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44 Cards in this Set
- Front
- Back
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hypothesis
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an educated guess based on prior knowledge
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volume
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the amount of space an object takes up
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density
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mass divided by volume
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why is the metric unit useful in science?
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easy to use, nationalized, based on 10
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549 m=_____ km
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0.549
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what is the metric unit and abbreviation for: mass- metric unit is_____ abbreviation is__
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grams and g
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what is the metric unit and abbreviation for: volume- metric unit is ____ abbreviation is __
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liter and l
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what is the metric unit and abbreviation for: length- metric unit is _____ abbreviation is __
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meter and m
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what device would you use to make the following metric measurments: volume
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gradguated cylinder
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know and understand all lab safety rules.
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GOGGLES!
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cell
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the smallest unit that can preform all life processes
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sexual reproduction
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2 parents that produce an offspring that share traits
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asexual reproduction
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1 parent produces an identical offspring
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protein
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molecules made of amino acids
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lipid
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compounds that can mix with water
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phospholipids
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molecules that form much of the cell membrane
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carbohydrate
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molecules made of sugar
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ATP
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the major energy carrying molecule in the cell
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nucleic acid
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molecule made of nucleotides
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describe the 6 characteristics of living things
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have cells, sense and respond to change, reproduce, have DNA, use energy, grow and develop
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how does sexual reproduction differ from asexual reproduction?
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in sexual reproduction 2 parents produce an offspring that shares characteristics with both. In asexual reproduction, 1 parent produces an offspring identical to itself
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what are the 4 necessities of living things?
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food, water, shelter, and air
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what are the 5 molecules of life and what does each do?
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carbohydrates: energy, proteins: muscle, lipids: makes cell membrane, nucleic acid: DNA/RNA; makes proteins, ATP: energy
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cell membrane
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a layer of phosophilipids that is a barrier between the inside a cell and its own enviroment
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organelle
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a structure that peforms specific functions within a cell
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nucleus
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an organelle only in eukaryotes that contain DNA; brain of cell
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prokaryote
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no organelles, smaller, no nucleus
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eukaryote
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larger, nucleus, organelles
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unicelluar
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1 cell dies, you die, reproduce quickly
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multicellular
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live longer
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cell wall
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plant
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ribosome
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makes protein
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mitochondrion
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makes ATP
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chloroplast
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plant
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levels of orginization
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-tissue
-organ -organ system -organism |
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what is the differenece between prokaryotes and eukayotes?
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prokaryotes: smaller, no nucleus, dont have membrane bound oraganelles, simpler, unicellualar oraganisms
eukaryotes: large, have a nucleus, membrane bound organelles, complex, some are multicellular |
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explain the relationship between cells, tissues, organs, organ systems, and organisms
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a group of cells that work together to perform a specific funstion is a tissue, a group of tissues form an organ, a group of organs form a organ system
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endocytosis
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to bring a particles into a cell
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exocytosis
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taking a particle out of a cell
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photosynthesis
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the process in which plants use carbondioxide and sunlight to make food
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cellular respiration
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the process in which animal cells use oxygen to produce energy from food
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explain how cells produce more cells
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from mitosis
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what is the purpose of mitosis?
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cells produce more
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heredity
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the passing of traits from parent to offspring
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