Introduction To Bio Ni Haydee
Introduction To Bio Ni Haydee
Introduction To Bio Ni Haydee
study BIOLOGY ?
Why Study Biology?
Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
Biology is a Branch of Science
• Both an activity and body of knowledge.
• A way of understanding the natural world.
– Scientists make predictions and test those
predictions.
How is Biology studied?
Insert F01-06
Scientific Theory
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4.Reproduction and Inheritance
• All organisms produce new organisms
like themselves REPRODUCE
• Organisms transmit hereditary
information to their offspring
INHERITANCE
Copyright Cmassengale
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5. Evolution by Natural Selection/
Evolutionary conservation
– All organisms today descended from a simple
creature 3.5 billion years ago
– Some characteristics preserved – use of DNA
– Conservation reflects that they have a fundamental
role
– “Survival of the fittest”. Those that are unfit are dis
selected against.
6. Ecosystem
-Interplaying of components in an ecosystem.
-Everything is connected with everything else.
7. Diversity of life arises by evolution
– Underlying unity of biochemistry and genetics
argues for life from the same origin event
– Diversity due to evolutionary change over time
– 3 domains
•Bacteria – single-celled prokaryote
•Archaea – single-celled prokaryote
•Eukarya – single-celled or multicellular eukaryote
8. Inheritance/Molecular basis of inheritance
– Deoxyribonucleic acid (DNA)
– Sequence of 4 nucleotides encode cell’s information
– Gene – discrete unit of information
– Genome – entire set of DNA instructions
– Continuity of life depends on faithful copying of DNA
into daughter cells
9. Homeostasis
-Maintaining balance in and out of the cell condition
* Cell transport
-hypotonic, isotonic and hypertonic solutions
-Achieving constant body temperature
And many others….
FIND THEM OUT!!!!!!
STUDENT DELIVERABLE: