flashcard tes.txt

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tsbride
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37077
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flashcard tes.txt
Updated:
2010-09-24 13:43:26
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Science
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Unit 1~Cells
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  1. A parent cell forms a new cell by producing a small bump on its side which grows into the new cell
    budding
  2. A process of cell reproduction whereby a single cell splits apart to form two new identical cells; cell division
    mitosis
  3. Cells that have a cell embrane, cytoplasm, and a nucleus
    eukaryote cells
  4. Simple organisms that consist of one cell. They are a type of prokaryote cells (no nucleus).
    bacteria
  5. The basic unit of all living things.
    cell
  6. The thin-layer outer structure of each cell that completely surrounds the cell and holds the other contents of the cell within it.
    cell membrane
  7. A non-living chemical produced by the plant's cells. It surrounds the cell outside the cell membrane. It is harder than the cell membrane.
    cell wall
  8. The fluid material (mainly water) within the cell membrane that does not include the nucleus.
    cytoplasm
  9. The type of cell that contains three basic parts: the cell membrane, the cytoplasm, and the nucleus.
    eukaryote
  10. Contains more than one cell, usually many cells.
    multicellular
  11. The command center that controls the life and activity of the cell. It is located within the cytoplasm of the cell.
    nucleus
  12. The type of cell that contains only two basic parts: the cell membrane and protoplasm. It does not have a nucleus. Bacteria are an example of this cell.
    prokaryote
  13. The inner fluid material within the cell membrane.
    protoplasm
  14. One-celled. Living things that have only one cell.
    unicellular
  15. The long strands of material within the nucleus made up of DNA, RNA, and other proteins
    chromatin
  16. The orderly strands of chromatin that form when a cell is going to reproduce.
    chromosome
  17. Abbreviation for Deoxyribonucleic Acid. A very large, complex molecule that forms a double-helix shape and is contained in the chromatin of cells.
    DNA
  18. Part of the DNA within the cell. Genes are like recipes for making specific types of proteins in the cell.
    genes
  19. An outer, double-membrane covering for the material within the nucleus.
    nuclear membrane
  20. A small part within the nucleus that is very condensed chromatin and consists mainly of RNA and other proteins.
    nucleolus
  21. Tiny sub-parts of material within the cytoplasm of a cell that produce proteins, energy, or perform a specialty function.
    organelles
  22. A molecule that forms most of the material for the cell membrane and the nuclear membrane. It forms a double layer to make the cell membrane and four layers on the nuclear membrane.
    phospholipid
  23. Large, complex molecules made up of smaller units called amino acids. All proteins contain carbon, hydrogen, nitrogen, and oxygen. They may also contain other elements. Proteins are important in the life and activities of cells
    proteins
  24. Abbreviation for Ribonucleic Acid. A complex molecule similar to DNA that plays an important role in making the proteins within cells.
    RNA
  25. A substance that forms the walls of plant cells.
    cellulose
  26. The green pigment in a plant cell chloroplast that gives the plant a green color.
    chlorophyll
  27. An organelle found in the cytoplasm of plant cells that contain chlorophyll and is involved in energy production in the cell.
    chloroplast
  28. A very important process in plants that takes energy from sunlight and the chlorophyll in the plant and forms oxygen and sugars from carbon dioxide and water.
    photosynthesis
  29. The outside layers of cells which cover plants.
    epidermal
  30. A layer of cells that form the skin and the linings of various inner organs and glands.
    epithelial
  31. A group of similar cells connected together that perform similar work.
    tissue
  32. The capacity to do work. Both plants and animals need energy to do their work.
    energy
  33. A process by which cells combine oxygen with food and give off carbon dioxide and energy.
    respiration

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