1-3 Flashcards
List levels of biological organization
Molecule Organelle Cell Tissue Organs and systems Organism Population Community Ecosystem Biosphere
Molecule
2 or more atoms
Organelle
Functional component of cell
Cell
Unit of structure and function
Tissue
Group of cells with special function
Organ
Body part with specific function
Population
All of a species in area
Community
Organisms in ecosystem
Ecosystem
All living and no living in area
Biosphere
All life on earth and where it exists
Prokaryote vs eukaryotes:
Pro: No nucleus Smaller Lacks organelles Euk: Nucleus Larger Specialized organelles
Inductive
Specific to general
Deductive
General to specific
Model organisms
Fruit fly Arabidopsis Ecoli C elegans Mouse
What makes a good model organism?
Short generation time
Smalls genome
Scorable phenotypes
Many offspring
Radioactive isotope
Different number of neutrons, unstable tendency to decay spontaneously
Energy
The capacity to do work, make change
Types of energy
Potential and kinetic
Covalent
Sharing
Ionic
Transfer
Hydrogen
Positive hydrogen attracted to partial negatives
Cohesion
Water holds water
Adhesion
Water clings to another substance
Molarity
Moles of solute per liter
Molality
Moles of solute per kg
Buffer
Weak acid or base to minimize changes in H+ concentrations
