Bio Quiz #1

Front 1

levels of organization (8)

Back 1

atoms
molecules
cells
organisms
poplations
community
ecosystem
biosphere

Front 2

population

Back 2

a group of the same type of organisms living in the same area

Front 3

community

Back 3

all the different species of living things in one area

Front 4

ecosystem

Back 4

collection of all living and nonliving members of a codependent area

Front 5

biosphere

Back 5

the part of earth that supports life

Front 6

characteristics of life (8)

Back 6

1. living things are organized and made of cells
2. grow, develop, and die
3.maintain organization by taking nutriends and energy from the environment
4. respond to stimuli
5. maintain homeostasis
6. reproduce and pass on their organization to their offspring
7. evolve
8. members of an ecosystem

Front 7

homeostasis

Back 7

tendency of a system to maintain constancy by a coordinated response to any change

Front 8

3 domain classification system

Back 8

1. bacteria
2.archaea
3. eukarya

Front 9

scientific method

Back 9

observation, hypothesis, deductive reasoning (if, then), experiment/test, observation... supported/falsified hypothesis

Front 10

good hypothesis (4)

Back 10

1. falsifiable
2. simple
3. testable
4. repeatable

Front 11

hypothesis

Back 11

educated guess

Front 12

theory

Back 12

very well tested, not disproven

Front 13

types of biologists

Back 13

experimental, naturalistic

Front 14

deontological ethic

Back 14

act is judged by the righness or wrongness of the act itself (not its outcome)

Front 15

utilitarian

Back 15

rightness or wrongness of an act is judged on its consequences

Front 16

atom

Back 16

fundamental building block, unit of matter

Front 17

electrons

Back 17

negatively charged subatomic particle fond in orbitals around the nucleus of an atom

Front 18

nucleus

Back 18

core of an atom, contains protons and neutrons

Front 19

protons

Back 19

positively charged particles found in the nucleus of all atoms

Front 20

atomic number

Back 20

number of protons in nucleus

Front 21

element

Back 21

collection of identical atoms

Front 22

octet rule

exceptions

Back 22

atoms tend to react with each other in order to achieve a full outer orbital (8 electrons)

exceptions: H and He (only 2 electrons in outer shell)

Front 23

ion

Back 23

atom thath carries a charge b/c it has an unequal number of protons and electrons

Front 24

ionic bond

Back 24

strong mutual attraction of two oppositely charged atoms (Na + Cl = NaCl)
*1st and 7th columns*

Front 25

molecule

Back 25

a group of two or more atoms joined by a chemical bond

Front 26

compound

Back 26

type of molecule that has atoms of more than one element

Front 27

covalent bond

Back 27

stronger than ionic bonds; two atoms share electrons; single/double/triple bonds occur

Front 28

polarity

Back 28

separation of charges in a molecule into distinct positive and negative regions

Front 29

hydrogen bond

Back 29

weak

Front 30

water's importance (4)

Back 30

1. acts as a solvent- pulls bonds apart (mostly ionic)
2. temperature stability
3. solid is lighter than water, floats
4. displays cohesion

Front 31

solvent

Back 31

liquid that can dissolve other substances

Front 32

solute

Back 32

dissolved substance

Front 33

hydrophilic

Back 33

water loving, charged, dissolve well in water

Front 34

hydrophobic

Back 34

water fearing, uncharged, don't dissolve

Front 35

salt

Back 35

compounds that dissolve easily in water and release ions other than H+ and OH- (hydroxide)

Front 36

cohesion

Back 36

molecules resist separating from each other due to the hydrogen bonds holding them together = surface tension