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AP Bio: Unit 1: Cells & Molecules
Transcript of AP Bio: Unit 1: Cells & Molecules
A way to think
A body of knowledge
Notes on the "Scientific Method"
Reductionism: Complex Simple
Let Us Begin...
Is a thing just the sum of it's parts?
Each level of organization emerges from the interactions of the components of the level beneath
2 Major Modes of Scientific Thought
A Generalized System
To understand systems, models are necessary.
The complexity of models is inherently limited.
How Can We Define Life?
The Fundamental Unifying Theory of Biology
The world is very old
Life's Three Domains:
Different Energy sources for different organisms
The fundamental units of life
Why is Science* so Important?
* And technology, engineering and math
Science = Passion
Science = Progress
Science = Hope for the Future
Top row: Merit-Ptah, Archimedes, Aristotle, Ibn al-Haytham, Leonardo da Vinci, Galileo Galilei, Johannes Kepler, Antonie van Leeuwenhoek, Isaac Newton;
Second row: Carl Linnaeus, James Hutton, Antoine Lavoisier, John Dalton, Robert Brown, Michael Faraday, Charles Darwin, Ada, Lady Lovelace, Gregor Mendel;
Third row: Louis Pasteur, Lord Kelvin, James Clerk Maxwell, Nikola Tesla, Ellen Swallow Richards, Max Planck, Ernest Rutherford, Marie Curie, Albert Einstein;
Fourth row: Max Born, Niels Bohr, Erwin Schrödinger, Linus Pauling, Enrico Fermi, Werner Heisenberg, Paul Dirac, RDML Grace Hopper, Alan Turing;
Bottom row: Hedy Lemarr, Richard Feynman, Rosalind Franklin, E. O. Wilson, Carl Sagan, Jane Goodall, Richard Dawkins, Stephen Hawking, and Neil deGrasse Tyson.
Unit 8: Ecology
Unit 1: Cells and Molecules
Unit 2: Transport
Unit 4: Energy
Unit 3: Communication
Unit 5: Reproduction
Unit 6: Genetics
Unit 7: Evolution and Diversity
Moves an organism away from a homeostatic set point.
Moves an organism towards a homeostatic set point.
Unit 1: Cells & Molecules
Organic Chemistry is the chemistry of carbon
Based on its electron configuration, how many covalent bonds will carbon form?
Carbon compounds have three basic shapes
Different pattern of bonds
Arrangement of atoms around a carbon - carbon double bond
Compounds with asymmetric carbon atom
Non-superimposable mirror images
Using the bags of molecular models, construct a model of C H
Carbon is black
Hydrogen is white
Error bars are a graphic representation of variability in the data.
Error bars can represent range, standard error, or standard deviation.
Standard Deviation Formula:
standard deviation shows how much variation or "dispersion" exists from the average (mean)
Standard Error Formula
Standard error represents how well the sample mean approximates the population mean
s= standard deviation
n= number of values
For student-directed labs this year, each group will create a presentation
Format of the presentation is your choice
One group will be chosen at random to present each lab
Include the names of your lab group
Presentations must include the following items:
Why are we doing this lab?
How does this relate to the unit?
What is the major question being asked?
DO NOT change your hypothesis after collecting data
What is your hypothesis?
What results do you predict?
Choose the best way to represent your data
Look for trends and explain
Perform any required statistical analysis
Sources of Error
Factors beyond your control that may effect the outcome of your experiments
Do not need to all be original
What do your data mean?
How do they relate to the overall topic?
Any questions from the handout should be addressed here
List of procedures
Pictures of screens taken with iPad
A poker-dealing machine is supposed to deal cards at random, as if from an infinite deck.
In a test, you counted 1600 cards, and observed the following:
Are the suits are equally likely?
Are these discrepancies too much to be random?