Set 1 only: B12 - Homeostasis
Independent learning
Introduction
Homeostasis is the regulation of conditions in the body such as temperature, water content and urea levels. In this topic you will learn about how and why your body controls these levels. You will understand the role and functions of the human kidney, linking with work on diffusion, osmosis, and active transport in B1. You will also compare dialysis with transplantation and be able to analyse the advantages and disadvantages of both treatment options.
Specification link:
Task 1: Know
Use look, cover, write check and quizlet to learn the answers to the core questions and the keywords for this topic. Then listen to the podcast to get an overview.
Learn
Task 2: Controlling body temperature
Task 2b: Make notes that:
Define homeostasis
State how body temperature is monitored
Explain the role the thermoregulatory centre plays in temperature control
Explain what vasodilation and vasoconstriction are and how these mechanisms affect the body’s temperature
Task 2c: Complete the exam questions - mark your answers (they are on slides 13-15) once you are done.
Task 3: Removing waste products
Task 3b: Make notes that:
State 2 waste products and why they need to be removed from the body
Explain why it is important to maintain the water and ion concentration in the blood
State the process in which water leaves the body via the lungs.
State what is lost from the skin in sweat
Task 3c: Complete the progress quiz
Task 4: The kidney
Task 4a: Watch this video and the one below then read through the slides
Task 4b: Make notes that:
Describe the function of kidneys in maintaining the water balance of the body, ensure you state and describe all 3 stages (ultrafiltration, selective reabsorption and excretion)
State what excretion is
Describe the effect of ADH on the permeability of the kidney tubules and state how this is controlled
Task 4c: Complete the exam questions -mark your answers.
Task 5: Kidney Dialysis
Task 5b: Make notes that:
State what can lead to kidney failure
Explain how kidney dialysis works
Evaluate the advantages and disadvantages of treating kidney failure kidney with dialysis
Task 5c: complete the exam questions -mark your answers once you are done.
Task 6: Kidney transplants
Task 6a: watch the videos
Task 6c: make notes that:
Describe what a transplant is
Explain what organ rejection is and how it can be prevented
Evaluate the advantages and disadvantages of treating kidney failure with organ transplant.
Task 6d: Complete the exam question - mark your own answers using the mark scheme.
Task 7: Summary
Task 7a: Watch the videos
Task 7b: Complete the seneca learning unit
Task 7c: Make a mind map or single page revision summary of this topic use the specification links to help you
Add it to your revision folder
Task 8: Check
Task 8: Complete the quiz for your set to make sure you understand this unit.