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5 Written questions

5 Matching questions

  1. Describe a chemical bond?
  2. Review the types of cells by shape
  3. What is meiosis?`
  4. What are the types of chemical reactions in the body?
  5. What is contained in the spinal cavity?
  1. a Force or attraction between positive and negative charges that keeps atoms closely together
  2. b Spinal vertebre
  3. c 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)
  4. d process of cell division that results in the formation of gametes which are egg and sperm cells.
    (used for creating human life)
  5. e

5 Multiple choice questions

  1. - cell membrane
    - nucleus
    - cytoplasm and organelles
  2. 1. Simple squamous -one layer of flat cells (alveoli of lungs, permits diffusion of gases)
    2. Stratified squamous- many layers of cells (epidermis, lining of esophagus and vagina)
    3. Transitional- many layers of cells (lining of bladder, permits expansion)
    4. Cuboidal- one layer of cube shaped cells (thyroid gland, salivary gland, kidney tubules) excretory
    5. Columnar- One layer of column shaped cells (lining of stomach, lining of small intestine and absorbs products in digestion)
    6. Ciliated- one lay of columnar cells with cilia on free surfaces (lining of trachea to sweep mucus and dust pharynx and lining of fallopian tube to sweep ovum toward uterus)
  3. Positive and negative feedback mechanisms
  4. Heart and lungs
  5. 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)

5 True/False questions

  1. 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)

          

  2. What is a buffer and what does it do?A buffer system is a chemical or pair of chemicals that minimizes changes in pH by reacting with strong acids or strong bases
    (ex: buffer bonds to H+ ions when body fluid is becoming too acidic or release H+ ions when fluid becomes too alkaline)

          

  3. What is the formula for glucose?A solution with lower salt concentration than in the cells
    (cells burst) MORE WATER THAN IN CELL

          

  4. What are the mucous membranes and where are they 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

          

  5. What are the 2 major types of membranes found in the body?1. Epithelial membranes
    2. Connective Tissue membranes