Science Quiz One

  1. a plastid containing chlorophyll and other pigments, occurring in plants and algae that carry out photosynthesis
  2. a small spherical or rod-like body, bounded by a double membrane, in the cytoplasm of most cells: contains enzymes responsible for energy production
  3. a very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage of substances into and out of the cell
    Cell Membrane
  4. the outer layer of a cell, especially the structure in plant cells that consists of cellulose, lignin, etc, and gives mechanical support to the cell
    cell wall
  5. (in the cells of eukaryotes) a large compartment, bounded by a double membrane, that contains the chromosomes and associated molecules and controls the characteristics and growth of the cell
  6. a membranous complex of vesicles, vacuoles, and flattened sacs in the cytoplasm of most cells: involved in intracellular secretion and transport
    Golgi Apparatus
  7. any of numerous minute particles in the cytoplasm of cells, either free or attached to the endoplasmic reticulum, that contain RNA and protein and are the site of protein synthesis
  8. a specialized part of a cell having some specific function; a cell organ
  9. a small, cylindrical cell organelle, seen near the nucleus in the cytoplasm of most eukaryotic cells, that divides in perpendicular fashion during mitosis, the new pair of centrioles moving ahead of the spindle to opposite poles of the cell as the cell divides: identical in internal structure to a basal body
  10. Compare group one of the horizontal rows of elements in the periodic table. Each period starts with an alkali metal and ends with a rare gas
  11. any group of related things or beings, especially when scientifically categorized
  12. a homogeneous mixture of two or more substances in which the molecules or atoms of the substances are completely dispersed. The constituents can be solids, liquids, or gases
  13. a substance that contains atoms of two or more chemical elements held together by chemical bonds
  14. A substance that cannot be broken down into simpler substances by chemical means. An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element.
  15. an aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other
  16. an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
  17. a positively charged elementary particle that is a fundamental constituent of all atomic nuclei
  18. an elementary particle having no charge, mass slightly greater than that of a proton
  19. a stable elementary particle present in all atoms, orbiting the nucleus in numbers equal to the atomic number of the element in the neutral atom; a lepton with a negative charge
  20. the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus
    Atomic Number
  21. an act or instance of regarding attentively or watching
  22. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.
  23. is one in which one organism, the parasite, lives off of another organism, the host, harming it and possibly causing death. The parasite lives on or in the body of the host
    Parasitic Relationship
  24. any living biological entity, such as an animal, plant, fungus, or bacterium
  25. Ionic Bond
    the electrostatic bond between two ions formed through the transfer of one or more electrons
  26. the bond formed by the sharing of a pair of electrons by two atoms
    Covalent Bond
  27. a group of individuals of the same species inhabiting a given area
  28. a group of interdependent plants and animals inhabiting the same region and interacting with each other through food and other relationships
  29. A collection of living things and the environment in which they live, for example, a prairie ecosystem includes coyotes, the rabbits on which they feed, and the grasses that feed the rabbits.
  30. a series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological community
    Food Web
  31. of or characterized by the absence of life or living organisms
  32. of or relating to living organisms
  33. the study of the relationships between living organisms and their environment
  34. any of a large group of organic compounds that are esters of fatty acids ( simple lipids , such as fats and waxes) or closely related substances ( compound lipids , such as phospholipids): usually insoluble in water but soluble in alcohol and other organic solvents. They are important structural materials in living organisms
  35. any of a group of organic compounds containing one or more amino groups, -NH 2 , and one or more carboxyl groups, -COOH. The alpha-amino acids RCH(NH2 )COOH (where R is either hydrogen or an organic group) are the component molecules of proteins; some can be synthesized in the body( nonessential amino acids ) and others cannot and are thus essential components of the diet ( essential amino acids)
    Amino Acids
  36. any of a group of molecules that, when linked together, form the building blocks of DNA or RNA
  37. Any of a large class of organic compounds consisting of carbon, hydrogen, and oxygen, usually with twice as many hydrogen atoms as carbon or oxygen atoms. Carbohydrates are produced in green plants by photosynthesis and serve as a major energy source in animal diets. Sugars, starches, and cellulose
  38. a molecule of low molecular weight capable of reacting with identical or different molecules of low molecular weight to form a polymer.
    Monomer/building blocks
  39. method of determining quantity, capacity, or dimension
Card Set
Science Quiz One
Bio/chem terms