B2.1 - Homeostasis and response Halfway Review

Candidate Name:

Can you define the following words?

  • Hormones
  • Gland
  • Insulin
  • Dialysis
  • Negative Feedback Cycle
  • Synapse
  • Receptor
  • Risk Factor
  • Diuretic
  • Relay Neurone
  • Sensory Neurone
  • Motor Neurone
  • Homeostasis
  • Nervous system
  • Effector
  • Central Nervous System
  • Reflex Arc
  • Impulse
  • Neurone
  • Stimulus
1) Why is the nervous system important?


2) How is the nervous system adapted to its function?


3) What do the control systems in the body include?


4) How is this control made automatic?


5) What is homeostasis?


6) Why is homeostasis important?


7) What things does homeostasis control?


8) How is information transmitted in the nervous system?


9) What is in the central nervous system?


10) What is the role of the central nervous system?


11) What are the stages of the reflex arc?


12) How are the neurones adapted to their function?


13) Why are reflex actions so important?


14) How are reflex actions described?


15) Required Practical 7 - Reaction Time (AT skills 1,3,4)


16) What is the endocrine system and what is its role?


17) What are the names of the glands labelled 2, 4, 6, 7, 8 and 9 in the following image? http://bit.ly/2Cy01Tj


18) What is the role of the bloodstream in the endocrine system?


19) How does the endocrine system compare to the nervous system?


20) What is the pituitary gland described as and what is its role?


21) What do the hormones released by the pituitary gland do?


22) (HT) Where are thyroxine and adrenaline created in the body?


23) (HT) What is the role of adrenaline in the body?


24) (HT) What is the role of thyroxine in the body?


25) (HT) How are thyroxine levels controlled?


26) What organ monitors and controls blood glucose concentration?


27) How does the pancreas control blood glucose levels?


28) What do the liver and muscle cells do to excess glucose?


29) How does insulin control blood glucose levels?


30) What is type 1 diabetes and how is it treated?


31) What is type 2 diabetes and how is it controlled?


32) Which diabetes is obesity a risk factor for?


33) (HT) How does the body increase the blood glucose concentration?


34) (HT) How does glucagon control blood glucose levels?


35) How do osmotic changes in fluids affect red blood cells?


36) (HT) How does ADH affect the permeability of the kidney tubules?


37) How does water from the lungs leave the body?


38) (HT) What is the role of the hormone ADH?


39) What is lost from the skin through sweat?


40) (HT) How is water concentration controlled by ADH and what is this process controlled by?


41) Can we control loss through the lungs and skin?


42) How are people with kidney failure treated?


43) What is lost in urine?


44) What happens to body cells if they lose of gain too much water?


45) (HT) Where do excess amino acids come from and how do we safely get rid of them?


46) What is the function of the kidneys?


47) How do the kidneys produce urine?


48) What is the function of the brain and what is its structure?


49) What are the functions of the cerebral cortex, cerebellum and medulla?


50) (HT only) Why is it so hard to treat damage to the brain?


51) (HT only) How did neuroscientists discover the functions of the different parts of the brain?


52) (HT only) What characteristics of the brain make it difficult to treat and investigate brain disorders?


53) How do the cilliary muscles and the suspensory ligaments allow the eye to focus on near or distant objects?


54) How is the eye adapted to its function?


55) How are the structures of the following related to their functions: - retina - optic nerve - sclera - cornea - iris - ciliary muscles - suspensory ligaments?


56) What is accommodation?


57) What processes must the eye go through in order to focus on a near object or on a distant object?


58) What are myopia and hyperopia and how do they affect the eye?


59) What are myopia and hyperopia usually treated with and how do they help?


60) What new technologies are there in place to treat eye defects?


61) What controls body temperature and how does it do it?


62) What is the role of the skin in monitoring body temperature?


63) What happens to the body when the core body temperature is too low?


64) How do vasodilation and sweating help cool down the body?


65) What happens to the body when its core temperature is too low?


66) (HT only) How does vasoconstriction help increase the body temperature?


67) How do the Big Ideas link to this topic?

a) Forces:





b) Particles:





c) Energy:





d) Cells: