chapter 1 biology

8/8/2019 Chapter 1 Biology

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Why are some types of flowers more colorfulthan others?

Why do elephants have trunks?Where do babies come from?How do whales live in the sea without gills?



At the end of this lesson, Students should beable to:state what is the study of biologyexplain the importance of the biologylist different fields in the study of biologylist careers that related to biology

State various ways in studying biology



Introduction to Biology



Biology comes from two Greek words:Bios ² lifeLogos- study

Scientific study of living things as well as how theyinteract with each other and their surroundingsTell about the structure and function of living things

Very wide scope



1) Living things are important to each other2) Understand the interaction to attain

equilibrium3) Gain understanding of how human body

functions4) Finding cures5) Save endangered species6) Environment management



Made up of cellsHighly orderedObtain and use chemicals substances andenergy from environmentPosses unique genetic materialsReproduces themselves

Develop and growRespond to stimuliExcreteAdapted to environment



Aimunderstand more about life process so thathuman beings and other organism can live

efficiently in peace and harmony



virusvirology

bacteriabacteriology

fungimycology

plantsBotany

animalsZoology O rganism structureAnatomy

tissuesHistology C hemical substances in biologyBiochemistry

inheritanceGenetics

environmentEcology

microorganismmicrobiology



Biotechnologists

apply biotechnological knowledge and techniques or useliving organism to develop useful products

Modify genetic materials in living cells to make themproduce new substances or perform new products

Environmental engineers

apply the principles of biology and chemistry to providesolutions to environmental problems

Involved in water and air pollutioncontrol, recycling, waste disposal and public health issues



Health care biologist

radiographers, occupationaltherapist, pharmacies, physiotherapists, nurses, opticians and doctors

Agriculture and forestry

livestock farms, forest research institutes andplantations

Marine and freshwater

research into fish farming and marine conservation



Experiment- encourage student to find outthings by themselves and to see if their ideasis correct

Group discussion-sharing and discussing withfriends, can consolidate what we have learnteffectively

Group project-train to be

analytical, systematic and organized



Use of technology-powerful tools that canenhance the learning

Field trips-external resources make learning

more interesting and meaningful

Scientific method-adapted in the study ofbiology



1. A branch of biology concerned with thestudy ofnutrition, respiration, reproduction and

excretion .Another effective way of study biology

2. Visiting this place is a good way of studybiology

3. Botany is the study of?4. SARS is spread by?

This group of organism is a good example ofmicroorganism



5. A person who studies insects .6. A Greek word that is a part of the word

biology7. Others name for a doctor .8. A study of tissues is called?9. cell>_____>organ>system10. This person usually works in a operating

theatre

11. Planet earth is the largest______ .



By observing phenomenon and identifyingscientific problem which interest usUse 5 sense in observationPose question relatedProcess known as stating problemEx: heartbeat rates



General statement about the observationNot yet been provenTest by experimentAllow to make prediction



To reveal the truth of the resultsWhether to reject or accept hypotheses

Includes:identifying methodologies- recognizedprocedure, equipment, materialssampling techniques ² get data fromexperimentidentifying variables ²manipulated, responding and fixed variables



3 types of variables:

a ) manipulated

purposely set or change, control atdifferent values to test hypothesisfactor that causes an event



b) Responding

outcome of an experimentresults due to the changes in manipulatedvariablescan be observed, measured, record-data



c) Fixed

all other variables that could influences theresultskept constantex: size, ambience



Result of an experiment refer as data

Obtain by means observation andmeasurement

Accuracy-important

Organized and presented in various form-table, charts, graph



0

1

2

3

4

5

6

Category 1 Category 2 Category 3 Category 4

Series 1Series 2Series 3



1 st Qtr

2nd Qtr3rd Qtr4th Qtr



Make sense out of the information obtain

May include calculations

Determine relationship between manipulated andresponding variables



Logically and precisely so that the study donewould give beneficial meaning

Ex: If the data shows that the time taken toheal the wounds on rats is shortened after

treatment with Aloe vera

sap is effective onhuman beings as well?



Whether support or refute the hypothesis

RationalIf hypothesis rejected, does not meaninvestigation was failedCan formulated and test new hypotheses



Present the resultsBased on finding and must be clear andaccurate, truthfully and objectively

i. objectiveii. Problem statementiii. Hypothesisiv. Variablesv. Materials and apparatus

vi. Techniquevii. Procedureviii . Resultsix. Discussionx. conclusion



o Systematico Carefullyo Cooperativeo Honestyo Accuracyo Rationalo

Responsibilityo Accountability

chapter 1 biology

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