Exam 1 Flashcards
(122 cards)
CH1 Properties of Life
Living organisms are: made of cells complex and ordered respond to their environments can grow and reproduce obtain and use energy allow for evolutionary adaptation
CH1 Cellular Organization
atoms –> molecules –> organelles –> cells
CH1 Organismal Organization
tissues –> organ –> organ system –> organism
CH1 Population Level
population –> species –> community –> ecosystem
CH1 Deductive Reasoning
uses known facts to make specific predictions
-outcome is a testable hypothesis
CH1 Inductive Reasoning
uses specific observations to develop general conclusions
-outcome is a testable hypothesis
CH1 The Scientific Method
observation
ask a question
form a hypothesis that answers your question
make a prediction based on your hypothesis
do an experiment to test your hypothesis
analyze results (if hypothesis is wrong, go back to step 3)
if correct, report results
CH1 Cell Theory
all living things are made of cells, and all cells come from existing cells
CH1 Molecular Basis of Inheritance
DNA encodes genes which control living organisms and are passed from one generation to the next
CH1 Structure&Function
a molecules’s structure can often tell us about its functions
CH1 Cell Info
cells store information from both DNA and the environment
CH1 Evolutionary Change
living organisms come from a common origin, diversity of life is from evolutionary change
CH1 Evolutionary Conservation
critical characteristics are passed on
CH2 All matter is composed of ___
atoms
CH2 Atoms are composed of __, __, __
protons- positively charged particles
neutrons- neutral particles
electrons- negatively charged particles
CH2 Protons and neutrons are found in the __
nucleus
CH2 Electrons are found in the __
orbitals that surround the nucleus
CH2 Atomic number
number of protons
CH2 Atoms with the same atomic number _____
have the same chemical properties and belong to the same element
CH2 Each proton and neutron have a mass of (roughly) __
1 dalton
CH2 Isotopes
atoms of the same element that have different atomic mass numbers due to different numbers of neutrons
CH2 Neutral atoms
have the same number of protons and electrons
CH2 Ions
charged atoms
CH2 Two types of ions and their charges are:
cations: positive charge (fewer electrons than protons)
anions: negative charge (more electrons than protons)