ap biology ch.1. why is ap biology the best class ever?? what you need to know about: the class the...
TRANSCRIPT
Why is AP biology the best class ever??• What you need to know about:
• The class• The test• Understanding the scope and relativity
The test
• 65 multiple choice questions
• 4 short answer questions
• 4 open response questions with multiple sub-questions
Topics
• Chemistry
• Cells
• Energy
• Genetics
• Evolution
• Plants and animals: anatomy and physiology
• Ecology
hierarchy
• Atoms- molecules – organelles – cell – tissue – organ- organ system – organism – population – communities – ecosystem - biosphere
• Emergent properties…as climb the hierachy• Cell is more than sum of it’s parts• Due to arrangement and interactions of
parts• Examle: brain injury: all parts still present,
but does NOT work properly
Hierarchy• Tissue: similar cells with similar
function
• Organ: mult. Types of cells with complex function
• Organ system
• Organism
• Population: all individuals of 1 species in 1 area
• Community: all living things in 1 area
• Ecosystem: all living and non-living things in 1 area
Activities of life
• Cell is the lowest level capable of all activities of life• Growth• Reproduction• Response to stim• Regulation• Energy processing
Cell theory
• Cell Theory:• Schleiden and Schwann• All living things consist of cells• All cells come from other cells
Regulation
• Feedback mechanisms
• Negative feedback: most common• The output or product of a process
(negatively) regulates that very process
• Positive feedback• Product of a process positively
enhances the process
Evolution
• Introduced by Charles Darwin in the book
• The Origin of Species• Current species arose from a succession
of ancestors• Descent with modification: Natural
selection• Natural environment “selects” for the
propagation of certain traits
Data
• Data: recorded observations• Items of information on which scientific
inquiry is based.
• Qualitative: recorded descriptions • (color of leaves)
• Quantitative: numerical information
Scientific method
• Hypothesis: educated supposition of what will happen when certain changes are made.
• Experimental design: variable, control
• Data collection: will there be qualitative (pics) or quantitative
• Format results: graphs
• Conclusion: what does it mean