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32 Cards in this Set
- Front
- Back
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8 characteristics of life
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growth, reproduction, organization, adaptation, irritability, metabolism, homeostasis, information
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empirical
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based on observations and experience
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scientific approaches
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discovery method: inductive, builds observations.. point up
hypothesis science: scientific method, point down 1. observation 2. problem 3. hypothesis 4. experiment 5. conclusion |
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hypothesis
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educated guess that can be tested
one person value placed on testability |
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theory
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time tested hypothesis
more than one person carries weight more comprehensive |
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biology
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the study of life
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evolution
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unifying theme
accounts for combination of unity/diversity descent with modification - unequal reproductive success |
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ionic bond
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transfer of electrons
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covalent bond
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sharing of electrons
forms molecule |
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reactants
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starting materials in reaction
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products
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end result materials in reaction
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acid
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ph 0-7 (0 strongest)
gives hydrogen ions in soln. |
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base
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ph 7-14 (14 strongest)
takes hydro ions in soln. |
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buffer
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substances taht resist changes in ph by accepting or donating h ions when unbalanced
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monomer
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basic unit of an organic compnd.
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dehydration synthesis
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how organic molecules are put together removing water
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hydrolysis
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breaking apart organic molecules by adding water
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isomers
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compounds that have same molecular formulas but different structural formulas
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peptide bonds
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bonds between proteins
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isotope
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atoms with same atomic number but different weights
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denaturation
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breaking of protein bonds
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cell theory
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1.all living organisms composed of cells
2.cell is the basic unit of structure and function 3.cells come from preexisting cells |
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2 main categories of cells
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prokariotic, eukariotic
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all cells have
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cell membrane
cytoplasm nucleus |
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nucleoli
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produces components of ribosomes
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ribosomes
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site for protein synthesis
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endoplasmic reticulum
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cytoplasmic network of channels
-rough-ribosomes -smooth-no ribosomes |
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golgi apparatus
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warehousing and storage
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vacuoles
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fluid filled space
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lysosomes
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enzymes
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chloroplasts
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photosynthesis
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mitochondria
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powerhouse for cellular respiration
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