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5 Written questions

5 Matching questions

  1. What is cellular respiration?
  2. What is contained in the cranial cavity?
  3. What is diffusion and how does it work?
  4. What is facilitated diffusion and how does it work?
  5. Describe a covalent bond?
  1. a movement of molecules from an area of greater concentration to an area of lesser concentration along the concentration gradient. Very slow process. FOR MOLECULES
    (Example: exchange of gases in lungs or body tissues)
  2. b Contains skull and brain (CNS)
  3. c name for energy production within cells and involves the respiratory gases: oxygen and carbon dioxide
    (ex: glucose and oxygen combine to make carbon dioxide, water, ATP and heat)
  4. d Covalent bonds share electrons between atoms
    (ex: H20 or water)
  5. e molecules move through a membrane from an area of greater concentration to an area of lesser concentration with the help of a carrier enzyme
    (Example: intake of glucose by most cells)

5 Multiple choice questions

  1. Line the body tracts open to the environment
    ---respiratory , digestive, urinary and reproductive
    ---mucus keeps the living epithelium we and provides lubrication in the digestive tract
    ---traps dust and bacteria in the respiratory tract
  2. synthesis reactions: bonds are formed to join two or more atoms to make a new compound
    (ex: proteins are sythesized by the bonding of many amino acids)
    decomposition reactions: bonds are broken and a large molecule is changed to two or more smaller ones
    (ex: digestion of starch into many smaller glucose molecules)
  3. Involves loss of electron of one atom and the gaining of an electron on another atom (ex: NaCl or salt)
  4. 1. Chemical bonds
    2. Ionic bonds
    3. Covalent bonds
    4. Disulfide and Hydrogen bonds
  5. - cell membrane
    - nucleus
    - cytoplasm and organelles

5 True/False questions

  1. What is hypotonic?A solution with lower salt concentration than in the cells
    (cells burst) MORE WATER THAN IN CELL

          

  2. What is meiosis?`process of cell division that results in the formation of gametes which are egg and sperm cells.
    (used for creating human life)

          

  3. What is osmosis and how does it work?diffusion of water through a selectively permeable membrane. water will move from an area with more present to an area with less water present. takes place in the kidneys which reabsorb large amounts of water. FOR WATER

          

  4. Point out cell organelles and name

          

  5. What are the serous membranes and where they are located?Line the body tracts open to the environment
    ---respiratory , digestive, urinary and reproductive
    ---mucus keeps the living epithelium we and provides lubrication in the digestive tract
    ---traps dust and bacteria in the respiratory tract

          

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