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Multiplication Video http://www.youtube.com/watch?v=5Xi2Nc1UicQ * * 9.2 Bacteria Anthrax Plague Tetanus Staph Lyme Disease MRSA Bacteria are _____; living, single ... – PowerPoint PPT presentation

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Title: Multiplication Video http://www.youtube.com/watch?v=5Xi2Nc1UicQ


1
Multiplication Videohttp//www.youtube.com/watch
?v5Xi2Nc1UicQ
2
Tetanus
Lyme Disease
Plague
9.2 Bacteria
MRSA
Anthrax
Staph
3
  • Bacteria are ______________ living,
    single-celled organisms!
  • They are carried from place to place in
    _____, _________, or on the _____________ of
    objects.
  • Some can move by flicking whip-like
    _____________.

prokaryotes
air
water
surfaces
flagella
Typical Animal Cell
Typical Bacterium
Eukaryote
Prokaryote
4
  1. The genetic material of prokaryotes is not
    contained in a______________.
  2. Prokaryotes have no cell organelles other than
    _________________.

nucleus
ribosomes
Eukaryote
Prokaryote
5
  • 3. All living things must have food (energy
    source) to survive.
  • a. __________ - make their own food one of _____
    ways

Autotrophs
two
  • Using the suns energy
  • (photosynthesis)
  • Using chemical energy
  • (chemosynthesis)

6
Heterotrophs
Decomposers
  • b. _______________ - consume other organisms.
    Ex) ______________

cellular respiration
Remember, all living cells do
_____________________, which requires
___________.
Oxygen
7
B. Bacteria Shapes 1. ________________________
Rod-like (Bacillus)
8
2. _________________________
Spherical (Coccus)
9
3. ________________________
Spiral (Spirillus)
10
  • C. Reproduction - Bacteria can reproduce two
    ways
  • Asexual reproduction is accomplished through
    __________ __________.
  • a. One parent divides to produce two
    _____________ bacteria.
  • This ________ genetic diversity.

binary
fission
identical
limits
11
2. Sexual reproduction is accomplished through
_________________. a. Two parents produce
new organisms that _____________ their
genes from each parent. This
___________ genetic diversity.
conjugation
inherit
increases
12
D. Bacteria and Us Reasons to be glad bacteria
are out there! 1. Oxygen production
oxygen
a. A great deal of Earths ___________ is
produced by bacteria, and other
photosynthesizing autotrophs.
13
2. Natural recyclers a. _________________
are heterotrophic bacteria that
break down large chemicals in dead
organisms into small chemicals.
b. These chemicals are returned to the
__________ for other
organisms to use.
Decomposers
soil
14
3. Food Production pasteurization of dairy
products. a. _____________________
b. ___________________
butter
cheese
c. ____________________
d. ____________________
yogurt
kefir
15
4. Your body a. Good bacteria on your body
_____________ _____ ___________ with
bad bacteria.
compete
for
space
16
b. Good bacteria in your _________________ help
digest food.
intestines
http//player.discoveryeducation.com/index.cfm?gui
dAssetIddf103fa0-40ec-4d80-b94a-9c039db80c28
17
genetic engineering
  • c. Recall that bacteria are frequently used in
    __________________.
  • Ex) production of human insulin

18
Skin as a Barrier
  • http//player.discoveryeducation.com/index.cfm?gui
    dAssetId5f74f4b1-347a-49e3-a516-b4f24e6e7e51

19
Fun Fact!!!
5. Bacteria and Disease a. Bacteria that cause
disease make up less than ____________ of
known bacteria species.
one percent
  • The ____________ toxin produced by bacteria in
    poorly-preserved canned or jarred food, is used
    in small doses in __________ injections as a way
    to temporarily paralyze muscles.

botulism
botox
20
Dino Disease?
  • http//player.discoveryeducation.com/index.cfm?gui
    dAssetIdabbebdc3-7395-4abc-9be6-43f3e6fca5b9

21
alive
killed
  • b. Because they are _________, bacteria can be
    ____________,
  • using _______________.
  • c. Antibiotics are ________ that are typically
    produced by _________,
  • which have been competing with bacteria on
    Earth for ______________
  • of years in the worlds oldest Arms Race

antibiotics
Ex) Penicillin
toxins
fungi
billions
22
Ex) MRSA (Methicillin-resistant
Staphylococcus-aureus)
  • d. There are drawbacks to using antibiotics
  • - antibiotics can also kill the ______ bacteria
    in our bodies
  • - antibiotics can cause unwanted ____________.
  • - over-use of antibiotics can lead to the
    _____________ of
  • antibiotic-____________ bacteria which can
    withstand our
  • strongest medicines.

good
side effects
evolution
resistant
Incorrect antibiotic use kills all but the
strongest bacteria
23
Antibiotic Resistance
  • http//player.discoveryeducation.com/index.cfm?gui
    dAssetIde852a83c-8149-4d4e-8181-439511cbc0cd

24
Quiz (who was listening? ?)
  • Are bacteria alive?
  • Do bacteria cells have a nucleus?
  • What is it called when bacteria reproduce
    asexually?
  • Are all bacteria harmful?
  • Name one way that bacterial can be helpful
  • Name one antibiotic
  • Complete this sentence
  • When antibiotics are used incorrectly, they kill
    off the weakest bacteria in a sick person,
    leaving the ____________ ones to survive and
    reproduce
  • http//www.fda.gov/AnimalVeterinary/SafetyHealth/A
    ntimicrobialResistance/ucm134359.htm

25
  • http//www.fda.gov/downloads/AnimalVeterinary/Safe
    tyHealth/AntimicrobialResistance/UCM134417.wmv
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