Chapter 1 and 2 Flashcards
(23 cards)
8 Characteristics of Living Organisms
- Reproduction
- Respond to stimuli
- Need energy
- Adapt
- Cellular
- Has Order
- Growth and Development
- Homeostasis (keeps itself stable)
Levels of Biological Organization
- Atom
- Molecule
- Cell *
- Tissue
- Organ 6. Organ system 7. Organism
- Species
- Population
- Community
- Eco system
- Biosphere
3 Domains
BAE
Bacteria
Archaea
Eukaryotes
Sequence of Classification Categories
(big -> small)
Don King Philip Comes Over For Good Soup
domain, kingdom, class, order, family, genus, species
Scientific Method
OHEDC
observation, hypothesis, experiment, data, conclusion
Inductive Reasoning
Drawing conclusions with scientific method
Deductive Reasoning
Drawing conclusions with own reasoning
A Theory
A collection of related hypothesis that have shown to be true after extensive testing
Charges of Protons, Neutrons, Electrons
Protons +
Neutrons (no charge)
Electrons -
12 6 C
12 : atomic mass
6 : atomic number
C : element symbol
How to find atomic weight/mass?
of protons + # of neutrons
Atomic number is the same as…
number of protons
number of electrons
Ion
- any atom or group of atoms that bears one or more positive or negative electrical charges
-an atom with either + or - charge`
If there’s more protons than electrons then….
Positively charged
Isotope
An atom with the same atomic # (protons) but different atomic weight and exists in nature in more than one form
Radio Isotope
Unstable
Number of Neutrons?
Atomic Weight - Atomic #
Hydrogen Bond
weak bond between molecules (like in water)
Covalent Bond
share electrons
ex) Oxygen and Hydrogen in water
Ionic Bond
transfer an electron from one atom to another
Compound
Different atoms bonding together
Molecules
Similar atoms bonding together
Electrolytes
Na +
K +
Cl -
PO -3
Ca 2+
HCO3 -
H+
OH -
