Study

Biology: Cells

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  • Give at least two examples of one-celled or unicellular organisms
    Protozoa, bacteria, archaea, diatoms, etc...
  • Which of the following is true of all unicellular organisms? A. They are all prokaryotes. B. They all reproduce. C. They all have a nucleus.
    B.
  • The basic unit that makes up living things is called the ____.
    Cell
  • TRUE or FALSE. When an organism is in the process of growing, the number of cells that form and their size increase.
    False. The size of a many-celled organism bears no relation to the size of its cells.
  • TRUE or FALSE: All eukaryotes are multicellular.
    False
  • What is the name of the structure that is composed of at least two or more tissue types and performs a specific set of functions for the body?
    Organ
  • What are the differences between prokaryotic and eukaryotic cells?
    Prokaryotic cells do not have a nucleus, while eukaryotic cells have a nucleus and organelles.
  • Chloroplasts are found only in plant cells, they absorb sunlight to make ________.
    Food
  • What are the three main features of a cell? Give the name and function of each feature.
    Plasma Membrane, Cytoplasm, Genetic Material
  • TRUE or FALSE: Animals, plants, and fungi are examples of many-celled eukaryotes.
    True
  • organs can work together to carry out life processes. These functional structures are called _______.
    Systems
  • Activities or jobs of the cell are directed by the ____.
    Nucleus
  • Groups of similar cells that carry out a specific function in the organism
    Tissue
  • Between the nucleus and cell membrane is a liquid substance called?
    Cytoplasm
  • What is the cell theory?
    "All living things or organisms are made of cells"
  • It is the instrument that uses advanced technology to overcome the limitations of human sight and observe extremely tiny objects.
    Light microscope
  • What is the largest and most diverse group of organisms with prokaryotic cells?
    Bacteria
  • What are the two main types of cells?
    Prokaryotic and Eukaryotic cells
  • What is the appropriate unit of length to refer to cell dimensions?
    Micrometer or micron
  • What is chloroplast, central vacuole and cell wall?
    These three organelles can be found in plant cells but not in animal cells.