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51 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Characteristics of life |
organized, responsive, reproduce, change through time, grow |
ORRCG |
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homeostasis |
maintain internal balance |
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cell |
smallest unit of life |
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levels of organization |
atom, molecule, organnelle, cell, tissue, organ, organ system, organism, population community, ecosystem |
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prokaryotic and eukaryotic difference |
membrane nucleus |
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bacteria |
prokayotic and uicellular |
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protests |
eukaryotic and unicellular, producers (algae) consumers (slime molds) |
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plants |
eukaryotic and multicellular producers |
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evolution |
change in a group of organisms over time |
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hypothesis |
scientific explanation, educatedd guess, needs more experimentation |
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theory |
scientific explanation based on large accumulations of observations and scientific prnciples |
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control |
standard of comparison in an experiment |
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mutation |
accounts for genetic variation |
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atomic number |
number of protons |
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atomic mass |
number of protons and neutrons |
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radioactive isotopes |
extra neutrons |
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nucleus contains: |
protons and neutrons |
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ionic bond is |
electrical |
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salt |
NaCl |
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covalent |
shared electrons, organic molecules
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water is a |
good solvent, high heat containing properties |
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polar |
one larger atom stronger charged side |
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nonpolar |
equal sized atoms so on charge |
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lipid bilayer |
hydrophillic head (water loving) hydrophobic tail (water proof) |
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glucose dissolves in: |
water, its polar and forms H bonds with water |
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column of water is plants is due to: |
cohesion of water molecules |
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polar covalent |
unequal sharing of electrons |
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hydroxl |
-OH |
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methyl |
-CH3 |
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nonpolar covalent |
equal sharing of electrons |
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carboxyl |
-COOH |
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amino |
-NH3 |
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monomers (glucose) |
smaller subunis that compose a macromolucle |
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polymer (starch) |
larger molecules |
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starch |
plant sorage molecule |
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glycogen |
animal storage moleculle |
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cellulose |
plants structurl molecule |
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chitin |
insect exoskeleton and fungi |
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phospholipids |
plasma membrane |
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building blocks of proteins |
amino acids |
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building blocks of lipids |
triglycerides/fatty acids |
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1st law of thermodynamics |
energy can not be created or destroyed, just changed into different forms |
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2nd law of thermodynamics |
energy becomes more disorganized |
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entropy |
disorder |
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reactants yeild: |
products in reacions |
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enzymes |
acts as catalysts,, increase speed of reaction, don't change, specific |
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exergonic |
energy out |
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endergonic |
energy in |
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metabolism |
cell storage, elimination of waste, breaks nutrients to release energy |
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energy for living organisms comes from: |
breaking bonds of organic molecules |
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solar |
ultimate source of energy for mostof life |
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