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Chemistry of Life

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  • What are the molecules that make up the cell membrane?
    phospholipids
  • What are some forms of lipids?
    steroids, waxes, oils
  • Carbohydrates are used for ....
    energy, to store energy
  • What are the basic building blocks of all matter?
    atom
  • What is osmosis?
    the movement of water through a cell membrane
  • DNA is a type of
    nucleic acid
  • NaCl, is it an atom, compound or a molecule?
    it is a compound and molecule
  • What happens to cells that allow excessive amounts of water to enter
    It will swell up and burst
  • nucleic acid is made up smaller molecules called
    nucleotides
  • What are the functions of lipids?
    to store energy, do not mix with water
  • Multicellular organisms .....
    are made up of multiple cells; more than one cell
  • Multicellular organims are eukaryotes. True or False.
    True
  • A unicelluar organism is ....
    made up of one cell, only
  • Starches are
    made of many sugar molecules linked together.
  • Most cells are small. Cells have more surface area per volume. True or False
    True
  • Nucleic acids is a
    molecule that carries information (like recipe)
  • What is a a molecule that has a phosphorus head and a lipid tails?
    phospholipid
  • What is the smallest functinal and structural unite of all organisms?
    a cell
  • Proteins are broken down into ....
    Amino acids
  • A eukaryote is .....
    cells that contain DNA in a nucleus and have membrane-bound organelles.
  • H2O, is it an atom, compound, or a molecule?
    compound, molecule
  • All cells have ......(name 4)
    cell membrane, cytoplasm, organelles, DNA
  • examples of proteins are
    meat, chicken, lamb, fish, some vegatables
  • He, is it an atom, compound, or a molecule?
    atom
  • O2, is it an atom, compound or a molecule?
    molecule
  • Lipids are know as ....
    fats
  • What happens to a cell that loses to much water?
    It will shrivel and die
  • Which of these are the smallest? a cell, atoms, molecules or cell membranes
    atoms
  • A eukaryote has cells that do not contain a nucleus, whereas a prokaryote has cells that have a nucleus
    False
  • What are other names of carbohydrates?
    starches, complex carbohydrates, sugars, some fibers
  • Multicellular organims are prokaryotes. True or False.
    False
  • A group of atoms that are held together by chemical bonds are called ....
    a molecule
  • A prokaryote is a ....
    single-celled, no nucleus, no membrane-bound organelles, generally smaller than a eukaryote cell
  • Give an example of a molecule.
    H20, NaCl, glucose, C6H12O6
  • Carbohydrates are made up atoms of ....
    carbon, hydrogen, oxygen
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