Welcome to Osmans Webfolio

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Welcome to Osmans Web-folio Learning Tutorial
Unit I- Lifes Building Blocks
Unit II-Energy Matter for Life
Unit III-Continuity of Life
Unit IV-Interactions Interdependence
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Unit I-Site Map
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Topic 1-Simple Organisms
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Key Ideas-Topic 1
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Key Idea 1- Organisms Possess Many Similarities

• -All living organisms have DNA(genetic code for
  life)
• -All living organisms perform the same metabolic
  activities.(life processes include nutrition,
  excretion, respiration,transport.)
• -All living creatures fill a niche in the
  environment.(Their role in the environment)
• -All organisms have cells to perform metabolic
  activities.

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Key Idea 2-Simple Organisms lack a cellular
organization and can either be prokaryotic or
eukaryotic.

• Prokaryotic
• -Has a very primitive cell structure.-They lack
  organelles.(Monerans which includes bacteria)

• Eukaryotic
• -Cells that have a nucleus with DNA and
  organelles inside.(ex-paramecium)

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Antibacterial Soaps

• Do they really work?

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Antibacterial Soap-Introduction

• In this lab you will undergo an experiment to
  determine whether Dial or Dermacare will work
  better in fighting bacterial growth in a culture
  dish made by chocolate slim fast and jello. You
  may use any two antibacterial soaps to determine
  which works better In killing bacteria.

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Applying the Scientific Inquiry Process
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Problems to Investigate

• What kind of antibacterial soap works best in
  inhibiting bacterial growth?
• How many species will grow in the culture dish?
• How long will it take the bacteria to build a
  resistance to the soaps?

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Background Information1-Research

• Research on Antibacterial Soaps
• -Bacteria are single-celled organisms
• -They are in the monera kingdom
• -Bacteria survive best in warmer environments.
• -they are prokaryotic
• -they reproduce asexually
• -

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Background Info2-Prior Experiments

• -many species can grow on one dish
• -bacteria build a resistance to soap after a
  while
• -species compete for space in the culture dish
• -waterless soap doesnt work as well at
  inhibiting bacterial growth
• -

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Hypothesis

• I think that Dial hand soap will work best in
  inhibiting bacterial growth in the culture dish.
• I also think that the bacteria in both culture
  dishes will resistance to the soaps
• Therefore I think we will see several different
  species

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Experimental Design

• Materials
• Procedures
• Control and Variables
• Safety Procedures

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Materials

• Three culture dishes made from jello and slim
  fast
• A source of bacteria(soil or your finger)
• Some plastic wrap
• Q-tips(cotton swabs)
• Labels
• Markers
• Rubber bands
• Two different kinds of antibacterial soaps

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Procedures

• -make three culture dishes from jello and slim
  fast
• -rub soil on top of all three
• Put one type of antibacterial soap in one dish
  with a q-tip
• Put the other soap in the other dish.
• Label the three different dishes.(control,cupA,and
  cupB)Place the plastic wrap over the three
  dishes.
• Observe the cups over 7 days and write down what
  you see.

• -

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Controls Variables

• CONTROL
• The three culture dishes are the control.
• Also the source of
• bacteria is a control.

• VARIABLE(s)
• A variable is the two different antibacterial
  soaps.

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Data ObservationsTable 1 Surface Area
Population Growth
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Data ObservationsTable 2 of Species
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Data ObservationsTable 3Species Competition
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Conclusions-Graph 1 Surface Area Population Growth

• All in all the Dermacare anti bacterial soap
  worked best in inhibiting bacterial soap in the
  culture dish.My hypothesis was correct. Dermacare
  did inhibit bacterial growth the best. The
  bacteria couldnt adapt to the soap as fast as
  the others.Natural selection is easily because
  the bacteria had to change to the soap and the
  ones that werent immune died.Natural Selection
  is when nature selects what lives and doesnt
  survive.Creatures who are best adapted to
  survive,like the bacteria in the culture
  dish,will not die.

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Conclusions-Graph 2 Number Of Species
In the control and Dial dish two species grew. In
the dermacare dish one kind of bacteria grew.The
bacteria were able to reproduce so rapidly
because the culture dish had a lot of nutrients
from the slim fast.Asexual reproduction allows
bacteria to change over time because they can
mutate their genes and pass it on to their
offspring.
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Conclusions-Graph 3 Species Competition

• There were two species in the control and Dial
  dish.There was only one after seven days in the
  Dermacare dish.On the first day the white
  bacteria was most abundant.At the last day the
  white species was still most abundant, but the
  black species was catching up. There was
  competition between the species because the rate
  of population growth of each species kept
  changing

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Repeated Trials

• View similar experiments by exploring other
  web-folios on our student showcase link.

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Related Topics on Bacteria

• 5-Customizing Bacteria -Genetic Engineering
• 6-Bacteria in Animal Nutrition Digestion
• 7-Using Bacteria for Environmental Problems

• 1-The Process of
• Evolution
• 2-Unity Diversity A System for Classification
• 3-Bacteria
• Natural Selection
• 4-Ecological Significance of Bacteria

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Topic 1- The Process of Evolution
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Evolution Defined

• Evolution is how an organism changes over time to
  better adapt to its environment.For example some
  iguanas adapted over time to be able to go into
  the water.Natural selection is when nature
  selects what lives and dies in an area.When an
  organism is introduced to a new environment it
  must change to fit the environmental needs.

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Competition
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Genetic Variation
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Topic 2- Unity Diversity A System for
Classification
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Genus Species
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Kingdoms of Life
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Topic 3- Natural Selection
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NATURAL SELECTION DEFINED
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Examples of Natural Selection

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Key Ideas of Natural Selection

• -
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• -

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Topic 4- Ecological Significance of Bacteria
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Recycling of Materials
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Bacteria as Decomposers
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Topic 5- Genetic Engineering of Bacteria
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Genetic Engineering
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Recombinant DNA
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Examples of Using Recombinant DNA to Customize
Bacteria

• -
• -

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Topic 6-Bacterias Role in Nutrition Digestion
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The Importance of Nutrition Digestion
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Bacterias Role in Nutrition Digestion
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Topic 7-Bacteria to Solve Environmental Problems
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Bio Remediation
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Uses of Bio-Remediation
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Unit II- Energy for Life

• Coming Soon!

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Unit III- Continuity of Life

• Coming Soon!

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Unit IV- Interactions Interdependence

• Coming Soon!