Biol 102 Exam 1

Front 1

Scientific Method

Back 1

observation, hypothesis, experimentation, results/data, conclusion

Front 2

placebo

Back 2

sugar pill, you feel better

Front 3

nocebo

Back 3

sugar pill, you feel worse

Front 4

blinding

Back 4

patients don't know

Front 5

double blinding

Back 5

both doctors and patients don't know

Front 6

theory

Back 6

known "truths" of biology, overwhelming data that is accepted in an experiment

Front 7

cell theory

Back 7

all organisms made of cells, new cells from pre-existing

Front 8

homeostasis theory

Back 8

the internal environment of an organism stays relatively constant

Front 9

genes

Back 9

organisms contain coded info that dictates form function, and behavior

Front 10

ecosystem

Back 10

populations of organisms interact with each other and physical environment

Front 11

evolution

Back 11

all organisms have a common ancestor, but each adapted

Front 12

the characteristics of life

Back 12

all organized, require energy, reproduction, growth/development, ability to respond to stimuli, adapt/evolve

Front 13

require energy (for humans)

Back 13

ATP to power cells and tissues

Front 14

reproduction (for humans)

Back 14

mitosis/meiosis

Front 15

ability to respond to stimuli (for humans)

Back 15

behavior, overtime repetition becomes unconscious behavior

Front 16

homeostasis

Back 16

-maintenance of internal conditions to prevent fluctuation, set point

-4 parts: sensory, integrating, center, effector

Front 17

matter

Back 17

takes up space, has a mass

Front 18

protons

Back 18

-location: nucleus

-mass: 1 amu

-charge: +1 positive

Front 19

neutrons

Back 19

-location: nucleus

-mass: 1 amu

-charge: 0

Front 20

electrons

Back 20

-location: circling around the nucleus

-mass: 0.00055 amu, negligible

-charge: -1negative

Front 21

isotope (and example)

Back 21

difference in the number of neutrons, Carbon 14 will decay back to C 12 after you die

Front 22

Bohr's discovery

Back 22

-some electrons are farther from the nucleus than others

-atoms are most stable when outer shell is completely filled

-2 on the inner shells and 8 max on the outer shells

Front 23

ionic bonding (example)

Back 23

transfer of electrons from one atom to another, sodium chloride (sodium has one extra electron)

Front 24

covalent bond

Back 24

sharing of electrons, 2 types: non-polar and polar

Front 25

non-polar covalent bond (example)

Back 25

equal sharing,

- 2 electrons shared in a single covalent (H-H)

-4 electrons through double covalent (O=O)