1 biology the study of life!. 2 what is biology? biology is the study of all living things living...
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What is Biology?What is Biology?
BiologyBiology is the study of all is the study of all living thingsliving things
Living things are called Living things are called organismsorganismsOrganisms include bacteria, Organisms include bacteria, protists, fungi, plants, & protists, fungi, plants, & animalsanimals
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All Living Things Share All Living Things Share Common Common
CharacteristicsCharacteristics1.1. CellsCells
2.2. ReproductionReproduction
3.3. Metabolism Metabolism
4.4. HomeostasisHomeostasis
5.5. HeredityHeredity
6.6. EvolutionEvolution
7.7. InterdependenceInterdependence
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Facts About CellsFacts About CellsCells are the Cells are the smallest living unitsmallest living unit of an organismof an organism
All cells contain:All cells contain:– CytoplasmCytoplasm– Cell MembraneCell Membrane– DNADNA– RibosomesRibosomes– CytoskeletonCytoskeleton
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More Cell FactsMore Cell FactsCells are complex & Cells are complex & highly highly organizedorganized
Cells have parts Cells have parts called called organellesorganelles that that do different jobsdo different jobs
e.g. Chloroplasts in e.g. Chloroplasts in plants make sugarsplants make sugars
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Organisms are Grouped by Organisms are Grouped by their Number of Cellstheir Number of Cells
Unicellular OrganismsUnicellular Organisms– Living Organism Made Up Of Living Organism Made Up Of
One CellOne Cell
Multicellular OrganismsMulticellular Organisms– Living Organism Made Up Of Living Organism Made Up Of
Many, Specialized CellsMany, Specialized Cells
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ReproductionReproductionprocess by which organisms make process by which organisms make
more of their kindmore of their kind
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Sexual ReproductionSexual Reproduction
Involves 2 Involves 2 parentsparents
Egg fertilized Egg fertilized by sperm to by sperm to make a ZYGOTEmake a ZYGOTE
Offspring Offspring DIFFERENT DIFFERENT from parentsfrom parents
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Asexual ReproductionAsexual Reproduction
Involves a Involves a single single organism or organism or cellcell
Cell dividesCell divides
Offspring Offspring IDENTICAL to IDENTICAL to parentparent
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MetabolismMetabolism
Sum of all the chemical Sum of all the chemical reactions in an organismreactions in an organism
All All require energyrequire energy
SunlightSunlight is the ultimate is the ultimate energy for life on Earth energy for life on Earth
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MetabolismMetabolism
All living things use energy to run All living things use energy to run the process of life.the process of life.
All living things use energy to All living things use energy to grow, to move, and to process grow, to move, and to process information.information.
Examples: Photosynthesis, Cellular Examples: Photosynthesis, Cellular Respiration, Digesting foodRespiration, Digesting food
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HomeostasisHomeostasisKeeping the internal environment Keeping the internal environment of the cell or organism within the of the cell or organism within the ranges required for liferanges required for lifeStable internal conditions of pH, Stable internal conditions of pH, temperature, water balance, etc.temperature, water balance, etc.Maintaining a balanceMaintaining a balance
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HeredityHeredityThe passing of traits from The passing of traits from
parent to offspringparent to offspring
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HeredityHeredity
Gene Gene is the basic unit of is the basic unit of heredity.heredity.
DNADNA carries the genetic code carries the genetic code for all organismsfor all organisms
All organismsAll organisms contain DNA contain DNA
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EvolutionEvolutionCChange over timehange over time
Groups Of Groups Of OrganismsOrganisms (Not (Not Individuals) Change Individuals) Change Over Time In Order Over Time In Order To Survive Within To Survive Within Changing Changing Environments.Environments.Fossil recordsFossil records show show changes in groups changes in groups of organismsof organisms
InterdependenceInterdependenceorganisms are dependent on one organisms are dependent on one another and their environmentanother and their environment
EcologyEcology – – the study of the the study of the interactions of organisms with one interactions of organisms with one
another and with the non-living another and with the non-living part of their environmentpart of their environment
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