Disease Outbreak:
example
Def. and
21. Epidemic: Def. and ex.
22.Pandemic: Def. and 2 examples
When does a Flu Pandemic Occur?
23. Vector – Def. and 2 examples
3 Past Influenza Epidemics/#dead
1.
2.
3.
24. Carrier – Def. and 2 examples
9. Epidemic/Pandemic/Vectors and Carriers
Gave students the worksheet
“What is Blood” as a
background reading for the
Lab “Disease Fighters” which
we will do tomorrow.
Vocabulary
• 20.Disease Outbreak: happens
when a disease occurs in greater
numbers than expected in a
community or region, or during a
season.
Vocabulary Continued
• 21.Epidemic: an illness or healthrelated issue that’s showing up in
more cases than would normally be
expected.
*Ex: 2003 (SARS) severe acute
respiratory syndrome killed 800 people
Vocabulary
• 22. Pandemic: a disease
outbreak/epidemic that affects an
extremely large number of people and is
geographically widespread (can be
global).
*can occur in waves-not all of world
affected at once
Ex. Black Plague
Ex. HIV/AIDS
FYI -Past Influenza
Pandemics
• Spanish Flu (1918); 40-50 million deaths.
• Asian Flu (1957); 2 million deaths.
• Hong Kong Flu (1968); 1 million deaths
Disease Transmission
23.Vector: an animal that transmits a
pathogen from the host organism to a
new organism. Examples: mosquitoes
(malaria/Zika), fleas (Black Death/
Plague), ticks (Lyme’s Disease), raccoons
& bats (Rabies), monkeys (Ebola)
24. Carrier – A person who is carrying a
pathogen/infectious disease in his/her
body, but not showing any symptoms of the
disease; can transmit the pathogen to
other individuals who may get the disease.
Ex. “Typhoid Mary” carried typhoid and
infected many people while working as a
cook. She didn’t exhibit any symptoms.