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6. The thermoregulatory centre is also known as...

  • The Pancreas
  • The Hypothalamus
  • The Medulla Oblongata
  • The Pituitary Gland

7. What ion binds to troponin, causing it to move tropomyosin to expose binding sites?

  • Ca2+
  • e-
  • Na+
  • K+

8. Which bands of the sarcomere decrease in length during contraction?

  • Just the H-zone
  • I-band and H-zone
  • I-band and A-band
  • I-band, A-band and H-zone

9. The medulla oblongata increases impulse frequency, via the sympathetic nervous system,to the SAN when..

  • The organism is resting.
  • Blood pressure is too high.
  • Carbon dioxide levels are too high in the blood plasma.
  • Carbon dioxide levels are low in the blood plasma.

10. A random movement in response to a non-directional stimulus is known as..

  • Positive Feeback
  • Kinesis
  • Taxis
  • Phototropism