Intro to Cells
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Atom | smallest basic unit of matter
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| Molecule | two or more atoms held together by covalent bonds; not necessarily a compound
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| Organelle | membrane-bound structure that is specialized to perform a distinct process within a cell
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| Cell | basic unit of life
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| Tissue | group of cells that work together to perform a similar function
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| Organ | group of different types of tissues that work together to perform a specific function or related functions
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| Organ System | two or more organs that work in a coordinated way to carry out similar functions
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| Organism | any individual living thing
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| Biomolecules | molecules that occur naturally in living organisms and include macromolecules like proteins, carbohydrates, lipids and nucleic acids
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| Carbohydrates | molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches
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| Lipids | nonpolar molecule composed of carbon, hydrogen, and oxygen; includes fats and oils
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| Proteins | polymer composed of amino acids linked by peptide bonds; folds into a particular structure depending on bonds between amino acids
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| Nucleic Acids | polymer of nucleotides; the genetic material of organisms
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| RNA | nucleic acid molecule that allows for the transmission of genetic information and protein synthesis
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| DNA | molecule that stores genetic information in all organisms
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| Double Helix | model that compares the structure of a DNA molecule, in which two strands wind around one another, to that of a twisted ladder
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| Nucleotide | monomer that forms DNA and has a phosphate group, a sugar, and a nitrogen-containing base
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| Nitrogen Base | a nitrogen-containing organic compound that makes up nucleic acids
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| Phosphate | a molecule containing a phosphorus atom with 4 oxygen atoms bonded to it.
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| Deoxyribose Sugar | the sugar found in deoxyribonucleic acid.
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| Hydrogen Bond | attraction between a slightly positive hydrogen atom and a slightly negative atom
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| Asexual Reproduction | process by which offspring are produced from a single parent; does not involve the joining of gametes
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| Sexual Reproduction | process by which two gametes fuse and offspring that are a genetic mixture of both parents are produced
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| Feedback Mechanisms | information that is compared with a set of ideal values and aids in maintaining homeostasis
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| Positive Feedback | control system in which sensory information causes the body to increase the rate of change away from homeostasis
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| Negative Feedback | control system for homeostasis that adjusts the body’s conditions when the conditions vary from the ideal
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| Buffer | a solution that resists changes in pH when an acid or base is added to it
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| Inorganic Solvent | a solvent that does not contain carbon
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| Solute | substance that dissolves in a solvent and is present at a lower concentration than the solvent
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| Solvent | substance in which solutes dissolve and that is present in greatest concentration in a solution
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| Solution | mixture that is consistent throughout; also called a homogeneous mixture
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| Solubility | how easily something is dissolved
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| Reactant | substance that is changed by a chemical reaction
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| Product | substance formed by a chemical reaction
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| Turgidity | water pressure applied to plant cells to keep them rigid
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| Hydration | the act of keeping enough water in your system
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| Hydrophilic | water loving
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| Hydrophobic | water fearing
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| Evolution | change in a species over time; process of biological change by which descendents come to differ from their ancestors
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Mr. Hope
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