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6. The nervous system is .... and activates the ... system. The endocrine system is ... to respond and responds to ...

  • fast, endocrine, slow, positive feedback
  • fast, endocrine, slow, negative feedback
  • slow, gastric, fast, positive feedback
  • slow, gastric, fast, negative feedback

7. What is an endogenous biological rhythm?

  • Generated internally and is self sustaining
  • Generated internally and requires a pacemaker
  • Generated externally and is self sustaining
  • Generated externally and requires a pacemaker

8. Which of these are water soluble?

  • Some amines
  • All of the above
  • Peptides
  • Ones free in blood

9. What is a trophic hormone?

  • Has an indirect effect on a target organ
  • Regulates secretion/production of another hormone in a gland
  • Regulates secretion/production of itself
  • Has a direct effect on a target organ

10. How do clock genes switch off transcription?

  • Accumulate in suprachiasmatic nucleus neurones.
  • Stop in light
  • Trigger negative feedback response
  • Cause the release of an inhibitor

11. What happens when clock proteins degrade?

  • Adds inhibition causing degradation of clock genes
  • Removes inhibition causing degradation of clock genes
  • Removes inhibition causing activation of clock genes
  • Adds inhibition causing activation of clock genes

12. Which of these is NOT a hormone receptor?

  • All of these
  • Nucleus receptor
  • Membrane receptor
  • Internal receptor

13. Ciralunadian is a ... rhythm, Circnnual is a ... rhythm

  • Tidal, Yearly
  • Monthly, Yearly
  • Tidal, regular
  • Monthly, regular

14. Which of these isn't true about the endocrine system?

  • Sense internal change
  • Action on a close target
  • Secretion into blood
  • Respond by acting on other body systems

15. Light activates photoreceptors in which part of the body to activate clock genes?

  • Retina
  • Skin
  • Hair
  • Mouth

16. Hormone response is proportional to the number of ... it binds to.

  • peptides
  • receptors
  • amines
  • proteins

17. What is a steroid hormone?

  • Synthesised from cholesterol and is released in vesicles
  • Synthesised from guanine and is released in vesicles
  • Synthesised from cholesterol and diffuses across plasma membrane
  • Synthesised from proteins and diffuses across plasma membrane

18. Which of these is a circadian rhythm?

  • Crepscular
  • Diurnal
  • All of the above
  • Nocturnal

19. What is a peptide hormone?

  • Prepro->pro->hormone, packaged into vesicles before being secreted in blood
  • Prepro->pro->hormone, secreted in gut
  • Prepro->pro->hormone, packaged into vesicles before being secreted in gut
  • Prepro->pro->hormone, secreted in blood

20. Which two parts of the brain link the nervous system to maintain homeostasis?

  • The Hypothalamus and Cerebrum
  • The Hypothalamus and Pituitary Gland
  • The Cerebellum and Pituitary Gland
  • The Cerebellum and Cerebrum