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Stack #60915
| Question | Answer |
|---|---|
| cell | basic unit of living matter |
| gene | Unit of inherited DNA |
| unicellular | consisting of 1 cell |
| prokaryotic | lacking membrane-bound organelles |
| eukaryotic | has nucleus and membrane-bound organelles |
| multicellular | having more than one cell |
| homeostasis | internal stability of the body |
| adaptation | inherited characteristic that improves an organism's ability to survive and reproduce |
| natural selection | organism better suited leaves more offspring |
| observation | use of senses to gather and record info |
| hypothesis | suggested, testable answer to a scientific ? |
| evidence | collected body of data from observations and experiments |
| compound | substance with 2 or more elements chemically combined |
| atom | smallest particle of an element |
| nucleus | central core of atom that has protons and neutrons |
| ionic bond | chemical bond in which atoms transfer electrons |
| covalent bond | chemical bond in which atoms share electrons |
| reactant | starting materials |
| product | end result |
| solution | uniform mixture of 2 or more substances |
| solvent | subtance that dissolves another substance |
| solute | subtance that is dissolved |
| organic molecule | carbon-based molecule |
| inorganic molecule | non carbon-based molecule |
| cell theory | 1.all things are made up of cells 2.cells are the basic unit of structure and function 3.cells come from preexisting cells |
| organelle | part of a cell with a specific function |
| cytoplasm | region of cell between nucleus and plasma |
| cell wall | strong wall that surrounds a plant cell and gives shape |
| diffusion | movement from more to less concentration |
| osmosis | passive transport of water across the selectively permeable membrane |
| hypertonic | having a higher concentration |
| hypotonic | having a lower concentration |
| isotonic | having a solute concentration that is equal |
| exocytosis | exporting proteins from a cell by a vesicle fusing with the plasma membrane |
| endocytosis | taking material into a cell within vesicles that bud inward form the plasma membrane |
| ribosome | cluster of proteins and nucleic acids that make protein in a cell |
| lysosome | membrane-bound sac that breaks down materials in a cell |
| ATP | main energy source that cells use for most of the work |
| mitochondria | cell organelle where cell respiration occurs |
| cilia | short structures projecting from a cell that help it move |
| flagella | long whip-like structures that enable some cells to move |
| autotroph | makes its own food |
| hetertroph | relies on others to make food |
| kinetic energy | energy of motion |
| potential energy | stored enery due to objects position or arrangement |
| aerobic | requires oxygen |
| metabolism | all of a cell's chemical processes |
| glycolosis | splitting of glucose molecules |
| krebs cycle | stage of cell respiration that finishes the breakdown of pyruvic acid molecules to CO2, releasing energy |
| anaerobic | w/o oxygen |
| chloroplast | plant cell organelle where photosynthesis takes place |
| chlorophyll | pigment that gives plant its color |
| pigment | determines a substance's color |
| trait | variation of a particular inherited character |
| genetics | study of heredity |
| homozygous | having identical alleles for a trait |
| heterzygous | different alleles for a trait |
| dominant | allele in a heterozygous individual that appears to be the only one affecting the trait |
| recessive | doesn't appear to affect the trait (hidden) |
| phenotype | physical appearance |
| genotype | genetic makeup |
Created by:
ecarbo
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