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What is a polymer?
a large molecule made of many smaller, repeating units called monomers linked together in long chains
What is the basic unit of life?
the cell
What is the focus of biology?
to study living organisms, their interactions with one another and their environment
Who proposed the theory of natural selection?
Charles Darwin
What is an isomer?
a molecule that shares the exact same chemical formula as another molecule but has a different arrangement of atoms
What is homeostasis and why is it important for life?
Maintenance of internal conditions despite environmental changes outside the system
Keeps body's internal environment stable and safe
What are the 3 domains?
Eukarya, Archaea, Bacteria
What are Van Der Waals Interations?
weak attractions or interactions between two or more molecules (in close proximity) due to the changes in electron density
What is a peer review?
Scientific process involving a blind process where scientists submit the details of their experiment, results and interpretations. Reviewers determine the merit of the work for publication.
What is a phylogenetic tree?
Diagram showing the evolutionary relationships among biological species based on similarities and differences, in genetic or physical traits
What is a hydrolysis reaction?
Breakdown of large molecules by the addition of water
What are the steps of the scientific method? (min 8)
Bonus 100pts: Who is accredited for its definition?
Make observation, Ask a question, Research, Create a Hypothesis, Test Hypothesis, Analyze results, Record Data, Make Conclusion, Report results
Bonus: Sir Francis Bacon
What are the 4 macromolecules?
1) Carbohydrates
2) Lipids
3) Proteins
4) Nucleic Acids
What is a dehydration synthesis reaction?
Formation of a larger molecule by the removal of water
What is Taxonomy?
Bonus 100: Who is the "father of modern taxonomy"?
Carl Linnaeus
List 4 characteristics shared by all living organisms
1) Order
2) Sensitivity
3) Reproduction
4) Adaptation
5) Growth and Development
6) Regulation and Homeostasis
7) Energy Processing
In which domain can you find Extremophiles?
Archaea
Define deductive and Inductive reasoning
Inductive: (Specific to General) form of logical thinking that uses related observations to arrive to general conclusion
Deductive: (General to Specific) uses general principle or law to forecast specific results
What are the properties of water that make it unique?
Universal Solvent, High Heat Capacity, High Heat Vaporization, Cohesion and Adhesion Properties
What kind of bond is in water?
Polar covalent
Give one example of a biological process where ions play an important role?
Nerve impulses, muscle contractions, pH balance, fluid regulation
How many bonds can carbon form?
4 covalent bonds
What is the purpose of a buffer?
A buffer resists changes in a system—most commonly by stabilizing the pH level in chemistry
What happens to bonds when water becomes ice?
hydrogen bonds become stable and lock into a rigid, open hexagonal crystal lattice
What are the levels of organization? (min 9)
Atoms, Molecules, Macromolecules, Organelles, Cells, Tissues, Organs, Organ systems, Organisms, Populations, Communities, Ecosystems, Biosphere