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5 Written questions

5 Matching questions

  1. What is cellular respiration?
  2. What are the different kinds of bonding atoms?
  3. What is meiosis?`
  4. What is a buffer and what does it do?
  5. Describe an ionic bond?
  1. a Involves loss of electron of one atom and the gaining of an electron on another atom (ex: NaCl or salt)
  2. b process of cell division that results in the formation of gametes which are egg and sperm cells.
    (used for creating human life)
  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 1. Chemical bonds
    2. Ionic bonds
    3. Covalent bonds
    4. Disulfide and Hydrogen bonds
  5. e 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)

5 Multiple choice questions

  1. urinary bladder and reproductive organs
  2. Positive and negative feedback mechanisms
  3. 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. ability of the body to maintain a relatively stable metabolism and to function normally despite changes
  5. Serous membranes are in closed body cavities where the serous fluid prevents friction between the two layers of the serous membrane.
    ---Thoracic cavity: partial pleura lines chest wall and cisceral pleura covers the lungs.
    ---Pericardial sac: parietal pericardium lines the fibrous pericardium and the visceral pericardium covers the heart muscle.
    ---Abdominal cavity: peritoneum lines the abdominal cavity and mesentary covers the abdominal organs

5 True/False questions

  1. Describe a covalent bond?Covalent bonds share electrons between atoms
    (ex: H20 or water)

          

  2. What are the cell organelles and what do they do?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)

          

  3. What is facilitated diffusion and how does it work?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. What is a gene?A genetic code for protein

          

  5. 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