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5 Written questions

5 Matching questions

  1. What is the cell membrane made up of and what is its function?
  2. What is diffusion and how does it work?
  3. What are the major parts of a cell?
  4. Name some ways the body uses homeostasis?
  5. What is a hormone and what does it do?
  1. a secretion of an endocrine gland that has effects on target organs
    (ex: Insulin - enables cells to take in glucose and lowers glucose levels. Growth hormone - increases protein synthesis and cell division)
  2. b - cell membrane
    - nucleus
    - cytoplasm and organelles
  3. c 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)
  4. d outer boundary of a cell made up of phospholipids, cholesterol and proteins.
    its main job is to protect the cell and acts as a barrier for communication and assists in transport
  5. e Positive and negative feedback mechanisms

5 Multiple choice questions

  1. bodys response to stimuli reverses the stimulus in effect turning it off for a while and keeps the body within normal range
  2. the response to stimuli does not stop but rather keeps the sequence of events going. (requires an external brake)
    EX: cervical stretching during childbirth
  3. Nucleus is within the cytoplasm and has a nuclear membrane with nucleoli and chromosomes of the cell. Nucleolus is where DNA and all genetic info for human traits lies.
  4. process of cell division that results in the formation of gametes which are egg and sperm cells.
    (used for creating human life)
  5. 1. The dorsal cavity which contains the spinal and cranial cavity
    2. The ventral cavity which contains the thoracic, abdominal and pelvic cavities

5 True/False questions

  1. Describe an ionic bond?Involves loss of electron of one atom and the gaining of an electron on another atom (ex: NaCl or salt)

          

  2. What is isotonic?A solution with the same salt concentration as in cells

          

  3. What is active transport and how does it work?Requires energy of mechanical pressure. Water and dissolved materials are FORCED through a membrane from an area of higher PRESSURE to an area of lower PRESSURE
    (Example: formation of tissue fluid and the first step in the formation of urine)

          

  4. Point out cell organelles and name

          

  5. What is the formula for glucose?C6H12O6