Biology 3201 (1.1)

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Author:
jordanloder
ID:
59806
Filename:
Biology 3201 (1.1)
Updated:
2011-01-24 15:02:32
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bio
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bio
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  1. What does a large cell volume to surface area ratio mean?
    Materials like nutrients and wastes have difficulty diffusing in and out of cells
  2. T/F: it will be easy for a large cell to meet its nutrient requirements
    False
  3. What do large cells do to reach their nutrient requirements? What does this do?
    • Divide when they reach a certain size;
    • this increases the surface area to volume ratio and therefore the ease with which nutrients and wastes may enter and leave the cell.
  4. What is gray matter used for? White matter?
    Gray matter: processing; white matter: communicating
  5. The large upper region of the brain
    Cerebrum
  6. Involved in the control of muscles and the integration of information from other parts of brain + allows critical thinking to occur
    Frontal lobe
  7. Recieves sensory information from skin and skeletal muscles and is associated with the sense of taste
    Parietal lobe
  8. Receives information from eyes/associated with visual processing
    Occipital lobe
  9. Receives information from ears and is associated with auditory processing/involved in memory and speech
    Temporal lobe
  10. Helps maintain balance and posture of the body; motor area of the brain
    Cerebellum
  11. Extends downward from the brain and connects to the spinal cord; controls basic life functions like heartbeat and breathing
    Medulla oblongata
  12. Sensory relay station; receives impulses from most sensory neurons entering the brain and directs them to parts of the cortex to be interpreted
    Thalamus
  13. Controls hunger, thirst, temperature maintenance, water balance, blood pressure, and release of many hormones
    Hypothalamus
  14. A short segment of the brainstem between the cerebrum and the pons- particularily involved in sight and hearing- contains auditory and visual reflex arcs
    Midbrain

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